Edit Profile (opens in new tab) Šostak, Alexander P. Co-Author Distance Author ID: sostak.alexander-p Published as: Šostak, Alexander; Shostak, A. P.; Šostak, A. P.; Šostak, Alexander P.; Šostak, A.; Sostak, A. P.; Šostaks, Aleksandrs; Shostak, Alexander; Shostak, A.; Shostak, Aleksander P.; Šostak, Aleksander P.; Shostak, Aleksander; Şostak, Alexander; Šostak, Alexandr; Sostak, A. more...less External Links: Wikidata · IdRef Documents Indexed: 110 Publications since 1972 6 Contributions as Editor Reviewing Activity: 106 Reviews Co-Authors: 49 Co-Authors with 65 Joint Publications 719 Co-Co-Authors all top 5 Co-Authors 49 single-authored 11 Uļjane, Ingrǐda 5 Bregman, Yuriĭ Kh. 5 Han, Sang-Eon 4 Eļkins, Aleksandrs 4 Gutiérrez García, Javier 4 Höhle, Ulrich 3 Asmuss, Svetlana V. 3 Aygün, Halis 3 Kubiak, Tomasz 3 Mardešić, Sibe 3 Shapirovskii, B. E. 2 Čerin, Zvonko Tomislav 2 de Prada Vicente, María Angeles 2 Dzhajanbajev, D. 2 Eklund, Patrik E. 2 Varol, Banu Pazar 1 Abel, Mati 1 Adnadjević, Dušan 1 Bēts, Raivis 1 Brown, Lawrence Michael 1 Burgin, Mark 1 Çetkin, Vildan 1 Chovanec, Ferdinand 1 Čimoka, Dace 1 Dizman, Tugbahan Simsekler 1 Dubey, Maneesh Kumar 1 Grecova, Svetlana 1 Grigorenko, Olga 1 Gvazava, M. V. 1 Junnila, Heikki J. K. 1 Kalina, Martin 1 Kim, In-Soo 1 Kóczy, László T. 1 Markin, Sergej A. 1 Medina-Moreno, Jesús 1 Mesiar, Radko 1 Miñana, Juan-José 1 Nánásiová, Olga 1 Porst, Hans-Eberhard 1 Pujate, L. 1 Ramírez-Poussa, Eloisa 1 Rodabaugh, Stephen Ernest 1 Shteinbuk, Veniamin 1 Shtejnbuk, V. B. 1 Sondore, Anita 1 Štěpnička, Martin 1 Steprāns, Juris 1 Tiwari, S. P. 1 Yuksel, Saziye 1 Zhong, Yu all top 5 Serials 13 Fuzzy Sets and Systems 4 Latviĭskiĭ Matematicheskiĭ Ezhegodnik 4 Topology and its Applications 3 Matematički Vesnik 3 Quaestiones Mathematicae 3 Soviet Mathematics. Doklady 3 Iranian Journal of Fuzzy Systems 2 Russian Mathematical Surveys 2 Commentationes Mathematicae Universitatis Carolinae 2 Zbornik Radova Filozofskog Fakulteta u Nisu. Serija Matematika 2 Journal of Mathematical Sciences (New York) 2 Filomat 2 Soft Computing 2 Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences 2 Applied General Topology 2 Hacettepe Journal of Mathematics and Statistics 2 Latvijas Universitātes Zinātniskie Raksti 2 Topologicheskie Prostranstva i Ikh Otobrazheniya 1 Časopis Pro Pěstování Matematiky 1 Czechoslovak Mathematical Journal 1 Functional Analysis and its Applications 1 Information Sciences 1 Kybernetika 1 Semigroup Forum 1 Radovi Matematički 1 International Journal of Approximate Reasoning 1 Mathematica Bohemica 1 Glasnik Matematički. Serija III 1 Serdica 1 Bulletin de l’Académie Polonaise des Sciences. Série des Sciences Mathématiques 1 Tatra Mountains Mathematical Publications 1 Rad Hrvatske Akademije Znanosti i Umjetnosti. Matematičke Znanosti 1 Topology Proceedings 1 Computational and Applied Mathematics 1 Abstract and Applied Analysis 1 Journal of Applied Mathematics and Computing 1 Journal of Electrical Engineering 1 Bulletin de l’Académie Polonaise des Sciences, Série des Sciences Mathématiques, Astronomiques et Physiques 1 Supplemento ai Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Studies in Computational Intelligence 1 Applied General Topology 1 TWMS Journal of Pure and Applied Mathematics 1 Axioms all top 5 Fields 96 General topology (54-XX) 26 Mathematical logic and foundations (03-XX) 16 Category theory; homological algebra (18-XX) 11 Computer science (68-XX) 6 General and overarching topics; collections (00-XX) 5 Order, lattices, ordered algebraic structures (06-XX) 5 Functional analysis (46-XX) 3 Group theory and generalizations (20-XX) 3 Real functions (26-XX) 3 Approximations and expansions (41-XX) 3 Algebraic topology (55-XX) 2 Measure and integration (28-XX) 1 History and biography (01-XX) 1 Combinatorics (05-XX) 1 Probability theory and stochastic processes (60-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 75 Publications have been cited 887 times in 535 Documents Cited by ▼ Year ▼ Axiomatic foundations of fixed-basis fuzzy topology. Zbl 0977.54006Höhle, U.; Šostak, A. P. 208 1999 On a fuzzy topological structure. Zbl 0638.54007Šostak, A. P. 146 1985 E-compact extensions of topological spaces. Zbl 0301.54027Shostak, A. P. 75 1974 Two decades of fuzzy topology: Basic ideas, notions, and results. Zbl 0716.54004Shostak, A. P. 56 1989 A general theory of fuzzy topological spaces. Zbl 0948.54003Höhle, Ulrich; Šostak, Alexander 44 1995 Basic structures of fuzzy topology. Zbl 0857.54003Šostak, A. P. 42 1996 Lower set-valued fuzzy topologies. Zbl 0890.54005Kubiak, T.; Šostak, A. 34 1997 A unified approach to the concept of fuzzy \(L\)-uniform space. Zbl 1061.54006Gutiérrez García, J.; de Prada Vicente, M. A.; Šostak, A. P. 27 2003 A compression of digital images derived from a Khalimsky topological structure. Zbl 1300.54012Han, Sang-Eon; Šostak, A. 20 2013 On the neighbourhood structure of fuzzy topological spaces. Zbl 0713.54008Šostak, A. P. 15 1990 A fuzzification of the category of \(M\)-valued \(L\)-topological spaces. Zbl 1069.54007Kubiak, Tomasz; Šostak, Alexander P. 14 2004 Towards the theory of \(\mathbb M\)-approximate systems: Fundamentals and examples. Zbl 1222.54008Šostak, Alexander 12 2010 Categories of fuzzy topology in the context of graded ditopologies on textures. Zbl 1419.54007Šostak, Alexander; Brown, Lawrence M. 10 2014 On the measure of \(M\)-rough approximation of \(L\)-fuzzy sets. Zbl 1398.03178Han, Sang-Eon; Šostak, Alexander 8 2018 On a category for fuzzy topology. Zbl 0685.54006Šostak, A. P. 7 1988 On some modifications of fuzzy topology. Zbl 0705.54007Shostak, A. P. 7 1989 Mathematics. (Matemātika.) Zbl 0834.00012 7 1994 Towards the theory of \(L\)-bornological spaces. Zbl 1253.46077Abel, M.; Šostak, A. 7 2011 A new approach to soft topology. Zbl 1276.54007Varol, Banu Pazar; Shostak, Alexander; Aygün, Halis 7 2012 Another approach to the concept of a fuzzy proximity. Zbl 0789.54004Markin, Sergej A.; Šostak, Alexander P. 6 1992 Fuzzification of the theory of continuous functions. Zbl 0828.26015Burgin, Mark; Šostak, Alexandr 6 1994 On a fuzzy uniform structure. Zbl 0809.54008Dzhajanbajev, D.; Šostak, A. P. 6 1992 Fuzzy categories related to algebra and topology. Zbl 0947.18001Šostak, Alexander 6 1999 Fuzzifying topology induced by a strong fuzzy metric. Zbl 1378.54012Miñana, Juan-José; Šostak, Alexander 6 2016 On approximate-type systems generated by \( L\)-relations. Zbl 1461.03052Han, Sang-Eon; Kim, In Soo; Šostak, Alexander 6 2014 A fuzzy modification of the category of linearly ordered spaces. Zbl 0594.54003Shostak, A. 5 1985 Editorial to the “Special issue on fuzzy topology”. Zbl 0867.54003Höhle, U.; Rodabaugh, S. E.; Šostak, A. 5 1995 M-valued measure of roughness for approximation of \(L\)-fuzzy sets and its topological interpretation. Zbl 1462.03022Han, Sang-Eon; Šostak, Alexander 5 2016 Some remarks on Borsuk’s fundamental metric. Zbl 0455.54029Čerin, Z. T.; Šostak, A. P. 5 1980 On compactness and connectedness degrees of fuzzy sets in fuzzy topological spaces. Zbl 0638.54008Shostak, A. P. 5 1988 \(L\)-fuzzy syntopogenous structures. I: Fundamentals and application to \(L\)-fuzzy topologies, \(L\)-fuzzy proximities and \(L\)-fuzzy uniformities. Zbl 1314.54004Čimoka, Dace; Šostak, Alexander 5 2013 On semigroups of continuous transformations of fuzzily structured sets. Zbl 0761.54006Shteinbuk, V. B.; Šostak, A. P. 4 1991 On partition of topological spaces. Zbl 0539.54005Bregman, Yu. K.; Shapirovskij, B. Eh.; Shostak, A. P. 4 1984 Even fuzzy topologies and related structures. Zbl 0896.54003Gutiérrez García, Javier; De Prada Vicente, M. A.; Šostak, A. 4 1997 Categories related to topology viewed as soft sets. Zbl 1254.54013Varol, Banu Pazar; Shostak, Alexander; Aygün, Halis 4 2011 \(L\)-valued categories generalities and examples related to algebra and topology. Zbl 1068.18001Šostak, Alexander P. 3 2004 Fuzzy syntopogeneous structures. Zbl 0890.54002Šostak, Alexander P. 3 1997 On the concept of E-regularity for fuzzy topology. Zbl 0714.54004Šostak, A. 3 1989 Restricted compactness properties and their preservation under products. Zbl 0962.54020Steprāns, Juris; Šostak, Alexander P. 3 2000 Towards the theory of approximate systems: variable range categories. Zbl 1301.03044Šostak, Alexander 3 2012 Soft ditopological spaces. Zbl 1461.54012Dizman, Tugbahan Simsekler; Šostak, Alexander; Yuksel, Saziye 3 2016 \(L^M\)-valued equalities, \(L^M\)-rough approximation operators and \(ML\)-graded ditopologies. Zbl 1372.54011Šostak, Alexander; Eļkins, Aleksandrs 3 2017 Some remarks on fuzzy \(k\)-pseudometric spaces. Zbl 1499.54065Šostak, Alexander 3 2018 Fuzzy cardinals and cardinalities of fuzzy sets. Zbl 0800.04006Šostak, A. 2 1989 A construction of a fuzzy topology from a strong fuzzy metric. Zbl 1353.54009Grecova, Svetlana; Šostak, Alexander; Uljane, Ingrīda 2 2016 Shapes in classes of compactness: retracts, extensors, movability. Zbl 0416.54010Shostak, A. P. 2 1975 On endomorphism semigroups of a fuzzily structured set. Zbl 0861.54004Shteinbuk, Veniamin; Šostak, Alexander 2 1992 On completeness and precompactness spectra of fuzzy sets in fuzzy uniform spaces. Zbl 0697.54005Shostak, Aleksander; Dzhayanbaev, D. 2 1990 On cardinal functions of fuzzy sets in fuzzy topological spaces. I. Zbl 0718.54016Šostak, A. P. 2 1990 On inductive dimensions for fuzzy topological spaces. Zbl 0867.54004Adnadjević, D.; Šostak, A. P. 2 1995 On some fuzzy categories related to category \(L\)-TOP of \(L\)-topological spaces. Zbl 1052.54005Šostak, A. P. 2 2003 Extremal problems of approximation theory of fuzzy sets. Zbl 1126.41305Asmuss, Svetlana V.; Šostak, Alexander P. 2 1997 \(L\)-valued bornologies on powersets. Zbl 1374.46056Šostak, Alexander; Uļjane, Ingrīda 2 2016 Aggregation operators in fuzzy relational mathematical morphology: erosion and dilation. Zbl 1471.68297Šostak, Alexander; Uljane, Ingrīda; Eklund, Patrik 2 2022 On a class of topological spaces containing all bicompact and all connected spaces. Zbl 0369.54006Sostak, A. 2 1977 On a category of extensional fuzzy rough approximation \(L\)-valued spaces. Zbl 1455.03069Eļkins, Aleksandrs; Šostak, Alexander; Uļjane, Ingrīda 2 2016 Variable-range approximate systems induced by many-valued \(L\)-relations. Zbl 1432.03107Eļkins, Aleksandrs; Han, Sang-Eon; Šostak, Alexander 2 2014 A new definition of fuzzy \(k\)-pseudo metric and its induced fuzzifying structures. Zbl 1505.54018Zhong, Y.; Šostak, A. 2 2021 On stratifiable fuzzy topological spaces. Zbl 0786.54007Šostak, Alexander P. 1 1992 Fuzzy functions and an extension of the category \(L\)-Top of Chang-Goguen \(L\)-topological spaces. Zbl 1019.54006Šostak, Alexander P. 1 2002 The compactness degree of fuzzy subsets in fuzzy topological spaces. Zbl 0668.54005Shostak, A. P. 1 1988 On the stratification test of metrizability of topological spaces. Zbl 0562.54040Shostak, A. P. 1 1983 On zero-dimensionality in fuzzy topology. Zbl 0724.54010Pujate, L.; Šostak, A. 1 1990 Connectedness degree of fuzzy sets in fuzzy topological spaces. Zbl 0725.54008Shostak, A. P. 1 1988 On clp-compact and countably clp-compact spaces. Zbl 0917.54030Sondore, A.; Šostak, A. 1 1994 On decomposition of a space into certain subsets and \({\text cl}\)- cardinality of a topological space. Zbl 0806.54002Bregman, Yu. H.; Shapirovskij, B. E.; Šostak, A. P. 1 1994 A theorem on decomposition into compact-scattered subspaces and cardinality of topological spaces. Zbl 0806.54003Bregman, Yu. H.; Shapirovskij, B. E.; Šostak, A. P. 1 1994 Fuzzy functions: A fuzzy extension of the category SET and some related categories. Zbl 0977.03028Höhle, Ulrich; Porst, Hans-E.; Šostak, Alexander P. 1 2000 An approach to the concept of soft fuzzy proximity. Zbl 1474.54036Çetkin, Vildan; Šostak, Alexander P.; Aygün, Halis 1 2014 Some criteria of the final compactness of strongly paracompact spaces. Zbl 0439.54017Shostak, A. P. 1 1979 Bornological structures on many-valued sets. Zbl 1390.54009Šostak, Alexander; Uļjane, Ingrīda 1 2017 George-Veeramani fuzzy metrics revised. Zbl 1432.03112Šostak, Alexander 1 2018 Categories of quantale-valued fuzzy automata: determinization and minimization. Zbl 1495.18004Dubey, M. K.; Tiwari, S. P.; Šostak, Alexander 1 2020 Shape equivalence in compactness classes. Zbl 0292.54051Sostak, A. P. 1 1974 Computational intelligence and mathematics for tackling complex problems. Zbl 1415.68006 1 2020 Aggregation operators in fuzzy relational mathematical morphology: erosion and dilation. Zbl 1471.68297Šostak, Alexander; Uljane, Ingrīda; Eklund, Patrik 2 2022 A new definition of fuzzy \(k\)-pseudo metric and its induced fuzzifying structures. Zbl 1505.54018Zhong, Y.; Šostak, A. 2 2021 Categories of quantale-valued fuzzy automata: determinization and minimization. Zbl 1495.18004Dubey, M. K.; Tiwari, S. P.; Šostak, Alexander 1 2020 Computational intelligence and mathematics for tackling complex problems. Zbl 1415.68006 1 2020 On the measure of \(M\)-rough approximation of \(L\)-fuzzy sets. Zbl 1398.03178Han, Sang-Eon; Šostak, Alexander 8 2018 Some remarks on fuzzy \(k\)-pseudometric spaces. Zbl 1499.54065Šostak, Alexander 3 2018 George-Veeramani fuzzy metrics revised. Zbl 1432.03112Šostak, Alexander 1 2018 \(L^M\)-valued equalities, \(L^M\)-rough approximation operators and \(ML\)-graded ditopologies. Zbl 1372.54011Šostak, Alexander; Eļkins, Aleksandrs 3 2017 Bornological structures on many-valued sets. Zbl 1390.54009Šostak, Alexander; Uļjane, Ingrīda 1 2017 Fuzzifying topology induced by a strong fuzzy metric. Zbl 1378.54012Miñana, Juan-José; Šostak, Alexander 6 2016 M-valued measure of roughness for approximation of \(L\)-fuzzy sets and its topological interpretation. Zbl 1462.03022Han, Sang-Eon; Šostak, Alexander 5 2016 Soft ditopological spaces. Zbl 1461.54012Dizman, Tugbahan Simsekler; Šostak, Alexander; Yuksel, Saziye 3 2016 A construction of a fuzzy topology from a strong fuzzy metric. Zbl 1353.54009Grecova, Svetlana; Šostak, Alexander; Uljane, Ingrīda 2 2016 \(L\)-valued bornologies on powersets. Zbl 1374.46056Šostak, Alexander; Uļjane, Ingrīda 2 2016 On a category of extensional fuzzy rough approximation \(L\)-valued spaces. Zbl 1455.03069Eļkins, Aleksandrs; Šostak, Alexander; Uļjane, Ingrīda 2 2016 Categories of fuzzy topology in the context of graded ditopologies on textures. Zbl 1419.54007Šostak, Alexander; Brown, Lawrence M. 10 2014 On approximate-type systems generated by \( L\)-relations. Zbl 1461.03052Han, Sang-Eon; Kim, In Soo; Šostak, Alexander 6 2014 Variable-range approximate systems induced by many-valued \(L\)-relations. Zbl 1432.03107Eļkins, Aleksandrs; Han, Sang-Eon; Šostak, Alexander 2 2014 An approach to the concept of soft fuzzy proximity. Zbl 1474.54036Çetkin, Vildan; Šostak, Alexander P.; Aygün, Halis 1 2014 A compression of digital images derived from a Khalimsky topological structure. Zbl 1300.54012Han, Sang-Eon; Šostak, A. 20 2013 \(L\)-fuzzy syntopogenous structures. I: Fundamentals and application to \(L\)-fuzzy topologies, \(L\)-fuzzy proximities and \(L\)-fuzzy uniformities. Zbl 1314.54004Čimoka, Dace; Šostak, Alexander 5 2013 A new approach to soft topology. Zbl 1276.54007Varol, Banu Pazar; Shostak, Alexander; Aygün, Halis 7 2012 Towards the theory of approximate systems: variable range categories. Zbl 1301.03044Šostak, Alexander 3 2012 Towards the theory of \(L\)-bornological spaces. Zbl 1253.46077Abel, M.; Šostak, A. 7 2011 Categories related to topology viewed as soft sets. Zbl 1254.54013Varol, Banu Pazar; Shostak, Alexander; Aygün, Halis 4 2011 Towards the theory of \(\mathbb M\)-approximate systems: Fundamentals and examples. Zbl 1222.54008Šostak, Alexander 12 2010 A fuzzification of the category of \(M\)-valued \(L\)-topological spaces. Zbl 1069.54007Kubiak, Tomasz; Šostak, Alexander P. 14 2004 \(L\)-valued categories generalities and examples related to algebra and topology. Zbl 1068.18001Šostak, Alexander P. 3 2004 A unified approach to the concept of fuzzy \(L\)-uniform space. Zbl 1061.54006Gutiérrez García, J.; de Prada Vicente, M. A.; Šostak, A. P. 27 2003 On some fuzzy categories related to category \(L\)-TOP of \(L\)-topological spaces. Zbl 1052.54005Šostak, A. P. 2 2003 Fuzzy functions and an extension of the category \(L\)-Top of Chang-Goguen \(L\)-topological spaces. Zbl 1019.54006Šostak, Alexander P. 1 2002 Restricted compactness properties and their preservation under products. Zbl 0962.54020Steprāns, Juris; Šostak, Alexander P. 3 2000 Fuzzy functions: A fuzzy extension of the category SET and some related categories. Zbl 0977.03028Höhle, Ulrich; Porst, Hans-E.; Šostak, Alexander P. 1 2000 Axiomatic foundations of fixed-basis fuzzy topology. Zbl 0977.54006Höhle, U.; Šostak, A. P. 208 1999 Fuzzy categories related to algebra and topology. Zbl 0947.18001Šostak, Alexander 6 1999 Lower set-valued fuzzy topologies. Zbl 0890.54005Kubiak, T.; Šostak, A. 34 1997 Even fuzzy topologies and related structures. Zbl 0896.54003Gutiérrez García, Javier; De Prada Vicente, M. A.; Šostak, A. 4 1997 Fuzzy syntopogeneous structures. Zbl 0890.54002Šostak, Alexander P. 3 1997 Extremal problems of approximation theory of fuzzy sets. Zbl 1126.41305Asmuss, Svetlana V.; Šostak, Alexander P. 2 1997 Basic structures of fuzzy topology. Zbl 0857.54003Šostak, A. P. 42 1996 A general theory of fuzzy topological spaces. Zbl 0948.54003Höhle, Ulrich; Šostak, Alexander 44 1995 Editorial to the “Special issue on fuzzy topology”. Zbl 0867.54003Höhle, U.; Rodabaugh, S. E.; Šostak, A. 5 1995 On inductive dimensions for fuzzy topological spaces. Zbl 0867.54004Adnadjević, D.; Šostak, A. P. 2 1995 Mathematics. (Matemātika.) Zbl 0834.00012 7 1994 Fuzzification of the theory of continuous functions. Zbl 0828.26015Burgin, Mark; Šostak, Alexandr 6 1994 On clp-compact and countably clp-compact spaces. Zbl 0917.54030Sondore, A.; Šostak, A. 1 1994 On decomposition of a space into certain subsets and \({\text cl}\)- cardinality of a topological space. Zbl 0806.54002Bregman, Yu. H.; Shapirovskij, B. E.; Šostak, A. P. 1 1994 A theorem on decomposition into compact-scattered subspaces and cardinality of topological spaces. Zbl 0806.54003Bregman, Yu. H.; Shapirovskij, B. E.; Šostak, A. P. 1 1994 Another approach to the concept of a fuzzy proximity. Zbl 0789.54004Markin, Sergej A.; Šostak, Alexander P. 6 1992 On a fuzzy uniform structure. Zbl 0809.54008Dzhajanbajev, D.; Šostak, A. P. 6 1992 On endomorphism semigroups of a fuzzily structured set. Zbl 0861.54004Shteinbuk, Veniamin; Šostak, Alexander 2 1992 On stratifiable fuzzy topological spaces. Zbl 0786.54007Šostak, Alexander P. 1 1992 On semigroups of continuous transformations of fuzzily structured sets. Zbl 0761.54006Shteinbuk, V. B.; Šostak, A. P. 4 1991 On the neighbourhood structure of fuzzy topological spaces. Zbl 0713.54008Šostak, A. P. 15 1990 On completeness and precompactness spectra of fuzzy sets in fuzzy uniform spaces. Zbl 0697.54005Shostak, Aleksander; Dzhayanbaev, D. 2 1990 On cardinal functions of fuzzy sets in fuzzy topological spaces. I. Zbl 0718.54016Šostak, A. P. 2 1990 On zero-dimensionality in fuzzy topology. Zbl 0724.54010Pujate, L.; Šostak, A. 1 1990 Two decades of fuzzy topology: Basic ideas, notions, and results. Zbl 0716.54004Shostak, A. P. 56 1989 On some modifications of fuzzy topology. Zbl 0705.54007Shostak, A. P. 7 1989 On the concept of E-regularity for fuzzy topology. Zbl 0714.54004Šostak, A. 3 1989 Fuzzy cardinals and cardinalities of fuzzy sets. Zbl 0800.04006Šostak, A. 2 1989 On a category for fuzzy topology. Zbl 0685.54006Šostak, A. P. 7 1988 On compactness and connectedness degrees of fuzzy sets in fuzzy topological spaces. Zbl 0638.54008Shostak, A. P. 5 1988 The compactness degree of fuzzy subsets in fuzzy topological spaces. Zbl 0668.54005Shostak, A. P. 1 1988 Connectedness degree of fuzzy sets in fuzzy topological spaces. Zbl 0725.54008Shostak, A. P. 1 1988 On a fuzzy topological structure. Zbl 0638.54007Šostak, A. P. 146 1985 A fuzzy modification of the category of linearly ordered spaces. Zbl 0594.54003Shostak, A. 5 1985 On partition of topological spaces. Zbl 0539.54005Bregman, Yu. K.; Shapirovskij, B. Eh.; Shostak, A. P. 4 1984 On the stratification test of metrizability of topological spaces. Zbl 0562.54040Shostak, A. P. 1 1983 Some remarks on Borsuk’s fundamental metric. Zbl 0455.54029Čerin, Z. T.; Šostak, A. P. 5 1980 Some criteria of the final compactness of strongly paracompact spaces. Zbl 0439.54017Shostak, A. P. 1 1979 On a class of topological spaces containing all bicompact and all connected spaces. Zbl 0369.54006Sostak, A. 2 1977 Shapes in classes of compactness: retracts, extensors, movability. Zbl 0416.54010Shostak, A. P. 2 1975 E-compact extensions of topological spaces. Zbl 0301.54027Shostak, A. P. 75 1974 Shape equivalence in compactness classes. Zbl 0292.54051Sostak, A. P. 1 1974 all cited Publications top 5 cited Publications all top 5 Cited by 404 Authors 32 Šostak, Alexander P. 23 Han, Sang-Eon 21 Fang, Jinming 21 Shi, Fu-Gui 19 Jäger, Gunther 18 Demirci, Mustafa 17 Pang, Bin 17 Solovyov, Sergey A. 16 Abbas, Salah El-Deen 15 Ghareeb, A. 15 Zhang, Dexue 14 Gutiérrez García, Javier 13 Yue, Yueli 10 Aygün, Halis 10 Rodabaugh, Stephen Ernest 10 Yao, Wei 9 Yan, Conghua 8 de Prada Vicente, María Angeles 8 Höhle, Ulrich 8 Kubiak, Tomasz 8 Li, Lingqiang 8 Ramadan, Ahmed Abd El-Kader 8 Sayed, Osama Rashed 8 Uļjane, Ingrǐda 7 Ahsanullah, T. M. G. 7 El-Saady, Kamal 7 Jin, Qiu 7 Veselov, Alexander Petrovich 6 Kim, Yong Chan 5 Abd El-Latif, Ahmed Aref 5 Al-Thukair, Fawzi A. 5 Ekmekçi, Ramazan 5 Krichever, Igor’ Moiseevich 5 Lai, Hongliang 5 Li, Qingguo 5 Mardones-Pérez, Iraide 5 Šešelja, Branimir 5 Tepavčević, Andreja 4 Al-Mufarrij, Jawaher 4 Asmuss, Svetlana V. 4 Burgin, Mark 4 Çetkin, Vildan 4 Denniston, Jeffrey T. 4 Enolskiĭ, Viktor Zelikovich 4 Ko, Jung Mi 4 Melton, Austin C. jun. 4 Novikov, Sergeĭ Petrovich 4 Paseka, Jan 4 Richardson, Gary D. 4 Xiu, Zhenyu 4 Zhong, Yu 3 Abd-Allah, Mohammed Azab 3 Alimohammady, Mohsen 3 Aygünoğlu, Abdülkadir 3 Bogoyavlenskij, Oleg Igorevich 3 Burton, M. H. 3 Chen, Piwei 3 Dickey, Leonid A. 3 Dubrovin, Boris Anatol’evich 3 El-Sanousy, El-Sayed 3 Eļkins, Aleksandrs 3 Ertürk, Rıza 3 Gel’fand, Israil’ Moiseevich 3 Hu, Baoqing 3 Hu, Kai 3 Jinming, Fang 3 Khalaf, Mohammed M. 3 Khalil, O. H. 3 Li, Hongyan 3 Li, Shenggang 3 Liu, Yingming 3 Luo, Maokang 3 Prykarpatsky, Anatoliy Karolevych 3 Roohi, Mehdi 3 Russo, Ciro 3 Samanta, Syamal Kumar 3 Šlapal, Josef 3 Stehlík, Milan 3 Vadivel, Appachi 3 Wu, Xiuyun 3 Yang, Xiaofei 3 Zhang, Gao 2 Aydoğdu, Ebru 2 Bai, Shizhong 2 Bayoumi, Fatma 2 Belokolos, Eugene D. 2 Boustique, Hatim 2 Bregman, Yuriĭ Kh. 2 Cao, Cewen 2 Chandrasekar, Veerappan 2 Chattopadhyay, K. C. 2 Chen, Xueyou 2 Çoker, Doǧan 2 De La Pava, Luz Victoria 2 Dobrokhotov, Sergei Yurievich 2 Elavarasan, Elangovan 2 Elkordy, E. H. 2 Flores, P. V. 2 Gauld, David B. 2 Grigorenko, Olga ...and 304 more Authors all top 5 Cited in 96 Serials 196 Fuzzy Sets and Systems 25 Functional Analysis and its Applications 19 Topology and its Applications 19 Filomat 14 Information Sciences 13 Journal of the Egyptian Mathematical Society 13 Journal of Intelligent and Fuzzy Systems 12 Iranian Journal of Fuzzy Systems 11 Journal of Soviet Mathematics 11 Soft Computing 9 Chaos, Solitons and Fractals 9 Quaestiones Mathematicae 8 Theoretical and Mathematical Physics 7 International Journal of Approximate Reasoning 6 Journal of Mathematical Analysis and Applications 6 International Journal of Mathematics and Mathematical Sciences 6 Acta Applicandae Mathematicae 6 Computational and Applied Mathematics 6 New Mathematics and Natural Computation 5 Computers & Mathematics with Applications 5 Journal of Mathematical Physics 5 Advances in Fuzzy Systems 4 Communications in Mathematical Physics 4 Kybernetika 4 Journal of Mathematical Sciences (New York) 4 Abstract and Applied Analysis 4 Sahand Communications in Mathematical Analysis 3 Applied General Topology 3 Journal of Mathematics 2 Mathematical Notes 2 Ukrainian Mathematical Journal 2 Applied Mathematics and Computation 2 Inventiones Mathematicae 2 Applied Mathematics Letters 2 Mathematical and Computer Modelling 2 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 2 Archive for Mathematical Logic 2 Turkish Journal of Mathematics 2 Honam Mathematical Journal 2 Journal of Applied Mathematics and Computing 2 Hacettepe Journal of Mathematics and Statistics 2 Proyecciones 2 Applications and Applied Mathematics 2 Journal of Nonlinear Science and Applications 2 TWMS Journal of Pure and Applied Mathematics 2 Fuzzy Information and Engineering 2 Open Mathematics 1 Communications on Pure and Applied Mathematics 1 Discrete Applied Mathematics 1 International Journal of General Systems 1 Letters in Mathematical Physics 1 Mathematical Proceedings of the Cambridge Philosophical Society 1 Compositio Mathematica 1 Czechoslovak Mathematical Journal 1 Demonstratio Mathematica 1 Journal of Computer and System Sciences 1 Jnanabha 1 Matematički Vesnik 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 Proceedings of the American Mathematical Society 1 Semigroup Forum 1 Studia Logica 1 Ergodic Theory and Dynamical Systems 1 Annals of Pure and Applied Logic 1 Order 1 Journal of Automated Reasoning 1 MSCS. Mathematical Structures in Computer Science 1 Acta Mathematica Sinica. New Series 1 Journal of Dynamics and Differential Equations 1 Mathematical Logic Quarterly (MLQ) 1 Annals of Mathematics and Artificial Intelligence 1 Mathematica Moravica 1 Communications de la Faculté des Sciences de l’Université d’Ankara. Séries A1. Mathematics and Statistics 1 Acta Mathematica Sinica. English Series 1 International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 1 Journal of Nonlinear Mathematical Physics 1 Differential Equations 1 Bulletin of the Brazilian Mathematical Society. New Series 1 Thai Journal of Mathematics 1 Boletim da Sociedade Paranaense de Matemática. Terceira Série 1 Proceedings of the Steklov Institute of Mathematics 1 Transactions of National Academy of Sciences of Azerbaijan. Series of Physical-Technical and Mathematical Sciences 1 Analele Universității de Vest din Timișoara. Seria Matematică-Informatică 1 Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica 1 Journal of Applied Mathematics & Informatics 1 Journal of Mathematical Extension 1 Arabian Journal of Mathematics 1 Journal of Mahani Mathematical Research Center 1 Palestine Journal of Mathematics 1 Journal of Linear and Topological Algebra 1 Journal of Function Spaces 1 International Journal of Applied and Computational Mathematics 1 Cogent Mathematics 1 Proceedings of the Royal Society of London. A. Mathematical, Physical and Engineering Sciences 1 Journal of Ramanujan Society of Mathematics and Mathematical Sciences 1 AIMS Mathematics all top 5 Cited in 42 Fields 379 General topology (54-XX) 85 Mathematical logic and foundations (03-XX) 76 Order, lattices, ordered algebraic structures (06-XX) 63 Category theory; homological algebra (18-XX) 49 Partial differential equations (35-XX) 42 Computer science (68-XX) 23 Dynamical systems and ergodic theory (37-XX) 18 Functional analysis (46-XX) 16 Ordinary differential equations (34-XX) 14 Algebraic topology (55-XX) 13 Operator theory (47-XX) 12 Group theory and generalizations (20-XX) 12 Convex and discrete geometry (52-XX) 10 Real functions (26-XX) 8 Topological groups, Lie groups (22-XX) 8 Quantum theory (81-XX) 7 General algebraic systems (08-XX) 7 Mechanics of particles and systems (70-XX) 6 Algebraic geometry (14-XX) 5 Combinatorics (05-XX) 5 Special functions (33-XX) 4 Nonassociative rings and algebras (17-XX) 4 Measure and integration (28-XX) 3 History and biography (01-XX) 3 Global analysis, analysis on manifolds (58-XX) 3 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Associative rings and algebras (16-XX) 2 Functions of a complex variable (30-XX) 2 Approximations and expansions (41-XX) 2 Differential geometry (53-XX) 2 Numerical analysis (65-XX) 2 Fluid mechanics (76-XX) 2 Information and communication theory, circuits (94-XX) 1 Field theory and polynomials (12-XX) 1 Commutative algebra (13-XX) 1 Potential theory (31-XX) 1 Integral equations (45-XX) 1 Manifolds and cell complexes (57-XX) 1 Probability theory and stochastic processes (60-XX) 1 Relativity and gravitational theory (83-XX) 1 Systems theory; control (93-XX) Citations by Year Wikidata Timeline The data are displayed as stored in Wikidata under a Creative Commons CC0 License. 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