| Research Interests | Curriculum Vitae | Education | Dissertation | Research Experience | Seminars | Publications | Teaching Experience | Advising | Lecture Notes and Textbooks | Professional Activity | Editorial Activity | Contact Addresses | |

 


Oleg GUTIK
Associate Professor of the Ivan Franko National University of Lviv


| Research Interests | Curriculum Vitae | Education | Dissertation | Research Experience | Seminars | Publications | Teaching Experience | Advising | Lecture Notes and Textbooks | Professional Activity | Editorial Activity | Contact Addresses | |

Publications

List of Publications


Books and Lecture Notes

  1. I. I. Guran, and O. V. Gutik, Mathematics for Economists. For Students of Departments of International Relations. Lecture Notes. Znannya, Kyiv, 2008, 388 pp. (in Ukrainian).

Scientific Papers

    1994:

  1. O. V. Gutik, Embedding of topological semigroups into simple semigroups, Mat. Stud. 3 (1994),10-14, (in Russian) (MR 1692849 (2000m:22006), Zbl 0928.22004).
  2. 1996:

  3. O. V. Gutik, Any topological semigroup topologically isomorphically embeds into a simple path-connected topological semigroup, Algebra and Topology, Lviv Univ. Press (1996), 65-73, (in Ukrainian).
  4. O. V. Gutik, On the structure of the band of a compact inverse semigroup with open translations, Mat. Stud. 6 (1996), 33-38, (in Russian) (MR 1691120 (2000a:22003), Zbl 0928.22005).
  5. O. V. Gutik, Embeddings of Topological Inverse Semigroups and the Structure of their Bands with Restrictions on Translations, Dissertation, Lviv State Univ. (1996) 96pp.
  6. 1997:

  7. O. V. Gutik, On a coarsening of a direct sum topology on the Bruck semigroup, Visn. L'viv. Univ., Ser. Mekh.-Mat. 47 (1997), 17-21, (in Ukrainian).
  8. 1998:

  9. O. V. Gutik, Embedding of countable topological semigroups into simple countable connected topolological semigroups, Mat. Metody Fiz.-Mekh. Polya 41 (1998), no. 3, 16-21 (in Ukrainian). English Version in: J. Math. Sci. 104 (2001), no. 5, 1422-1427 (MR 1706772 (2000e:22002), Zbl 0933.22004).
  10. 1999:

  11. O. V. Gutik, On compact semilattices with open principal filters, Mat. Metody Fiz.-Mekh. Polya 42 (1999), no. 3, 91-94, (in Ukrainian) (MR 1977866 (2004c:06009), Zbl 1050.54519).
  12. O. V. Gutik, On Howie semigroup, Mat. Metody Fiz.-Mekh. Polya 42 (1999), no. 4, 127-132, (in Ukrainian) (MR 1967818, Zbl 1047.22500).
  13. 2000:

  14. O. V. Gutik, Ye. G. Zelenyuk, On non-proper homomorphisms of the semigroups of ultrafiltres, Mat. Metody Fiz.-Mekh. Polya 43 (2000), no. 1, 19-22, (in Ukrainian) (MR 1972601 (2004b:22006), Zbl 1054.22002).
  15. O. Gutik, Compact topological inverse semigroups, Semigroup Forum 60 (2000), no. 2, 243-252 (MR 1830131 (2002e:22004), Zbl 0945.22002).
  16. O. V. Gutik, On homomorphisms of topological inverse semigroups, Mat. Metody Fiz.-Mekh. Polya 43 (2000), no. 2, 75-82, (in Ukrainian) (MR 1977836 (2004a:22001), Zbl 1052.54512).
  17. 2001:

  18. O. V. Gutik, and K. P. Pavlyk, The H-closedness of topological inverse semigroups and topological Brandt λ-extensions, XVI Open Scientific and Technical Conference of Young Scientists of the Karpenko Physico-Mechanical Institute of NASU. May 17-18, 2001. Lviv, Ukraine. Proceedings. (2001), 240-243.
  19. O. V. Gutik, and K. P. Pavlyk, Minimal topologies on semigroups of matrix units, International Scientific and Technical Conference "Information of processes of formation of open systems on basis DBMS, design computer-aided ...". June 26-28, 2001. Vologda, Russia. Proceedings. (2001), 301-305.
  20. T. O. Banakh, I. Yo. Guran, and O. V. Gutik, Free topological inverse semigroups, Mat. Stud.15 (2001), no. 1, 23-43 (MR 1871924 (2003e:20072), Zbl 0990.22001).
  21. O. V. Gutik, and K. P. Pavlyk, H-closed topological semigroups and topological Brandt λ-extensions, Mat. Metody Fiz.-Mekh. Polya 44 (2001), no. 3, 20-28, (in Ukrainian) (MR 1967909 (2004a:22002), Zbl 1098.22500).
  22. 2002:

  23. O. V. Gutik, M. Radjagopalan, and K. Sundaresan, Compact semilattices with open principal filters, J. Austral. Math. Soc. 72, 3 (2002), 349-362 (MR 1902205 (2003f:22005), Zbl 1024.22001).
  24. O. V. Gutik, and K. P. Pavlyk, Embedding of topological semigroups, Mat. Metody Fiz.-Mekh. Polya 45 (2002), no. 1, 90-96, (in Ukrainian) (MR 1967652 (2003m:22005), Zbl 1073.54017).
  25. I. Yo. Guran, and O. V. Gutik, The bicyclic semigroup and countably compact topological inverse semigroups, XVII Open Scientific and Technical Conference of Young Scientists of the Karpenko Physic and Mechanics Institute of NASU. May 15-17, 2002. Lviv, Ukraine. Proceedings. (2002), 149-152.
  26. T. O, Banach, and O. V. Gutik, On a counterpart of Franklin Theorem for topological semigroups, XVII Open Scientific and Technical Conference of Young Scientists of the Karpenko Physico-Mechanical Institute of NASU. May 15-17, 2002. Lviv, Ukraine. Proceedings. (2002), 153-155.
  27. 2003:

  28. O. Gutik, and K. Pavlyk, Topological Brandt λ-extensions of absolutely H-closed topological inverse semigroups, Visn. L'viv. Univ., Ser. Mekh.-Mat. 61 (2003), 98-105 (Zbl 1034.22003).
  29. O. V. Gutik, and O. Ye. Lebidko, On semigroup of compact subsets of a paratopological group, Applied Problems of Mech. and Math. 1 (2003), 20-24.
  30. 2004:

  31. O. V. Gutik, and K. P. Pavlyk, On 0-simple initially τ-compact topological inverse semigroups, Conference of Young Scientists on Modern Problems in Mechanics and Mathematics, Lviv, May 24-26, 2004. Proceedings, Lviv (2004) 179-181.
  32. T. O. Banakh, and O. V. Gutik, On the continuity of inversion in countably compact inverse topological semigroups, Semigroup Forum 68 (2004), no. 3, 411-418 (MR 2050899 (2005c:22005), Zbl 1052.22003).
  33. 2005:

  34. O. V. Gutik, and K. P. Pavlyk, Topological semigroups of matrix units, Algebra Discr. Math. no. 3 (2005), 1-17 (MR 2237891 (2007e:20125), Zbl 1092.22002).
  35. T. Banakh, O. V. Gutik, and M. Rajagopalan, Compatible algebraic structures on scattered compacta, Topology Appl., 153 (2005), no. 5-6, 710-723 (MR 2201483 (2006k:54048), Zbl 1087.22003).
  36. O. V. Gutik, Yu. M. Livach, Embediins of topological semigroups into nilpotent-generated semigroups, Mat. Metody Fiz.-Mekh. Polya 48 (2005), no. 4, 66-77 (in Ukrainian), (MR 2229292 (2007b:20122), Zbl 1110.20045).
  37. O. V. Gutik, and K. P. Pavlyk, On topological semigroups of matrix units, Semigroup Forum 71 (2005), no. 3, 389-400 (MR 2204758 (2006m:22003), Zbl 1092.22003).
  38. 2006:

  39. O. V. Gutik, and K. P. Pavlyk, On Brandt λ0-extensions of semigroups with zero, Mat. Metody Fiz.-Mekh. Polya 49 (2006), no. 3, 26-40 (MR 2255060 (2007i:22005), Zbl 1126.22301).
  40. 2007:

  41. I. Chuchman, and O. Gutik, On H-closed topological semigroups and semilattices, Algebra Discr. Math. (2007), no. 1, 13-23 (MR2367511 (2008j:22003), Zbl 1164.06332).
  42. O. Gutik, and D. Repovš, On 0-simple countably compact topological inverse semigroups, Semigroup Forum 75 (2007), no. 2, 464-469 (MR2350768 (2008g:22001), Zbl 1140.22001, arXiv:0804.1437).
  43. 2008:

  44. O. Gutik, and D. Repovš, On linearly ordered H-closed topological semilattices, Semigroup Forum 77 (2008), no. 3, 474-481 (MR2457332 (2009i:54063), Zbl 1166.22003, arXiv:0804.1438).
  45. 2009:

  46. O. Gutik, J. Lawson, and D. Repovš, Semigroup closures of finite rank symmetric inverse semigroups, Semigroup Forum 78 (2009), no. 2, 326-336 (MR2486644 (2010f:20066), Zbl 1165.22002, arXiv:0804.1439).
  47. T. Banakh, S. Dimitrova, and O. Gutik, The Rees-Suschkewitsch Theorem for simple topological semigroups, Mat. Stud. 31 (2009), no. 2, 211-218 (MR2643478 (2011c:22003), Zbl 1199.22004, arXiv:0811.1371).
  48. O. Gutik, D. Pagon, and D. Repovš, The continuity of the inversion and the structure of maximal subgroups in countably compact topological semigroups, Acta Math. Hungar. 124 (2009), no. 3, 201-214 (MR2525561 (2010d:22002), Zbl 1199.22001, arXiv:0807.3102).
  49. O. Gutik, K. Pavlyk, and A. Reiter, Topological semigroups of matrix units and countably compact Brandt λ0-extensions, Mat. Stud. 32 (2009), no. 2, 115-131 (MR2643488 (2011b:22002), Zbl 1224.22004, arXiv:0912.0051).
  50. O. V. Gutik, and A. R. Reiter, Symmetric inverse topological semigroups of finite rank ≤ n, Mat. Metody Fiz.-Mekh. Polya 52 (2009), no. 3, 7-14; reprinted version: J. Math. Sci. 171 (2010), no. 4, 425-432 (MR2676357 (2011e:22002), Zbl 1212.22003, arXiv:0912.0198).
  51. O. V. Gutik, and K. P. Pavlyk, Bruck-Reilly extension of a semitopological semigroups, Applied Problems of Mech. and Math. 7 (2009), 66-72.
  52. 2010:

  53. O. Gutik, and D. Repovš, On Brandt λ0-extensions of monoids with zero, Semigroup Forum 80 (2010), no. 1, 8-32 (MR2580607 (2011g:22007), Zbl 1201.20057, arXiv:0910.0535).
  54. O. Gutik, D. Pagon, and D. Repovš, On chains in H-closed topological pospaces, Order 27 (2010), no. 1, 69-81 (MR2601156 (2011a:54037), Zbl 1221.06021, arXiv:0804.1449).
  55. T. Berezovski, O. Gutik, and K. Pavlyk, Brandt extensions and primitive topological inverse semigroups, Int. J. Math. Math. Sci. 2010 (2010) Article ID 671401, 13 pages, doi:10.1155/2010/671401 (MR2600883 (2011d:22002), Zbl 1225.22005, arXiv:1005.4111).
  56. T. Banakh, S. Dimitrova, and O. Gutik, Embedding the bicyclic semigroup into countably compact topological semigroups, Topology Appl. 157 (2010), no. 18, 2803-2814 (MR2729339 (2012a:54028), Zbl 1217.22001, arXiv:0811.4276).
  57. I. Chuchman, and O. Gutik, Topological monoids of almost monotone, injective cofinite partial selfmaps of positive integers, Carpathian Math. Publ. 2 (2010), no. 1, 119-132 (arXiv:1006.4873).
  58. O. Gutik, and A. Reiter, On semitopological symmetric inverse semigroups of a bounded finite rank, Visn. L'viv. Univ., Ser. Mekh.-Mat. 72 (2010), 94-106 (in Ukrainian) (Zbl 1240.22003).
  59. 2011:

  60. O. V. Gutik, K. P. Pavlyk, and A. R. Reiter, On topological Brandt semigroups, Mat. Metody Fiz.-Mekh. Polya 54 (2011), no. 2, 7-16 (in Ukrainian); English version in: J. Math. Sci. 184 (2012), no. 1, 1-11 (MR2893525 (2012m:22002), Zbl 1274.22003).
  61. O. Gutik, and D. Repovš, Topological monoids of monotone injective partial selfmaps of with cofinite domain and image, Stud. Sci. Math. Hung. 48 (2011), no. 3, 342-353 (MR2883245, Zbl 1265.22002, arXiv:1108.2848).
  62. I. Chuchman, and O. Gutik, On monoids of injective partial selfmaps almost everywhere the identity, Demonstr. Math. 44 (2011), no. 4, 699-722 (MR2906425 (2012k:22002), Zbl 1252.22002, arXiv:1009.1338).
  63. O. Gutik, D. Pagon, and K. Pavlyk, Congruences on bicyclic extensions of a linearly ordered group, Acta Comment. Univ. Tartu. Math. 15 (2011), no. 2, 61-80 (MR2961689, Zbl 1257.20059, arXiv:1111.2401).
  64. I. Guran, O. Gutik, O. Ravsky, and I. Chuchman, On symmetric topologiacl semigroups and groups, Visn. L'viv. Univ., Ser. Mekh.-Mat. 74 (2011), 61-73 (in Ukrainian) (Zbl 1249.22002).
  65. I. Fihel, and O. Gutik, On the closure of the extended bicyclic semigroup, Carpathian Math. Publ. 3 (2011), no. 2, 131-157 (arXiv:1201.0090).
  66. O. Gutik, and I. Figel', Embedding topological semigroups into idempotent generated topological semigroups, Visn. L'viv. Univ., Ser. Mekh.-Mat. 75 (2011), 106-114 (in Ukrainian) (Zbl 1265.22001).
  67. 2012:

  68. T. Banakh, O. Gutik, O. Potiatynnyk, and A. Ravsky, Metrizability of Clifford topological semigroups, Semigroup Forum 84 (2012), no. 2, 301-307 (MR2898762, Zbl 1250.22002, arXiv:1105.2806).
  69. O. Gutik, and D. Repovš, On monoids of injective partial selfmaps of integers with cofinite domains and images, Georgian Math. J. 19 (2012), no. 3, 511-532 (MR2984503, Zbl 1256.22001, arXiv:1209.0587).
  70. S. Bardyla, and O. Gutik, On ℋ-complete topological semilattices, Mat. Stud. 38 (2012), no. 2, 118-123 (MR3057997, Zbl 1309.22003, arXiv:1301.1152).
  71. I. Fihel, O. Gutik, and K. Pavlyk, On a topological simple Warne extension of a semigroup, Acta Comment. Univ. Tartu. Math. 16 (2012), no. 2, 201-225 (MR3007298, Zbl 1295.22005, arXiv:1301.1232).
  72. 2013:

  73. O. V. Gutik, and K. P. Pavlyk, Pseudocompact primitive topological inverse semigroups, Mat. Metody Fiz.-Mekh. Polya 56 (2013), no. 2, 7-19; reprinted version: J. Math. Sci. 203 (2014), no. 1, 1-15 (MR3155884, Zbl 1313.18002, arXiv:1306.2612).
  74. O. Gutik, and K. Pavlyk, On pseudocompact topological Brandt λ0-extensions of semitopological monoids, Topol. Algebra Appl. 1 (2013), 60-79 (Zbl 1291.22003, arXiv:1306.1935).
  75. 2014:

  76. O. Gutik, and I. Pozdnyakova, On monoids of monotone injective partial selfmaps of Ln×lexwith cofinite domains and images, Algebra Discr. Math. 17 (2014), no. 2, 256279 (MR3287933, Zbl 1327.22003, arXiv:1311.6175).
  77. O. Gutik, On closures in semitopological inverse semigroups with continuous inversion, Algebra Discr. Math. 18 (2014), no. 1, 5985 (MR3280257, Zbl 1315.22004, arXiv:1410.1344).
  78. O. V. Gutik, and I. V. Pozdniakova, Congruences on the monoid of monotone injective partial selfmaps of Ln×lexℤ with co-finite domains and images, Mat. Metody Fiz.-Mekh. Polya 57 (2014), no. 3, 7-15; reprinted version: J. Math. Sci. 217 (2016), no. 2, 139-148 (MR3379583, MR3532451, Zbl 1342.20058, arXiv:1407.6892).
  79. 2015:

  80. O. Gutik, and O. Ravsky, On feebly compact inverse primitive (semi)topological semigroups, Mat. Stud. 44 (2015), no.1, 3-26 (MR3494696, Zbl 1356.22002, arXiv:1310.4313).
  81. O. Gutik, and D. Repovš, On monoids of injective partial cofinite selfmaps, Math. Slovaca 65 (2015), no. 5, 981-992 (MR3433049, Zbl 1363.20058, arXiv:1512.03779).
  82. O. V. Gutik, and O. V. Ravsky, Pseudocompactness, products and Brandt λ0-extensions of semitopological monoids, Mat. Metody Fiz.-Mekh. Polya 58 (2015), no. 2, 20-37; reprinted version: J. Math. Sci. 223 (2017), no. 1, 18-38 (MR3640275, Zbl 1349.22003, arXiv:1510.05096).
  83. O. Gutik, On the dichotomy of a locally compact semitopological bicyclic monoid with adjoined zero, Visn. L'viv. Univ., Ser. Mekh.-Mat. 80 (2015), 33-41 (arXiv:1509.02148).
  84. O. Gutik, and K. Mel'nyk, The semigroup of monotone co-finite partial homeomorphisms of the real line, Mathematical Bulletin of the Shevchenko Scientific Society 12 (2015), 24-40 (in Ukrainian) (Zbl 1363.20057).
  85. 2016:

  86. S. Bardyla, and O. Gutik, On a semitopological polycyclic monoid, Algebra Discr. Math. 21 (2016), no. 2, 163-183 (MR3537444, Zbl 1359.22003, arXiv:1601.01151).
  87. O. Gutik, On the group of automorphisms of the Brandt λ0-extension of a monoid with zero, Proceedings of the 16th ITAT Conference Information Technologies - Applications and Theory (ITAT 2016), Tatranske Matliare, Slovakia, September 15-19, 2016. CEUR-WS, Btatislava, 2016, p. 237-240 (arXiv:1609.06085).
  88. S. Bardyla, and O. Gutik, On a complete topological inverse polycyclic monoid, Carpathian Math. Publ. 8 (2016), no. 2, 183-194 (doi: 10.15330/cmp.8.2.183-194, MR3599777, Zbl 1359.22002, arXiv:1603.08147).
  89. O. Gutik, Topological properties of Taimanov semigroups, Mathematical Bulletin of the Shevchenko Scientific Society 13 (2016), 29-34 (arXiv:1612.08677).
  90. O. Gutik, and I. Pozdniakova, On the monoid of monotone injective partial selfmaps of 2 with co-finite domains and images, Visn. L'viv. Univ., Ser. Mekh.-Mat. 81 (2016), 100-116 (arXiv:1602.06593).
  91. O. Gutik, and O. Sobol, On feebly compact topologies on the semilattice expnλ, Mat. Stud. 46 (2016), no. 1, 29-43 (MR3649046, arXiv:1606.00395).
  92. O. Gutik, and K. Maksymyk, On semitopological interassociates of the bicyclic monoid, Visn. L'viv. Univ., Ser. Mekh.-Mat. 82 (2016), 98-108 (arXiv:1609.07768).
  93. O. Gutik, and I. Pozdniakova, On the monoid of monotone injective partial selfmaps of 2 with co-finite domains and images, II, Visn. L'viv. Univ., Ser. Mekh.-Mat. 82 (2016), 109-127 (arXiv:1701.08015).
  94. O. Gutik, and O. Sobol, On feebly compact shift-continuous topologies on the semilattice expnλ, Visn. L'viv. Univ., Ser. Mekh.-Mat. 82 (2016), 128-136 (arXiv:1702.06105).
  95. 2017:

  96. S. Bardyla, O. Gutik, and A. Ravsky, H-closed quasitopological groups, Topology Appl. 217 (2017), 51-58 (MR3591199, Zbl 1354.22002, arXiv:1506.08320).

Papers in Press or in Preparation

  1. O. Gutik, and K. Maksymyk, On semitopological bicyclic extensions of linearly ordered groups, Mat. Metody Fiz.-Mekh. Polya (submitted) (arXiv:1608.00959).
  2. O. Gutik, and A. Savchuk, On the semigroup ID, Visn. L'viv. Univ., Ser. Mekh.-Mat. (submitted).
  3. O. Gutik, On locally compact semitopological 0-bisimple inverse ω-semigroups, Preprint (arXiv:1703.01434).
  4. O. Gutik, On feebly compact semitopological symmetric inverse semigroups of a bounded finite rank, Preprint (arXiv:1708.02064).
  5. O. Gutik, and D. Repovš, On embedding of topological semigroups into countably compact topological semigroups, Preprint.
  6. M. Cencelj, O. Gutik, and D. Repovš, On some generalization of the bicyclic semigroup: the topological version, Preprint.
  7. M. Cencelj, O. Gutik, and D. Repovš, On ℋ-closed pospaces with compact maximal anti-chains, Preprint.
  8. O. Gutik, and O. Ravskyi, On sequentially pseudocompact and pracompact spaces, Preprint.
  9. O. Gutik, and O. Sobol, Extensions of semigroups by symmetric inverse semigroups of a bounded finite rank, Preprint.
  10. O. Gutik, and K. Mel'nyk, Congruences on the semigroup of monotone co-finite partial homeomorphisms of the real line, Preprint (in Ukrainian).
  11. O. Gutik, and A. Savchuk, On the monoid of monotone injective partial selfmaps of ×ℕ with co-finite domains and images, (in preparation).
  12. O. Gutik, and A. Savchuk, On the monoid of partial automorphisms of the infinite path with the root with co-finite domains and images, (in preparation).
  13. O. Gutik, and T. Mokrytskyi, On the semigroup of order isomorphisms of principal filters of a power of the integers, Preprint.

Abstracts of Conference Reports

  1. O. V. Gutik, On embeddings of topological semigroups into simple semigroups, V Accounting Conference of Ukrainian Academy of Printing, Lviv, January 3-5, 1995. Abstracts of Reports. Lviv, Ukrainian Academy of Printing, 1995, P. 122 (in Ukrainian).
  2. O. V. Gutik, On an embedding of a topological semigroup into a path-connected topological semigroup, IV International Scientific Conference in Honor of Academician M. Kravchuk. Abstracts of Reports. Kyiv, 1995, P. 83 (in Russian).
  3. O. V. Gutik, On analoques of Ponomarev Theorem and Franklin Theorwm in the category of topological semigroups, V International Scientific Conference in Honor of Academician M. Kravchuk. Abstracts of Reports. Kyiv, 1996, P. 112 (in Russian).
  4. O. V. Gutik, On topological inverse semigroups with restrictions on translations , International Algebraic Conference Dedicated to the Memory of Professor L. M. Gluskin. Slovyansk, August 25-29, 1997. Abstracts of Reports. Kyiv, 1997, P. 30-31.
  5. O. V. Gutik, Embeddings of countable topological semigroups, International Scientific Conference ``Modern Problems of Mechanics and Mathematics'' Dedicated to the 70th Anniversary of Academician Ya. S. Pidstryhach. Lviv, May 25-28, 1998. Materials. Lviv, 1998, P. 260-261.
  6. T. O. Banakh, I. Yo. Guran, and O. V. Gutik, Free topological inverse semigroups, International Scientific Conference "Modern Problems of Mathematics", Chernivtsi, June 25-30, 1998. Proceedings. Chernivtsi-Kyiv. (1998), 21-24.
  7. O. V. Gutik, Topological inverse semigroups with some restrictions on translations, II International Algebraic Conference in Ukraine Dedicated to the Memory of Professor L. A. Kalujnin. Vinnytsya-Kyiv, May 9-16, 1999. Materials. Vinnytsya, 1999, P. 18-19.
  8. O. V. Gutik, Compact semilattices with open principal filters, International Conference ``Semigroups: the Theory and Applications'' in Honor of Professor E. S. Lyapin. St.-Petersburg, June 2-9, 1999. Abstracts of Reports. St.-Petersburg, 1999, P. 83.
  9. O. V. Gutik, On some class f topological pospaces, International Conference "Nonlinear Partial Differential Equations" dedicated to J. P. Schauder. Lviv, August 23-29, 1999. Abstracts. Lviv, 1999, P. 83.
  10. O. V. Gutik, and K. P. Pavlyk The H-closedness of topological inverse semigroups and topological Brandt λ-extensions, XVI Open Scientific and Technical Conference of Young Scien-tists and Specialists of the Karpenko Physico-Mechanical Institute of NASU. Lviv, May 16-18, 2001. Abstracts. Lviv, 2001, P. 71.
  11. I. Yo. Guran, and O. V. Gutik, The development of Lviv School on topological semigroups, Conference "Scientific Readings Dedicated to the Memory of Academician Ya. S. Pidstryhach" of the Institute for Applied Problems of Mechanics and Mathematics, National Academy of Sciences of Ukraine. Lviv, May 28-29, 2001. Abstracts of Reports. Lviv, 2001, P. 6.
  12. O. V. Gutik, and O. Ye. Lebidko, On the semigroup of compact subsets of a paratopological group, Conference "Scientific Readings Dedicated to the Memory of Academician Ya. S. Pidstryhach" of the Institute for Applied Problems of Mechanics and Mathematics, National Academy of Sciences of Ukraine. Lviv, May 28-29, 2001. Abstracts of Reports. Lviv, 2001, P. 6-8.
  13. T. O. Banakh, and O. V. Gutik, An example of a scattered compactum admitting no continuous semilattice operation, Third International Algebraic Conference in Ukraine. Sumy, July 2-8, 2001. Proceedings. Sumy, 2001, P. 13-14.
  14. O. V. Gutik, and K. P. Pavlyk, On topological semigroups of matrix units, Third International Algebraic Conference in Ukraine. Sumy, July 2-8, 2001. Proceedings. (2001), 42-45.
  15. O. V. Gutik, On homomorphisms of topological cancellative semigroups, Ukrainian Mathematical Congress-2001. Section 1: Algebra and Number Theory. Kyiv, August 21-23, 2001. Abstracts of Reports. Kyiv, 2001, P. 21.
  16. O. V. Gutik, and K. P. Pavlyk On homomorphisms of topological semigroups of matrix units, International Conference ``Differential Equations and Non-Linear Oscilations''. Chernivtsi, August 27-29, 2001. Abstracts of Reports. Kyiv, 2001, P. 183.
  17. O. V. Gutik, and K. P. Pavlyk, H-closed topological semigroups and topological Brandt λ-extensions, International Algebraic Conference. Uzhgorod, August 27-29, 2001. Abstracts of Reports. Uzhgorod, 2001, P. 13.
  18. O. V. Gutik, On topological Brandt λ-extensions of topological semigroups, Conference "Scientific Readings Dedicated to the Memory of Academician Ya. S. Pidstryhach" of the Institute for Applied Problems of Mechanics and Mathematics, National Academy of Sciences of Ukraine. Lviv, May 23-24, 2002. Abstracts of Reports. Lviv, 2002, P. 5-6.
  19. T. O. Banakh, and O. V. Gutik, On the continuity of the inversion in countably compact inverse topological semigroups, International Conference on Functional Analysis and its Applications. Dedicated to the 110th anniversary of Stefan Banach. Lviv, Ukraine, May, 28-31, 2002. Book of Abstracts. Lviv, 2002, P. 25-26.
  20. O. V. Gutik, and K. P. Pavlyk, Topological Brandt λ-extensions of absolutely H-closed topological inverse semigroups, International Algebraic Conference Dedicated to the Memory of Z. I. Borevich, St.-Petersburg, Russia. Proceedings.(2002), 99-103.
  21. O. V. Gutik, and K. P. Pavlyk, On H-closed topological semigroups and Brandt λ-extensions, International Mathematical Conference Honoring D. A. Grave's 100th Year Since the Begining of His Work at Kyiv University. Kyiv, June 17-22, 2002. Kyiv, 2002, P. 29-30.
  22. O. V. Gutik, and Yu. Livach, Embeddings of semigroups into nilpotent-generated semigroups, IV International Scientific Conference "Mathematical Problems of the Mechanics of Non-Homogeneous Structures". Lviv, May 26-29, 2003. Proceedings. Lviv, 2003, P. 487-488.
  23. O. V. Gutik, and K. P. Pavlyk, Topological Brandt λ0-extensions of topological semigroups with zero, IV International Scientific Conference "Mathematical Problems of the Mechanics of Non-Homogeneous Structures". Lviv, May 26-29, 2003. Proceedings. Lviv, 2003, P. 489-490.
  24. O. V. Gutik, and K. P. Pavlyk, On H-closed topological semigroups and Brandt λ0-extensions, International Conference "Complex Analysis and its Applications". Lviv, May 26-29, 2003. Abstracts. Lviv, 2003, P. 29-30.
  25. T. O. Banakh, O. V. Gutik, and M. Rajagopalan, Compatible algebraic structures on scattered compacta, V Iberoamerican Conference on General Topology and its Applications. CITA-2003. Lorca, June 10-14, 2003. Lorca, 2003, P. 61.
  26. O. V. Gutik, On H-closed topological semigroups, First Summer School on Topological Algebra and Functional Analysis. Lviv-Kozeva, July 22-31, 2003. Lviv, 2003, P. 23-24.
  27. T. Banakh, O. Gutik, and M. Rajagopalan, Compatible algebraic structures on scattered compacta, IV International Algebraic Conference in Ukraine. Lviv, August 4-9, 2003. Abstracts. Lviv, 2003, P. 29-30.
  28. O. V. Gutik, and K. P. Pavlyk, On Brandt λ0-extensions of semigroups with zero, IV International Algebraic Conference in Ukraine. Lviv, August 4-9, 2003. Abstracts. Lviv, 2003, P. 88-89.
  29. O. V. Gutik, On some topological version of the Rees Quotient Theorem , International Conference "6th Bogolyubov Readings". Chernivts, August 26-30, 2003. Abstracts of Reports. Kyiv, 2003, P. 280.
  30. O. V. Gutik, and Yu. M. Livach, Embeddings of topological semigroups , Conference of Young Scientists on Modern Problems in Mechanics and Mathematics. Lviv, May 24-26, 2004. Abstracts of Reports. Lviv, 2004, P. 65-66 (in Ukrainian).
  31. O. V. Gutik, and K. P. Pavlyk, Compact congruence-free topological semigroups, International Conference "Geometric Topology: Infinite-Dimensional Topology, Absolute Extensors, Applications". Lviv, May 26-30, 2004. Book of Abstracts. Lviv, 2004, P. 24-26.
  32. O. Gutik, and K. Pavlyk, On compact congruence-free topological inverse semigroups, International Conference dedicated to the 125-th anniversary of Hans Hahn. Chernivtsi. June 27-July 3, 2004. Book of Abstracts. Chernivtsi, 2004, P. 128-130.
  33. O. V. Gutik, Topological inverse semigroups, Second Summer School in Algebra and Topology. Lviv-Dolyna, August 2-14, 2004. Programs of Invited Lectures and Abstracts of Research Reports. Lviv, 2004, P. 6.
  34. O. V. Gutik, On linearly ordered H-closed topological semilattices, Conference of Young Scientists on Modern Problems in Mechanics and Mathematics. Lviv, May 24-27, 2005. Abstracts of Reports. Lviv, 2005, P. 245-246.
  35. O. V. Gutik, and K. Pavlyk, On compact semitopological semigroups of matrix units, Conference of Young Scientists on Modern Problems in Mechanics and Mathematics. Lviv, May 24-27, 2005. Abstracts of Reports. Lviv, 2005, P. 247-248.
  36. O. V. Gutik, On H-closed topological semilattices, Fifth International Algebraic Conference in Ukraine. Odessa, July 20-27, 2005. Abstracts. Odessa, 2005. P. 82.
  37. O. V. Gutik, and K. P. Pavlyk, On absolutely H-closed topological semigroups and Brandt λ0-extensions, Fifth International Algebraic Conference in Ukraine. Odessa, July 20-27, 2005. Abstracts. Odessa, 2005. P. 83-84.
  38. O. Gutik, and K. Pavlyk, Pseudo-compact semitopological semigroups of matrix units, Third Summer School in Algebra, Analysis and Topology. Lviv-Kozyova, August 9-20, 2005. Invited Lectures and Abstracts of Research Reports. Lviv, 2005. P. 137-139.
  39. O. V. Gutik, and V. Ye. Melnyk, On homomorphisms of cancellative topological semigroups, Fourth Summer School Algebra, Topology, Functional and Stochastic Analysis, Lviv-Kozyova July 17-29, 2006. Invited Lectures and Abstracts of Research Reports, Lviv, 2006, C. 139.
  40. O. V. Gutik, and K. P. Pavlyk, On Brandt λ0-extensions of topological semigroups with zero, Fourth Summer School Algebra, Topology, Functional and Stochastic Analysis, Lviv-Kozyova July 17-29, 2006. Invited Lectures and Abstracts of Research Reports, Lviv, 2006, C. 139-142.
  41. I. Chuchman, and O. Gutik, H-closed topological semigroups and semilattices, 6th International Algebraic Conference in Ukraine. Kamyanets-Podilsky, July 1-7, 2007. Abstracts. Kamyanets-Podilsky, 2007, P. 49-51.
  42. O. Gutik, and K. Pavlyk, Brandt λ0-extensions and H-closed topological semigroups, 6th International Algebraic Conference in Ukraine. Kamyanets-Podilsky, July 1-7, 2007. Abstracts. Kamyanets-Podilsky, 2007, P. 88-90.
  43. O. Gutik, and D. Repovš, On countably compact 0-simple topological inverse semigroups, 6th International Algebraic Conference in Ukraine. Kamyanets-Podilsky, July 1-7, 2007. Abstracts. Kamyanets-Podilsky, 2007, P. 90-92.
  44. O. Gutik, and I. Chuchman, On H-closed topological semilattices, Conference on Algorithmic Complexity and Universal Algebra. Dedicated to 75th birthday of Bela Csakany. Szeged, Hungary, July 16-20, 2007. Abstracts. Bolyai Institute, University of Szeged, 2007, P. 5-6.
  45. O. Gutik, and A. Reiter, On countably compact Frechet-Urysohn coungruence-free topological semigroups, Fifth Summer School ''Algebra, Topology and Analysis''. Lviv-Kozyova, August 6-18, 2007. Invited Lectures and Abstracts of Research Reports, Lviv, 2007, C. 40-41.
  46. O. Gutik, and A. Reiter, On Brandt λ-μ-extensions of semigroups, International Conference Modern Problems in Mechanics and Mathematics. Lviv, May, 25-29, 2008. Preceedings. In 3 volumes. Vol. 3. Lviv, 2008, P. 212-214.
  47. O. Gutik, and D. Repovš, On linearly ordered H-closed topological semilattices, International Conference Analysis and Topology. Lviv, June 2-7, 2008. Abstracts. Part II. Topology. Lviv, 2008, P. 26-27.
  48. K. Pavlyk, and O. Gutik, Countably compact primitive topological inverse semigrous, International Conference Analysis and Topology. Lviv, June 2-7, 2008. Abstracts. Part II. Topology. Lviv, 2008, P. 48-49.
  49. A. Reiter, and O. Gutik, On a topological semigrou finite transformations of a Hausdorff topological space, International Conference Analysis and Topology. Lviv, June 2-7, 2008. Abstracts. Part II. Topology. Lviv, 2008, P. 59-60.
  50. O. Gutik, and K. Pavlyk, Brandt extensions and primitive topological inverse semigroupss, Conference of Young Scientists on Modern Problems in Mechanics and Mathematics dedicated to Academician Ya. S. Pidstrygach, Lviv, May 25-27, 2009. Abstracts of Reports, Lviv (2009) 191-193.
  51. O. Gutik, and A. Reiter, Topological finite symmetric inverse semigroups, Conference of Young Scientists on Modern Problems in Mechanics and Mathematics dedicated to Academician Ya. S. Pidstrygach, Lviv, May 25-27, 2009. Abstracts of Reports, Lviv (2009) 193-194.
  52. O. Gutik, D. Pagon, and D. Repovš, The continuity of the inversion and the structure of maximal subgroups in countably compact topological semigroups, International Conference Infinite Dimensional Analysis And Topology, May 27-June 1, 2009, Ivano-Frankivsk. Abstracts of Reports. Ivano-Frankivsk, 2009. P. 52-55.
  53. O. Gutik, and K. Pavlyk, On countably compact Brandt $\lambda^0$-extensions of topological semigroups, International Conference Infinite Dimensional Analysis And Topology, May 27-June 1, 2009, Ivano-Frankivsk. Abstracts of Reports. Ivano-Frankivsk, 2009. P. 55-58.
  54. O. Gutik, and A. Reiter, On embeddings and the H-closedness of topological semigroups of partial finite bijections, International Conference "Infinite Dimensional Analysis And Topology", May 27-June 1, 2009, Ivano-Frankivsk. Abstracts of Reports. Ivano-Frankivsk, 2009. P. 58-61.
  55. O. Gutik, and A. Reiter, On absolute H-closedness of topological semigroups of partial finite bijections, International Conference dedicated to 100th Anniversary of M. M. Bogolyubov and 70th Annivesary of M. I. Nagnybida, June 8-13, 2009, Chernivtsi. Abstracts of Reports. Chernivtsi, 2009. P. 235-236.
  56. T. Banakh, S. Dimitrova, and O. Gutik, The Rees-Suschkewitsch Theorem for simple topological semigroups, 7th Algebraic Conference in Ukraine, 18-23 August, 2009. Kharkov. Abstract of Talks. Kharkov, 2009, P. 18-20.
  57. O. Gutik, J. Lawson, and D. Repovš, Semigroup closures of finite rank symmetric inverse semigroups, 7th Algebraic Conference in Ukraine, 18-23 August, 2009. Kharkov. Abstract of Talks. Kharkov, 2009, P. 63-64.
  58. K. Pavlyk, O. Gutik, and A. Reiter, On topological semigroups of matrix units, The 14th general meeting of EWM, August 25-28, 2009, Novi Sad, Serbia. Book of Abstracts 2. Novi Sad, 2009. http://ewm2009.files.wordpress.com/2009/08/abstracts26.pdf.
  59. O. Gutik, D. Pagon, and D. Repovš, On sequential countably compact topological semigroups, Ukrainian Mathematical Congress - 2009, Kyiv, Institute of Mathematics of NASU, August 27-29, 2009. http://www.imath.kiev.ua/~congress2009/Abstracts/Gutik.pdf.
  60. O. V. Gutik, and K. P. Pavlyk, On pseudocompact topological inverse Brandt semigroups, Pidstryhach Conference 2010, May 25-26, 2010, Lviv, http://www.iapmm.lviv.ua/chyt2010/materials/pc2010-02-GP-07.pdf.
  61. O. V. Gutik, and A. R. Reiter, On semitopological symmetric inverse semigroups of a bounded finite rank, Pidstryhach Conference 2010, May 25-26, 2010, Lviv, http://www.iapmm.lviv.ua/chyt2010/materials/pc2010-02-GR-08.pdf.
  62. O. V. Gutik, and I. Figel', On embedings of topological semigroups into idempotent-generated semigroups, Pidstryhach Conference 2010, May 25-26, 2010, Lviv, http://www.iapmm.lviv.ua/chyt2010/materials/pc2010-02-GF-09.pdf.
  63. I. Ya. Chuchman, and O. V. Gutik, Topological monoids of almost monotone injective cofinite partial selfmaps of positive integers, Pidstryhach Conference 2010, May 25-26, 2010, Lviv, http://www.iapmm.lviv.ua/chyt2010/materials/pc2010-02-CG-38.pdf.
  64. I. Chuchman, and O. Gutik, Topological monoids of almost monotone injective cofinite partial selfmaps of positive integers, Conference on complex analysis dedicated to the memory of A. A. Goldberg (1930-2008). Lviv, Ukraine, May 31-June 5, 2010. Abstracts. Lviv, 2010, P. 8-9.
  65. O. Gutik, and D. Repovš, Brandt λ0-extensions of monoids with zero, AAA80 Workshop on General Algebra in connection with the Workshop on Non-Classical Algebraic Structures, June 1-6, 2010, Bedlewo, Poland. Abstracts. Warsaw, 2010. P. 79-82, http://www.mini.pw.edu.pl/aaa80/abstractsaaa80/19.pdf.
  66. O. Gutik, and K. Pavlyk, On some semigroup constructions, AAA80 Workshop on General Algebra in connection with the Workshop on Non-Classical Algebraic Structures, June 1-6, 2010, Bedlewo, Poland. Abstracts. Warsaw, 2010. P. 139, http://www.mini.pw.edu.pl/aaa80/abstractsaaa80/37.pdf.
  67. I. Chuchman, and O. Gutik, Topological inverse monoids of almost monotone injective co-finite partial selfmaps of positive integers, Summer School Algebra, Analysis and Topology, 5 July-16 July, 2010, Verkhovyna. Ivano-Frankivsk, 2010, P. 13-15.
  68. O. Gutik, and A. Reiter, On semitopological inverse semigroups of a bounded finite rank, Summer School Algebra, Analysis and Topology, 5 July-16 July, 2010, Verkhovyna. Ivano-Frankivsk, 2010, P. 16-18.
  69. I. Chuchman, and O. Gutik, On monoids of almost identity injective partial selfmaps, International Conference "Modern Problems of Analysis". Dedicated to 70th Anniversary of the Chair of Mathematical Analysis at Chernivtsi University, 30 September-3 October, 2010, Chernivtsi. Abstracts of Reports, Chernivtsi, 2010, P. 156-157.
  70. O. Gutik, On chains in ℋ-closed pospaces, International Conference "Modern Problems of Analysis". Dedicated to 70th Anniversary of the Chair of Mathematical Analysis at Chernivtsi University, 30 September-3 October, 2010, Chernivtsi. Abstracts of Reports, Chernivtsi, 2010, P. 162-164.
  71. I. Chuchman, and O. Gutik, On Bohr compactifications of some topological semigroups, International Conference on Functional Analysis Dedicated to 90th Anniversary of V. E. Lyantse, L'viv, Ukraine, November 17-21, 2010. L'viv, 2010, P. 32-33.
  72. O. Gutik, Continuity of the inversion and closures of subsemigroups in topological semigroups, International Conference on Functional Analysis Dedicated to 90th Anniversary of V. E. Lyantse, L'viv, Ukraine, November 17-21, 2010. L'viv, 2010, P. 42.
  73. O. Gutik, K. Pavlyk, and A. Reiter, On complete Brandt λ0-extensions of topological semigroups, International Conference on Functional Analysis Dedicated to 90th Anniversary of V. E. Lyantse, L'viv, Ukraine, November 17-21, 2010. L'viv, 2010, P. 43-44.
  74. O. Gutik, and K. Pavlyk, On semigroups generated by partial translations of a positive cone of a linearly ordered group, IV Conference of Young Scientists on Modern Problems in Mechanics and Mathematics dedicated to Academician Ya. S. Pidstrygach, Lviv, May 24-27, 2011. Abstracts of Reports, Lviv, 2011, P. 261-262.
  75. O. Gutik, On semigroups of (almost) monotone injective partial selfmaps of integers with cofinite domains and images, 8th International Algebraic Conference in Ukraine dedicated to the 60th anniversary of Prof. V. M. Usenko, Luhansk, July 5-12, 2011. Book of Abtracts. Luhansk, 2011, P. 255.
  76. I. Figel', and O. Gutik, On a topological semigroup CZ, 8th Summer School "Algebra, Analysis, Topology and Applications", Lazurne, Kherson Region, July 5-15, 2011. Book of Abtracts. Kherson, 2011, P. 13-14.
  77. O. Gutik, On a semigroup of injective partial cofinite selfmaps, 8th Summer School "Algebra, Analysis, Topology and Applications", Lazurne, Kherson Region, July 5-15, 2011. Book of Abtracts. Kherson, 2011, P. 16-17.
  78. O. Gutik, and K. Pavlyk, Congruences on bicyclic extensions of linearly ordered groups, 8th Summer School "Algebra, Analysis, Topology and Applications", Lazurne, Kherson Region, July 5-15, 2011. Book of Abtracts. Kherson, 2011, P. 17-18.
  79. O. Gutik, On embedding of a topological semigroup into a countably compact topological semigroup, Workshop on Semigroups (To remember John M. Howie on the occasion of his 76th birthday) , Lisboa, Portugal, May 23-25, 2012. Abtracts. Lisboa, 2012, P. 38-40.
  80. O. Gutik, On ℋ-complete topological semilattices, Conference Semigroups and Applications , August 29-September 2, 2012, Uppsala University, Uppsala, Sweden. Abstracts. 2012, P. 11.
  81. S. Bardyla, and O. Gutik, An example of an ℋ-complete topological semilattice which is not Aℋcomplete, International Conference dedicated to the 120th anniversary of Stefan Banach, September 17-21, 2012, Lviv, Ukraine, Abstracts of Reports. Lviv, 2012, P. 76.
  82. O. Gutik, On some generalization of the bicyclic semigroup: the topological version, International Conference dedicated to the 120th anniversary of Stefan Banach, September 17-21, 2012, Lviv, Ukraine, Abstracts of Reports. Lviv, 2012, P. 84.
  83. K. Pavlyk, and O. Gutik, On categories of pseudocompact topological Brandt λ0-extensions of semitopological semigroups, International Conference dedicated to the 120th anniversary of Stefan Banach, September 17-21, 2012, Lviv, Ukraine, Abstracts of Reports. Lviv, 2012, P. 102-103.
  84. S. Bardyla, and O. Gutik, On ℋ-complete topological semilattices, 9th International Algebraic Conference in Ukraine, July 8-13, 2013, L'viv, Ukraine. Book of abstracts. Lviv, 2013, P. 20.
  85. O. Gutik, On ℋ-complete topological pospaces, 9th International Algebraic Conference in Ukraine, July 8-13, 2013, L'viv, Ukraine. Book of abstracts. L'viv, 2013, P. 72.
  86. O. Gutik, and K. Pavlyk, On pseudocompact primitive topological inverse semigroups, 9th International Algebraic Conference in Ukraine, July 8-13, 2013, L'viv, Ukraine. Book of abstracts. L'viv, 2013, P. 73.
  87. O. Gutik, and I. Pozdnyakova, On the semigroup of monotone co-finite partial bijections of ℕ 2, 9th International Algebraic Conference in Ukraine, July 8-13, 2013, L'viv, Ukraine. Book of abstracts. L'viv, 2013, P. 74.
  88. O. Gutik, Pseudocompact inverse primitive (semi)topological semigroups, Topological Winter School in Abstract Analysis. Section Set Theory & Topology, 25 January 1 February 2014, Hejnice, Chech Republic, http://www.winterschool.eu/program-2014.
  89. O. Gutik, and O. Ravskyi, On sequentially pseudocompact and pracompact space, IV International Hahn Conference, Chernivtsi, June 30 July 5, 2014. Abstracts of Reports. Chernivtsi, 2014, P. 228-229.
  90. K. Chepil, and O. Gutik, On the semigroup of all monotone co-finite partial homeomorphisms of the real line, The International Algebraic Conference dedicated to 100th anniversary of L. A. Kaluzhnin, Kyiv, July 7-12, 2014. Abstracts of Reports. Kyiv, 2014, P. 96.
  91. O. Gutik, Groups of automorphisms of Brandt λ0-extensions of monoids with zero, The International Algebraic Conference dedicated to 100th anniversary of L. A. Kaluzhnin, Kyiv, July 7-12, 2014. Abstracts of Reports. Kyiv, 2014, P. 97.
  92. O. Gutik, and I. Pozdnyakova, Congruences on the monoid of monotone injective partial selfmaps of Lnxlexℤ with co-finite domains and images, IXth Summer Schooll "Algebra, Topology, and Analysis", July 7-18, 2014, Polianytsia, Ukraine. Book of abstracts. Ivano-Frankivs'k, 2014, P. 4-5.
  93. O. Gutik, and O. Ravskyi, Pseudocompactness, products and Brandt λ0-extensions of semitopological monoids, IXth Summer Schooll "Algebra, Topology, and Analysis", July 7-18, 2014, Polianytsia, Ukraine. Book of abstracts. Ivano-Frankivs'k, 2014, P. 5-6.
  94. S. Bardyla, and O. Gutik, On a semitopological λ-polycyclic monoid, Scientific Conference Dedicated to 100 Anniversary of Birthdays of K. M. Fishman and M. K. Fague, July 1-4, 2015, Chernivtsi, Ukraine. Book of abstracts. Chernivtsi, 2015, P. 134-135.
  95. O. Gutik, H-closed pospaces and semitopological semilattices, Scientific Conference Dedicated to 100 Anniversary of Birthdays of K. M. Fishman and M. K. Fague, July 1-4, 2015, Chernivtsi, Ukraine. Book of abstracts. Chernivtsi, 2015, P. 138-139.
  96. O. Gutik, Compact topological semigroups, X-th Summer School "Algebra, Topology, Analysis", August 3-15, 2015, Odessa, Ukraine. Book of Abstracts. Institute of Mathematics of NAS of Ukraine, Kyiv, 2015, P. 5.
  97. S. Bardyla, O. Gutik, and A. Ravsky, H-closed quasitopological groups, X-th Summer School "Algebra, Topology, Analysis", August 3-15, 2015, Odessa, Ukraine. Book of Abstracts. Institute of Mathematics of NAS of Ukraine, Kyiv, 2015, P. 67.
  98. O. Gutik, On the dichotomy of a locally compact semitopological bicyclic monoid with adjoined zero, X International Algebraic Conference in Ukraine dedicated to the 70th anniversary of Yu. A. Drozd, August 20-27, 2015, Odessa, Ukraine. Abstracts. I. I. Mechnikov Odessa National University, Odessa, 2015. P. 46.
  99. O. Gutik, and K. Melnyk, The semigroup of monotone co-finite partial homeomorphisms of the real line, X International Algebraic Conference in Ukraine dedicated to the 70th anniversary of Yu. A. Drozd, August 20-27, 2015, Odessa, Ukraine. Abstracts. I. I. Mechnikov Odessa National University, Odessa, 2015. P. 47.
  100. O. Gutik, and O. Sobol, Extensions of semigroups by symmetric inverse semigroups of a bounded finite rank, X International Algebraic Conference in Ukraine dedicated to the 70th anniversary of Yu. A. Drozd, August 20-27, 2015, Odessa, Ukraine. Abstracts. I. I. Mechnikov Odessa National University, Odessa, 2015. P. 48.
  101. O. Gutik, and K. Maksymyk, Semitopological bicyclic extensions of linearly ordered groups, International Conference Complex Analysis and Related Topics, May 30-June 4, 2016, Lviv. Abstracts. Lviv, 2016, P. 30.
  102. O. Gutik, and O. Sobol, Feebly compact topologies on the semilattice expn(λ), International Conference Complex Analysis and Related Topics, May 30-June 4, 2016, Lviv. Abstracts. Lviv, 2016, P. 31-32.
  103. S. Bardyla, O. Gutik, and A. Ravsky, H-closed quasitopological groups, International Conference "Geometry and topology in Odessa - 2016", 2 8 June, 2016, Odessa, Ukraine. Abstracts. Odessa, 2016, P. 13.
  104. S. Bardyla, O. Gutik, and A. Ravsky, H-closed quasitopological groups, 7th European Congress of Mathematics, July 18-22, 2016, Technische Universität Berlin, Book of Abstracts, Berlin, 2016, P. 379.
  105. S. Bardyla, and O. Gutik, On the embeddings and closures of a topological λ-polycyclic monoid, XI-th Summer School "Algebra, Topology, Analysis", August 1-14, 2016, Odessa, Ukraine. Book of Abstracts. Institute of Mathematics of NAS of Ukraine, Kyiv, 2016, P. 34.
  106. S. Bardyla, and O. Gutik, On the embeddings and closures of the topological λ-polycyclic monoid, International Conference dedicated to the 120th anniversary of Kazimierz Kuratowski, September 27-October 1, 2016, Lviv, Ukraine. Abtract of Reports. Lviv, 2016, P. 9.
  107. O. Gutik, On locally compact semitopological 0-bisimple inverse ω-semigroups, International Conference dedicated to the 120th anniversary of Kazimierz Kuratowski, September 27-October 1, 2016, Lviv, Ukraine. Abtract of Reports. Lviv, 2016, P. 21.
  108. K. Maksymyk, and O. Gutik, On semitopological interassociates of the bicyclic monoid, International Conference dedicated to the 120th anniversary of Kazimierz Kuratowski, September 27-October 1, 2016, Lviv, Ukraine. Abtract of Reports. Lviv, 2016, P. 31-32.
  109. I. Pozdniakova, and O. Gutik, On the monoid of monotone injective partial selfmaps of ℕ×ℕ with cofinite domains and images, International Conference dedicated to the 120th anniversary of Kazimierz Kuratowski, September 27-October 1, 2016, Lviv, Ukraine. Abtract of Reports. Lviv, 2016, P. 42.
  110. O. Sobol, and O. Gutik, Feebly compact topologies on the semilattice expnλ, International Conference dedicated to the 120th anniversary of Kazimierz Kuratowski, September 27-October 1, 2016, Lviv, Ukraine. Abtract of Reports. Lviv, 2016, P. 48.
  111. O. Gutik, Locally compact semitopological 0-bisimple inverse ω-monoids, International Mathematical Conference Groups and Actions: Geometry and Dynamics dedicated to the memory of Professor Vitaly Sushchanskyy, December 19-22, 2016, Taras Shevchenko National University of Kyiv, Ukraine. Abtract of Reports. Kyiv, 2016, P. 24.
  112. I. Pozdniakova, and O. Gutik, On the monoid of monotone injective partial selfmaps of 2 with co-finite domains and images, International Mathematical Conference Groups and Actions: Geometry and Dynamics dedicated to the memory of Professor Vitaly Sushchanskyy, December 19-22, 2016, Taras Shevchenko National University of Kyiv, Ukraine. Abtract of Reports. Kyiv, 2016, P. 39.
  113. O. Gutik, Topological properties of Taimanov semigroups, 11th International Algebraic Conference in Ukraine dedicated to the 75th anniversary of V. V. Kirichenko, July 3-7, 2017, Kyiv, Ukraine. Abstracts, Kyiv, 2017, P. 51.
  114. A. Savchuk, and O. Gutik, On the semigroup ID, 11th International Algebraic Conference in Ukraine dedicated to the 75th anniversary of V. V. Kirichenko, July 3-7, 2017, Kyiv, Ukraine. Abstracts, Kyiv, 2017, P. 119.
  115. O. Gutik, Around compact (semi)topological semigroups, XIIth Summer School, "Algebra, Topology, Analysis", July 10-23 2017, Kolochava, Ukraine. Abstracts of Reports. Kyiv, 2017, P. 32.
  116. O. Gutik, On feebly compact semitopological symmetric inverse semigroups of a bounded finite rank, International Conference in Functional Analysis dedicated to the 125th anniversary of Stefan Banach, Ukraine, 18-23 September 2017. Book of Abstracts, Lviv. 2017, P. 62.
  117. T. Mokrytskyi, and O. Gutik, On the semigroup of order isomorphisms of principal filters of a power of the integers, International Conference in Functional Analysis dedicated to the 125th anniversary of Stefan Banach, Ukraine, 18-23 September 2017. Book of Abstracts, Lviv. 2017, P. 74.

Other Conference, Workshop, Meeting Reports

  1. On the bands of compact inverse semigroups with open translations, All Ukrainian Scientific Conference "Development and Applications of Mathematical Methods in Scientific Research", October 3-7, 1995. Lviv, Ukraine.
  2. On compact semilattices with open principal ideals, Forth International Conference "Groups and Group Rings", September 17-21, 1996. Velykyi Lyubin, Ukraine.
  3. On homomorphisms of topological semigroups, International Conference Dedicated to 100th Anniversary of Rene Baer Dissertation, September 15-17, 1999. Chernivtsi, Ukraine.
  4. Topological semigroups of matrix units, Summer School on Algebra and Ordered Sets, September 2-9, 2006. Radejov, Czech Republic.
  5. H-closed topological semigroups and semilattices, 8th Conference "Geometry and Topology of Manifolds", April 30-May 6, 2007. Przemysl-Lviv, Poland-Ukraine.
  6. Semigroups of partial monotone bijections of ordered sets, The 51st Summer School on General Algebra and Ordered Sets, September 1-7, 2013, Hotel Troyer, Trojanovice, Czech Republic.
  7. Topological semigroups and paratopological groups, Join Meeting of the Mathematical Section NAN of Ukraine and the Section of Mathematics and Mathematical Modeling of Western Scientific Center of NAN of Ukraine, dedicated to the developed of the topology in Western Ukraine, October 30, 2013. Lviv.
  8. Topological semilattices with restrictions on translations, 2014 Zhangzhou International Topology Workshop, April 10-16, 2014. Minnan Normal University, Zhangzhou, China.
  9. H-complete topological semilattices, 2014 Zhangzhou International Topology Workshop, April 10-16, 2014. Minnan Normal University, Zhangzhou, China.
  10. Compact like topological semigroups, 2014 Zhangzhou International Topology Workshop, April 10-16, 2014. Minnan Normal University, Zhangzhou, China.
  11. Topological Brandt λ0-extensions of (semi)topological semigroups, 2014 Zhangzhou International Topology Workshop, April 10-16, 2014. Minnan Normal University, Zhangzhou, China.
  12. Pseudocompact topological semigroups, I, II, III, Workshop on Topological Groups and Their Generalizations, September 22-27, 2014. University of Hradec Králové, Czech Republic.
  13. On the group of automorphisms of the Brandt λ0-extension of a monoid with zero, Workshop on Algorithmic Aspects of Finding Semigroups of Partial Automorphisms of Combinatorial Structures, September 17, 2016. ITAT 2016, Hotel Sorea Hutnik, Tatranske Matliare, Slovakia.
  14. The topologization of inverse semigroups, The December Sesion of Shevchenko Scientific Society (Mathematical Committee), December 23, 2016. Lviv, UKraine.

Particapant of Conferences (Posters)

  1. The Second Europian Set Theory Metting: In Honnor of Ronald Jensen", July 5-10, 2009, Będlewo, Poland.

Other Papers

  1. I. Guran, and O. Gutik, Alexander Doniphan Wallace: the founder of the theory of topological semigroups, Third Summer School in Algebra, Analysis and Topology. Lviv-Kozyova, August 9-20, 2005. Invited Lectures and Abstracts of Research Reports. Lviv (2005), 31-57.
  2. Ya. Prytula, M. Zarichnyi, T. Banakh, and O. Gutik, Second summer school in algebra and topology, Mat. Stud. 22 (2004) no.2, 223-224.
  3. O. Gutik, and M. Zarichnyi, Third Summer School in Algebra, Analysis and Topology, Mat. Stud. 24 (2005), no. 2, 217-218.
  4. O. Gutik, and M. Zarichnyi, Third Summer School in Algebra, Analysis and Topology, Ukr. Math. Zh. 58 (2006), no. 2, 288-289 (in Ukrainian).
  5. O. Gutik, and M. Zarichnyi, Fourth Summer School Algebra, Topology, Functional and Stochastic Analysis, Mat. Stud. 26 (2006), no. 1, 111-112.
  6. . . , . . , . . , . . , I. . , . . i, . . , . . i, . . , . . , . . , . . , . . i, . . , I , ( 60-i ), Mat. Stud. 40 (2013), no. 2, 209-215.
  7. . . , . . , . . , I. . , . . i, . . , . . i, . . , . . , . . , . . i, . . , I. . , . . , . . i, . . , Robert Cauty, 13.11.1946 8.07.2013, Mat. Stud. 40 (2013), no. 2, 216-221.
  8. . . , . . , . . , . . , . . , . . , . . , . . , . . , Igor Guran (dedicated to the 60th birthday), Mathematical Bulletin of the Shevchenko Scientific Society 12 (2015), 147-154 (in Ukrainian).
  9. .. , .. , .. , .. , .. , .. , .. , .. , .. -, .. , .. , .. , .. , (25.05.1948 20.04.2016), Visn. L'viv. Univ., Ser. Mekh.-Mat. 81 (2016), 163-164 (in Ukrainian).
  10. . , . , . , . , . , . , . , . i, . , . , . , . i, . i, . , . , . , . , . i, ³ (14.11.1946-29.10.2016), Mathematical Bulletin of the Shevchenko Scientific Society 13 (2016), 165-167 (in Ukrainian).
  11. .. , .. , .. , .. i, .. , .. , .. i, .. i, .. , .. , .. , .. , .. i, .. , .. , .. , ³ (14 1946 - 29 2016), Mat. Stud. 46 (2016), no. 1, 111-112 (in Ukrainian).
  12. . , . , , 120- , Visn. L'viv. Univ., Ser. Mekh.-Mat. 82 (2016), 224-225 (in Ukrainian).

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Chair of Geometry and Topology: http://prima.lnu.edu.ua/faculty/mechmat/Departments/Topology/index.html

Last update: September 17, 2017.
© Oleg Gutik