Šostak, Alexander; Uļjane, Ingrīda Powerset operators induced by fuzzy relations as a basis for fuzzification of various mathematical structures. (English) Zbl 07698203 Int. J. Approx. Reasoning 155, 17-39 (2023). MSC: 68T37 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{I. Uļjane}, Int. J. Approx. Reasoning 155, 17--39 (2023; Zbl 07698203) Full Text: DOI
Šostak, Alexander; Grigorenko, Olga; Bēts, Raivis Two kinds of parameterized metrics: construction, topological properties and applications. (English) Zbl 1516.54012 Topology Appl. 330, Article ID 108488, 22 p. (2023). Reviewer: Francisco Gallego Lupiáñez (Madrid) MSC: 54E35 54E40 68R15 54A40 PDFBibTeX XMLCite \textit{A. Šostak} et al., Topology Appl. 330, Article ID 108488, 22 p. (2023; Zbl 1516.54012) Full Text: DOI
Šostak, Alexander; Uljane, Ingrida On two categories of many-level fuzzy morphological spaces. (English) Zbl 1509.68290 Cornejo, María Eugenia (ed.) et al., Computational intelligence and mathematics for tackling complex problems 2. Selected papers based on the presentations at the 11th European symposium on computational intelligence and mathematics, Toledo, Spain, October 2–5, 2019. Cham: Springer. Stud. Comput. Intell. 955, 207-217 (2022). MSC: 68U05 03E72 18B99 54A40 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{I. Uljane}, Stud. Comput. Intell. 955, 207--217 (2022; Zbl 1509.68290) Full Text: DOI
Šostak, Alexander; Uljane, Ingrīda; Eklund, Patrik Aggregation operators in fuzzy relational mathematical morphology: erosion and dilation. (English) Zbl 1471.68297 Harmati, István Á. (ed.) et al., Computational intelligence and mathematics for tackling complex problems 3. Selected papers based on the presentations at the ESCIM-2020, virtual, 2020 and 2021. Cham: Springer. Stud. Comput. Intell. 959, 57-71 (2022). MSC: 68U10 68T37 PDFBibTeX XMLCite \textit{A. Šostak} et al., Stud. Comput. Intell. 959, 57--71 (2022; Zbl 1471.68297) Full Text: DOI
Šostak, Alexander; Uļjane, Ingrǐda Manifestation of fuzzy topology in other fuzzy mathematical structures. (English) Zbl 1498.54013 TWMS J. Pure Appl. Math. 12, No. 1, 142-172 (2021). Reviewer: Francisco Gallego Lupiáñez (Madrid) MSC: 54A40 06B23 18B99 03B52 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{I. Uļjane}, TWMS J. Pure Appl. Math. 12, No. 1, 142--172 (2021; Zbl 1498.54013) Full Text: Link
Zhong, Y.; Šostak, A. A new definition of fuzzy \(k\)-pseudo metric and its induced fuzzifying structures. (English) Zbl 1505.54018 Iran. J. Fuzzy Syst. 18, No. 6, 55-66 (2021). MSC: 54A40 54E35 PDFBibTeX XMLCite \textit{Y. Zhong} and \textit{A. Šostak}, Iran. J. Fuzzy Syst. 18, No. 6, 55--66 (2021; Zbl 1505.54018) Full Text: DOI
Šostak, Alexander; Uljane, Ingrīda; Eklund, Patrik Fuzzy relational mathematical morphology: erosion and dilation. (English) Zbl 1523.68163 Lesot, Marie-Jeanne (ed.) et al., Information processing and management of uncertainty in knowledge-based systems. 18th International Conference, IPMU 2020, Lisbon, Portugal, June 15–19, 2020. Proceedings, Part III. Cham: Springer. Commun. Comput. Inf. Sci. 1239, 712-725 (2020). MSC: 68U10 PDFBibTeX XMLCite \textit{A. Šostak} et al., Commun. Comput. Inf. Sci. 1239, 712--725 (2020; Zbl 1523.68163) Full Text: DOI
Šostak, Alexander; Uljane, Ingrida; Elkins, Aleksandrs On the measure of many-level fuzzy rough approximation for \(L\)-fuzzy sets. (English) Zbl 1512.68380 Kóczy, László T. (ed.) et al., Computational intelligence and mathematics for tackling complex problems. Cham: Springer. Stud. Comput. Intell. 819, 183-190 (2020). MSC: 68T37 03E72 PDFBibTeX XMLCite \textit{A. Šostak} et al., Stud. Comput. Intell. 819, 183--190 (2020; Zbl 1512.68380) Full Text: DOI
Dubey, M. K.; Tiwari, S. P.; Šostak, Alexander Categories of quantale-valued fuzzy automata: determinization and minimization. (English) Zbl 1495.18004 J. Appl. Math. Comput. 63, No. 1-2, 771-785 (2020). Reviewer: Ahmet A. Khusainov (Komsomolsk-om-Amur) MSC: 18B20 68Q45 PDFBibTeX XMLCite \textit{M. K. Dubey} et al., J. Appl. Math. Comput. 63, No. 1--2, 771--785 (2020; Zbl 1495.18004) Full Text: DOI
Kóczy, László T. (ed.); Medina-Moreno, Jesús (ed.); Ramírez-Poussa, Eloísa (ed.); Šostak, Alexander (ed.) Computational intelligence and mathematics for tackling complex problems. (English) Zbl 1415.68006 Studies in Computational Intelligence 819. Cham: Springer (ISBN 978-3-030-16023-4/hbk; 978-3-030-16024-1/ebook). xvii, 200 p. (2020). MSC: 68-02 68Txx 00B15 PDFBibTeX XMLCite \textit{L. T. Kóczy} (ed.) et al., Computational intelligence and mathematics for tackling complex problems. Cham: Springer (2020; Zbl 1415.68006) Full Text: DOI
Šostak, Alexander Some remarks on fuzzy \(k\)-pseudometric spaces. (English) Zbl 1499.54065 Filomat 32, No. 10, 3567-3580 (2018). MSC: 54A40 PDFBibTeX XMLCite \textit{A. Šostak}, Filomat 32, No. 10, 3567--3580 (2018; Zbl 1499.54065) Full Text: DOI
Šostak, Alexander George-Veeramani fuzzy metrics revised. (English) Zbl 1432.03112 Axioms 7, No. 3, Paper No. 60, 6 p. (2018). MSC: 03E72 54A40 54E35 PDFBibTeX XMLCite \textit{A. Šostak}, Axioms 7, No. 3, Paper No. 60, 6 p. (2018; Zbl 1432.03112) Full Text: DOI
Han, Sang-Eon; Šostak, Alexander On the measure of \(M\)-rough approximation of \(L\)-fuzzy sets. (English) Zbl 1398.03178 Soft Comput. 22, No. 12, 3843-3855 (2018). MSC: 03E72 54A40 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{A. Šostak}, Soft Comput. 22, No. 12, 3843--3855 (2018; Zbl 1398.03178) Full Text: DOI
Šostak, Alexander; Uļjane, Ingrīda Bornological structures on many-valued sets. (English) Zbl 1390.54009 Rad Hrvat. Akad. Znan. Umjet. 532, Mat. Znan. 21, 143-168 (2017). Reviewer: Andrzej Świerniak (Gliwice) MSC: 54A40 54C10 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{I. Uļjane}, Rad Hrvat. Akad. Znan. Umjet., Mat. Znan. 532(21), 143--168 (2017; Zbl 1390.54009) Full Text: DOI Link
Šostak, Alexander; Eļkins, Aleksandrs \(L^M\)-valued equalities, \(L^M\)-rough approximation operators and \(ML\)-graded ditopologies. (English) Zbl 1372.54011 Hacet. J. Math. Stat. 46, No. 1, 15-32 (2017). Reviewer: Vladimír Janiš (Banská Bystrica) MSC: 54A40 03E75 46A08 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{A. Eļkins}, Hacet. J. Math. Stat. 46, No. 1, 15--32 (2017; Zbl 1372.54011) Full Text: DOI
Eļkins, Aleksandrs; Šostak, Alexander; Uļjane, Ingrīda On a category of extensional fuzzy rough approximation \(L\)-valued spaces. (English) Zbl 1455.03069 Carvalho, Joao Paulo (ed.) et al., Information processing and management of uncertainty in knowledge-based systems. 16th international conference, IPMU 2016, Eindhoven, The Netherlands, June 20–24, 2016. Proceedings. Part II. Cham: Springer. Commun. Comput. Inf. Sci. 611, 48-60 (2016). MSC: 03E72 54A40 68T37 PDFBibTeX XMLCite \textit{A. Eļkins} et al., Commun. Comput. Inf. Sci. 611, 48--60 (2016; Zbl 1455.03069) Full Text: DOI
Han, Sang-Eon; Šostak, Alexander M-valued measure of roughness for approximation of \(L\)-fuzzy sets and its topological interpretation. (English) Zbl 1462.03022 Merelo, Juan Julian (ed.) et al., Computational intelligence. 6th international joint conference, IJCCI 2014 Rome, Italy, October 22–24, 2014. Revised selected papers. Cham: Springer. Stud. Comput. Intell. 620, 251-266 (2016). MSC: 03E72 54A40 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{A. Šostak}, Stud. Comput. Intell. 620, 251--266 (2016; Zbl 1462.03022) Full Text: DOI
Miñana, Juan-José; Šostak, Alexander Fuzzifying topology induced by a strong fuzzy metric. (English) Zbl 1378.54012 Fuzzy Sets Syst. 300, 24-39 (2016). MSC: 54A40 54E35 PDFBibTeX XMLCite \textit{J.-J. Miñana} and \textit{A. Šostak}, Fuzzy Sets Syst. 300, 24--39 (2016; Zbl 1378.54012) Full Text: DOI
Šostak, Alexander; Uļjane, Ingrīda \(L\)-valued bornologies on powersets. (English) Zbl 1374.46056 Fuzzy Sets Syst. 294, 93-104 (2016). MSC: 46S40 46A17 54A40 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{I. Uļjane}, Fuzzy Sets Syst. 294, 93--104 (2016; Zbl 1374.46056) Full Text: DOI
Dizman, Tugbahan Simsekler; Šostak, Alexander; Yuksel, Saziye Soft ditopological spaces. (English) Zbl 1461.54012 Filomat 30, No. 1, 209-222 (2016). MSC: 54A10 54A40 06D72 PDFBibTeX XMLCite \textit{T. S. Dizman} et al., Filomat 30, No. 1, 209--222 (2016; Zbl 1461.54012) Full Text: DOI arXiv
Grecova, Svetlana; Šostak, Alexander; Uljane, Ingrīda A construction of a fuzzy topology from a strong fuzzy metric. (English) Zbl 1353.54009 Appl. Gen. Topol. 17, No. 2, 105-116 (2016). Reviewer: Vladimír Janiš (Banská Bystrica) MSC: 54A40 PDFBibTeX XMLCite \textit{S. Grecova} et al., Appl. Gen. Topol. 17, No. 2, 105--116 (2016; Zbl 1353.54009) Full Text: DOI
Eļkins, Aleksandrs; Han, Sang-Eon; Šostak, Alexander Variable-range approximate systems induced by many-valued \(L\)-relations. (English) Zbl 1432.03107 Laurent, Anne (ed.) et al., Information processing and management of uncertainty in knowledge-based systems. 15th international conference, IPMU 2014, Montpellier, France, July 15–19, 2014. Proceedings. Part III. Cham: Springer. Commun. Comput. Inf. Sci. 444, 41-50 (2014). MSC: 03E72 06F05 18B99 PDFBibTeX XMLCite \textit{A. Eļkins} et al., Commun. Comput. Inf. Sci. 444, 41--50 (2014; Zbl 1432.03107) Full Text: DOI
Çetkin, Vildan; Šostak, Alexander P.; Aygün, Halis An approach to the concept of soft fuzzy proximity. (English) Zbl 1474.54036 Abstr. Appl. Anal. 2014, Article ID 782583, 9 p. (2014). MSC: 54A40 PDFBibTeX XMLCite \textit{V. Çetkin} et al., Abstr. Appl. Anal. 2014, Article ID 782583, 9 p. (2014; Zbl 1474.54036) Full Text: DOI
Han, Sang-Eon; Kim, In Soo; Šostak, Alexander On approximate-type systems generated by \( L\)-relations. (English) Zbl 1461.03052 Inf. Sci. 281, 8-20 (2014). MSC: 03E72 68T37 PDFBibTeX XMLCite \textit{S.-E. Han} et al., Inf. Sci. 281, 8--20 (2014; Zbl 1461.03052) Full Text: DOI
Šostak, Alexander; Brown, Lawrence M. Categories of fuzzy topology in the context of graded ditopologies on textures. (English) Zbl 1419.54007 Iran. J. Fuzzy Syst. 11, No. 6, 1-20 (2014). MSC: 54A40 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{L. M. Brown}, Iran. J. Fuzzy Syst. 11, No. 6, 1--20 (2014; Zbl 1419.54007) Full Text: Link
Čimoka, Dace; Šostak, Alexander \(L\)-fuzzy syntopogenous structures. I: Fundamentals and application to \(L\)-fuzzy topologies, \(L\)-fuzzy proximities and \(L\)-fuzzy uniformities. (English) Zbl 1314.54004 Fuzzy Sets Syst. 232, 74-97 (2013). MSC: 54A40 PDFBibTeX XMLCite \textit{D. Čimoka} and \textit{A. Šostak}, Fuzzy Sets Syst. 232, 74--97 (2013; Zbl 1314.54004) Full Text: DOI
Mesiar, Radko (ed.); Štěpnička, Martin (ed.); Šostak, Alexander (ed.) Editorial: Fuzzy sets: theory and applications (FSTA 2012). (English) Zbl 1314.00111 Fuzzy Sets Syst. 232, 1-2 (2013). MSC: 00B25 03-06 03E72 06D35 28E10 54A40 91B06 PDFBibTeX XMLCite \textit{R. Mesiar} (ed.) et al., Fuzzy Sets Syst. 232, 1--2 (2013; Zbl 1314.00111) Full Text: DOI
Han, Sang-Eon; Šostak, A. A compression of digital images derived from a Khalimsky topological structure. (English) Zbl 1300.54012 Comput. Appl. Math. 32, No. 3, 521-536 (2013). MSC: 54A10 54C05 54C08 54F65 68U05 68U10 PDFBibTeX XMLCite \textit{S.-E. Han} and \textit{A. Šostak}, Comput. Appl. Math. 32, No. 3, 521--536 (2013; Zbl 1300.54012) Full Text: DOI
Šostak, Alexander Towards the theory of approximate systems: variable range categories. (English) Zbl 1301.03044 Arhangel’skii, Alexander V. (ed.) et al., Proceedings of the international conference on topology and its applications (ICTA 2011), Islamabad, Pakistan, July 4–10, 2011. Cambridge: Cambridge Scientific Publishers (ISBN 978-1-908106-17-9/pbk). 265-284 (2012). Reviewer: Sergejs Solovjovs (Brno) MSC: 03E72 06A15 06F07 18B99 54A40 54B30 PDFBibTeX XMLCite \textit{A. Šostak}, in: Proceedings of the international conference on topology and its applications (ICTA 2011), Islamabad, Pakistan, July 4--10, 2011. Cambridge: Cambridge Scientific Publishers. 265--284 (2012; Zbl 1301.03044)
Varol, Banu Pazar; Shostak, Alexander; Aygün, Halis A new approach to soft topology. (English) Zbl 1276.54007 Hacet. J. Math. Stat. 41, No. 5, 731-741 (2012). Reviewer: Sergejs Solovjovs (Brno) MSC: 54A99 03E72 54A40 18B99 PDFBibTeX XMLCite \textit{B. P. Varol} et al., Hacet. J. Math. Stat. 41, No. 5, 731--741 (2012; Zbl 1276.54007)
Varol, Banu Pazar; Shostak, Alexander; Aygün, Halis Categories related to topology viewed as soft sets. (English) Zbl 1254.54013 Proceedings of the 7th conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011) and 17th annual LFA meeting, Aix-Les-Bains, France, July 18–22, 2011. Amsterdam: Atlantis Press (ISBN 9978-90-78677-00-0). Paper No. 128, 883-890 (2011). MSC: 54A40 18B30 PDFBibTeX XMLCite \textit{B. P. Varol} et al., in: Proceedings of the 7th conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011) and 17th annual LFA meeting, Aix-Les-Bains, France, July 18--22, 2011. Amsterdam: Atlantis Press. Paper No. 128, 883--890 (2011; Zbl 1254.54013) Full Text: DOI
Abel, M.; Šostak, A. Towards the theory of \(L\)-bornological spaces. (English) Zbl 1253.46077 Iran. J. Fuzzy Syst. 8, No. 1, 19-28 (2011). Reviewer: Congxin Wu (Harbin) MSC: 46S40 46A17 PDFBibTeX XMLCite \textit{M. Abel} and \textit{A. Šostak}, Iran. J. Fuzzy Syst. 8, No. 1, 19--28 (2011; Zbl 1253.46077)
Šostak, Alexander Towards the theory of \(\mathbb M\)-approximate systems: Fundamentals and examples. (English) Zbl 1222.54008 Fuzzy Sets Syst. 161, No. 18, 2440-2461 (2010). Reviewer: Javier Gutiérrez García (Bilbao) MSC: 54A40 PDFBibTeX XMLCite \textit{A. Šostak}, Fuzzy Sets Syst. 161, No. 18, 2440--2461 (2010; Zbl 1222.54008) Full Text: DOI
Gutiérrez García, Javier; Kubiak, T.; Šostak, A. P. Ideal-valued topological structures. (English) Zbl 1210.54012 Fuzzy Sets Syst. 161, No. 18, 2380-2388 (2010). Reviewer: Bernhard Behrens (Göteborg) MSC: 54A40 54B30 18B30 PDFBibTeX XMLCite \textit{J. Gutiérrez García} et al., Fuzzy Sets Syst. 161, No. 18, 2380--2388 (2010; Zbl 1210.54012) Full Text: DOI
Chovanec, Ferdinand (ed.); Nánásiová, Olga (ed.); Şostak, Alexander (ed.) Special issue: Fuzzy set theory and applications. Selected papers based on the presentations at the 9th international conference, FSTA 2008, Liptovský Ján, Slovak Republic, February 4–8, 2008. (English) Zbl 1223.03008 Soft Comput. 14, No. 10, 1025-1139 (2010). MSC: 03-06 03E72 00B25 PDFBibTeX XML
Šostak, Alexander On multivalued topologies on \(L\)-powersets of multivalued sets. (English. Russian original) Zbl 1148.18305 J. Math. Sci., New York 144, No. 5, 4527-4534 (2007); translation from Fundam. Prikl. Mat. 11, No. 4, 237-247 (2005). MSC: 18B30 54B30 PDFBibTeX XMLCite \textit{A. Šostak}, J. Math. Sci., New York 144, No. 5, 4527--4534 (2007; Zbl 1148.18305); translation from Fundam. Prikl. Mat. 11, No. 4, 237--247 (2005) Full Text: DOI
Asmuss, Svetlana V.; Šostak, Alexander P. On central algorithms of approximation under fuzzy information. (English) Zbl 1074.41033 Fuzzy Sets Syst. 155, No. 1, 150-163 (2005). MSC: 41A99 PDFBibTeX XMLCite \textit{S. V. Asmuss} and \textit{A. P. Šostak}, Fuzzy Sets Syst. 155, No. 1, 150--163 (2005; Zbl 1074.41033) Full Text: DOI
Uļjane, Ingrǐda; Šostak, Aleksander P. On a category of \(L\)-valued equalities on \(L\)-sets. (English) Zbl 1070.03035 J. Electr. Eng. 55, No. 12/S, 60-63 (2004). MSC: 03E72 PDFBibTeX XMLCite \textit{I. Uļjane} and \textit{A. P. Šostak}, J. Electr. Eng. 55, No. 12/S, 60--63 (2004; Zbl 1070.03035)
Šostak, Alexander P. \(L\)-valued categories generalities and examples related to algebra and topology. (English) Zbl 1068.18001 Gähler, W. (ed.) et al., Categorical structures and their applications. Proceedings of the North-West European category seminar, Berlin, Germany, March 28–29, 2003 . River Edge, NJ: World Scientific (ISBN 981-256-053-X/hbk). 291-311 (2004). Reviewer: Dexue Zhang (Chengdu) MSC: 18A05 03E72 54A40 54E05 54E35 20A05 PDFBibTeX XMLCite \textit{A. P. Šostak}, in: Categorical structures and their applications. Proceedings of the North-West European category seminar, Berlin, Germany, March 28--29, 2003. River Edge, NJ: World Scientific. 291--311 (2004; Zbl 1068.18001)
Kubiak, Tomasz; Šostak, Alexander P. A fuzzification of the category of \(M\)-valued \(L\)-topological spaces. (English) Zbl 1069.54007 Appl. Gen. Topol. 5, No. 2, 137-154 (2004). Reviewer: Eduardo Pascali (Lecce) MSC: 54A40 03E72 18A05 PDFBibTeX XMLCite \textit{T. Kubiak} and \textit{A. P. Šostak}, Appl. Gen. Topol. 5, No. 2, 137--154 (2004; Zbl 1069.54007) Full Text: DOI
Šostaks, Aleksandrs Fuzzy functions as morphisms in an extension of the category of Hutton \(L\)-uniform spaces. (English) Zbl 1047.54001 Proc. Latv. Acad. Sci., Sect. B, Nat. Exact Appl. Sci. 57, No. 3-4, 121-127 (2003). Reviewer: Vladimír Janiš (Banská Bystrica) MSC: 54A40 03E72 54E15 PDFBibTeX XMLCite \textit{A. Šostaks}, Proc. Latv. Acad. Sci., Sect. B, Nat. Exact Appl. Sci. 57, No. 3--4, 121--127 (2003; Zbl 1047.54001)
Šostak, A. P. On some fuzzy categories related to category \(L\)-TOP of \(L\)-topological spaces. (English) Zbl 1052.54005 Rodabaugh, Stephen Ernest (ed.) et al., Topological and algebraic structures in fuzzy sets. A handbook of recent developments in the mathematics of fuzzy sets. Dordrecht: Kluwer Academic Publishers (ISBN 1-4020-1515-1/hbk). Trends Log. Stud. Log. Libr. 20, 337-372 (2003). Reviewer: Bernhard Behrens (Göteborg) MSC: 54A40 03E72 54A05 03G25 18B30 54B30 54B10 54B15 PDFBibTeX XMLCite \textit{A. P. Šostak}, Trends Log. Stud. Log. Libr. 20, 337--372 (2003; Zbl 1052.54005)
Gutiérrez García, J.; de Prada Vicente, M. A.; Šostak, A. P. A unified approach to the concept of fuzzy \(L\)-uniform space. (English) Zbl 1061.54006 Rodabaugh, Stephen Ernest (ed.) et al., Topological and algebraic structures in fuzzy sets. A handbook of recent developments in the mathematics of fuzzy sets. Dordrecht: Kluwer Academic Publishers (ISBN 1-4020-1515-1/hbk). Trends Log. Stud. Log. Libr. 20, 81-114 (2003). Reviewer: Fu-Gui Shi (Beijing) MSC: 54A40 54E15 PDFBibTeX XMLCite \textit{J. Gutiérrez García} et al., Trends Log. Stud. Log. Libr. 20, 81--114 (2003; Zbl 1061.54006)
Šostak, Alexander P. Fuzzy functions and an extension of the category \(L\)-Top of Chang-Goguen \(L\)-topological spaces. (English) Zbl 1019.54006 Simon, Petr (ed.), Proceedings of the 9th Prague topological symposium, Prague, Czech Republic, August 19-25, 2001. Toronto: Topology Atlas. 271-294, electronic only (2002). Reviewer: Jesús Medina Moreno (Malaga) MSC: 54A40 03E72 18A05 PDFBibTeX XMLCite \textit{A. P. Šostak}, in: Proceedings of the 9th Prague topological symposium, Prague, Czech Republic, August 19--25, 2001. Toronto: Topology Atlas. 271--294 (2002; Zbl 1019.54006) Full Text: arXiv EMIS
Höhle, Ulrich; Porst, Hans-E.; Šostak, Alexander P. Fuzzy functions: A fuzzy extension of the category SET and some related categories. (English) Zbl 0977.03028 Appl. Gen. Topol. 1, No. 1, 115-127 (2000). Reviewer: Zhang Dexue (Sichuan) MSC: 03E72 18B99 54A40 PDFBibTeX XMLCite \textit{U. Höhle} et al., Appl. Gen. Topol. 1, No. 1, 115--127 (2000; Zbl 0977.03028) Full Text: DOI
Steprāns, Juris; Šostak, Alexander P. Restricted compactness properties and their preservation under products. (English) Zbl 0962.54020 Topology Appl. 101, No. 3, 213-229 (2000). Reviewer: Miroslav Hušek (Praha) MSC: 54D30 54B10 54A25 54C10 54F45 54A35 PDFBibTeX XMLCite \textit{J. Steprāns} and \textit{A. P. Šostak}, Topology Appl. 101, No. 3, 213--229 (2000; Zbl 0962.54020) Full Text: DOI
Höhle, U.; Šostak, A. P. Axiomatic foundations of fixed-basis fuzzy topology. (English) Zbl 0977.54006 Höhle, Ulrich (ed.) et al., Mathematics of fuzzy sets. Logic, topology, and measure theory. Dordrecht: Kluwer Academic Publishers. Handb. Fuzzy Sets Ser. 3, 123-272 (1999). Reviewer: Liu Yingming (Chengdu) MSC: 54A40 PDFBibTeX XMLCite \textit{U. Höhle} and \textit{A. P. Šostak}, Handb. Fuzzy Sets Ser. 3, 123--272 (1999; Zbl 0977.54006)
Šostak, Alexander Fuzzy categories related to algebra and topology. (English) Zbl 0947.18001 Tatra Mt. Math. Publ. 16, No. 1, 159-185 (1999). Reviewer: Martin Kalina (Bratislava) MSC: 18A05 54A40 20A05 03E72 54E05 54E35 PDFBibTeX XMLCite \textit{A. Šostak}, Tatra Mt. Math. Publ. 16, No. 1, 159--185 (1999; Zbl 0947.18001)
Kalina, Martin (ed.); Šostak, Alexander (ed.) Special issue: Fuzzy analysis and related topics. Including proceedings of the 7th international world congress of the International Fuzzy Systems Association (IFSA’97), Prague, Czech Republic, June 1997. (English) Zbl 0929.00037 Fuzzy Sets Syst. 105, No. 2, 199-309 (1999). MSC: 00B25 03-06 54-06 PDFBibTeX XMLCite \textit{M. Kalina} (ed.) and \textit{A. Šostak} (ed.), Fuzzy Sets Syst. 105, No. 2, 199--309 (1999; Zbl 0929.00037) Full Text: DOI
Asmuss, Svetlana V.; Šostak, Alexander P. Extremal problems of approximation theory in fuzzy contact. (English) Zbl 0956.41012 Fuzzy Sets Syst. 105, No. 2, 249-257 (1999). Reviewer: Raymond Mortini (Metz) MSC: 41A30 46S40 26E50 PDFBibTeX XMLCite \textit{S. V. Asmuss} and \textit{A. P. Šostak}, Fuzzy Sets Syst. 105, No. 2, 249--257 (1999; Zbl 0956.41012) Full Text: DOI
Šostaks, Aleksandrs 5 years of the Latvian Mathematical Society. (English) Zbl 1026.01512 Proc. Latv. Acad. Sci., Sect. B, Nat. Exact Appl. Sci. 52, No. 5, 263-266 (1998). MSC: 01A74 PDFBibTeX XMLCite \textit{A. Šostaks}, Proc. Latv. Acad. Sci., Sect. B, Nat. Exact Appl. Sci. 52, No. 5, 263--266 (1998; Zbl 1026.01512)
Šostak, A.; Szymański, Andrzej On a class of special Namioka spaces. (English) Zbl 0945.54024 Topol. Proc. 22(Summer), 485-499 (1997). MSC: 54E52 54H11 54E18 PDFBibTeX XMLCite \textit{A. Šostak} and \textit{A. Szymański}, Topol. Proc. 22(Summer), 485--499 (1997; Zbl 0945.54024)
Asmuss, Svetlana V.; Šostak, Alexander P. Extremal problems of approximation theory of fuzzy sets. (English) Zbl 1126.41305 Šostaks, A. (ed.), Matemātika. Rīga: Latvijas Universitāte (ISBN 9984-516-04-0). Latv. Univ. Zināt. Raksti 606, 9-18 (1997). MSC: 41A65 46S40 26E50 PDFBibTeX XMLCite \textit{S. V. Asmuss} and \textit{A. P. Šostak}, Latv. Univ. Zināt. Raksti 606, 9--18 (1997; Zbl 1126.41305)
Šostaks, A. (ed.) Mathematics. (Matemātika.) (English, Latvian) Zbl 0904.00009 Latvijas Universitātes Zinātniskie Raksti. 606. Rīga: Latvijas Universitāte. 76 p. (1997). MSC: 00B15 PDFBibTeX XMLCite \textit{A. Šostaks} (ed.), Matemātika (Latvian). Rīga: Latvijas Universitāte (1997; Zbl 0904.00009)
Šostak, Alexander P. Fuzzy syntopogeneous structures. (English) Zbl 0890.54002 Quaest. Math. 20, No. 3, 431-461 (1997). Reviewer: Bernhard Behrens (Göteborg) MSC: 54A40 54A15 54E05 54E15 PDFBibTeX XMLCite \textit{A. P. Šostak}, Quaest. Math. 20, No. 3, 431--461 (1997; Zbl 0890.54002) Full Text: DOI
Kubiak, T.; Šostak, A. Lower set-valued fuzzy topologies. (English) Zbl 0890.54005 Quaest. Math. 20, No. 3, 423-429 (1997). Reviewer: Deng Zike (Changsha) MSC: 54A40 PDFBibTeX XMLCite \textit{T. Kubiak} and \textit{A. Šostak}, Quaest. Math. 20, No. 3, 423--429 (1997; Zbl 0890.54005) Full Text: DOI
Gutiérrez García, Javier; De Prada Vicente, M. A.; Šostak, A. Even fuzzy topologies and related structures. (English) Zbl 0896.54003 Quaest. Math. 20, No. 3, 327-350 (1997). Reviewer: T.Kubiak (Poznań) MSC: 54A40 03E72 54E05 54E15 PDFBibTeX XMLCite \textit{J. Gutiérrez García} et al., Quaest. Math. 20, No. 3, 327--350 (1997; Zbl 0896.54003) Full Text: DOI
Šostak, A. P. Basic structures of fuzzy topology. (English) Zbl 0857.54003 J. Math. Sci., New York 78, No. 6, 662-701 (1996). Reviewer: M.W.Warner (London) MSC: 54A40 54-02 PDFBibTeX XMLCite \textit{A. P. Šostak}, J. Math. Sci., New York 78, No. 6, 662--701 (1996; Zbl 0857.54003) Full Text: DOI
Höhle, Ulrich; Šostak, Alexander A general theory of fuzzy topological spaces. (English) Zbl 0948.54003 Fuzzy Sets Syst. 73, No. 1, 131-149 (1995). MSC: 54A40 PDFBibTeX XMLCite \textit{U. Höhle} and \textit{A. Šostak}, Fuzzy Sets Syst. 73, No. 1, 131--149 (1995; Zbl 0948.54003) Full Text: DOI
Adnadjević, D.; Šostak, A. P. On inductive dimensions for fuzzy topological spaces. (English) Zbl 0867.54004 Fuzzy Sets Syst. 73, No. 1, 5-12 (1995). Reviewer: M.W.Warner (London) MSC: 54A40 PDFBibTeX XMLCite \textit{D. Adnadjević} and \textit{A. P. Šostak}, Fuzzy Sets Syst. 73, No. 1, 5--12 (1995; Zbl 0867.54004) Full Text: DOI
Höhle, U.; Rodabaugh, S. E.; Šostak, A. Editorial to the “Special issue on fuzzy topology”. (English) Zbl 0867.54003 Fuzzy Sets Syst. 73, No. 1, 1-4 (1995). MSC: 54A40 PDFBibTeX XMLCite \textit{U. Höhle} et al., Fuzzy Sets Syst. 73, No. 1, 1--4 (1995; Zbl 0867.54003) Full Text: DOI
Šostak, A. P.; Gvazava, M. V. A note on locally \({\mathcal E}_\tau\)-compact spaces. (English) Zbl 0919.54014 Andima, Susan (ed.) et al., Papers on general topology and applications. Proceedings of the 9th summer conference, Slippery Rock, PA, USA, June 24–26, 1993. New York, NY: New York Academy of Sciences. Ann. N. Y. Acad. Sci. 767, 228-240 (1995). MSC: 54D30 54C55 54D45 PDFBibTeX XMLCite \textit{A. P. Šostak} and \textit{M. V. Gvazava}, in: Papers on general topology and applications. Proceedings of the 9th summer conference, Slippery Rock, PA, USA, June 24--26, 1993. New York, NY: New York Academy of Sciences. 228--240 (1995; Zbl 0919.54014)
Sondore, A.; Šostak, A. On clp-compact and countably clp-compact spaces. (English) Zbl 0917.54030 Šostaks, A. (ed.), Mathematics. Rīga: Latvijas Universitāte, Latv. Univ. Zināt. Raksti. 595, 123-142 (1994). MSC: 54D30 54D20 54G05 54D05 PDFBibTeX XMLCite \textit{A. Sondore} and \textit{A. Šostak}, in: Matemātika. Rīga: Latvijas Universitāte. 123--142 (1994; Zbl 0917.54030)
Gutierrez Garcia, J.; Šostak, Alexander P. On even fuzzy topologies. (English) Zbl 0853.54008 Šostaks, A. (ed.), Mathematics. Rīga: Latvijas Universitāte, Latv. Univ. Zināt. Raksti. 595, 109-122 (1994). MSC: 54A40 03E72 PDFBibTeX XMLCite \textit{J. Gutierrez Garcia} and \textit{A. P. Šostak}, in: Matemātika. Rīga: Latvijas Universitāte. 109--122 (1994; Zbl 0853.54008)
Šostaks, A. (ed.) Mathematics. (Matemātika.) (English) Zbl 0834.00012 Latvijas Universitātes Zinātniskie Raksti. 595. Rīga: Latvijas Universitāte, 187 p. (1994). MSC: 00B15 PDFBibTeX XMLCite \textit{A. Šostaks} (ed.), Matemātika. Rīga: Latvijas Universitāte (1994; Zbl 0834.00012)
Burgin, Mark; Šostak, Alexandr Fuzzification of the theory of continuous functions. (English) Zbl 0828.26015 Fuzzy Sets Syst. 62, No. 1, 71-81 (1994). MSC: 26E50 PDFBibTeX XMLCite \textit{M. Burgin} and \textit{A. Šostak}, Fuzzy Sets Syst. 62, No. 1, 71--81 (1994; Zbl 0828.26015) Full Text: DOI
Bregman, Yu. H.; Shapirovskij, B. E.; Šostak, A. P. A theorem on decomposition into compact-scattered subspaces and cardinality of topological spaces. (English) Zbl 0806.54003 Topology Appl. 57, No. 2-3, 307-316 (1994). Reviewer: A.Błaszczyk (Katowice) MSC: 54A25 54A35 PDFBibTeX XMLCite \textit{Yu. H. Bregman} et al., Topology Appl. 57, No. 2--3, 307--316 (1994; Zbl 0806.54003) Full Text: DOI
Bregman, Yu. H.; Shapirovskij, B. E.; Šostak, A. P. On decomposition of a space into certain subsets and \({\text cl}\)- cardinality of a topological space. (English) Zbl 0806.54002 Topology Appl. 57, No. 2-3, 295-305 (1994). Reviewer: A.Błaszczyk (Katowice) MSC: 54A25 54A35 PDFBibTeX XMLCite \textit{Yu. H. Bregman} et al., Topology Appl. 57, No. 2--3, 295--305 (1994; Zbl 0806.54002) Full Text: DOI
Shteinbuk, Veniamin; Šostak, Alexander On endomorphism semigroups of a fuzzily structured set. (English) Zbl 0861.54004 Kybernetika 28, Suppl., 54-57 (1992). MSC: 54A40 54B30 54H15 PDFBibTeX XMLCite \textit{V. Shteinbuk} and \textit{A. Šostak}, Kybernetika 28, 54--57 (1992; Zbl 0861.54004) Full Text: EuDML Link
Šostak, Alexander P. On stratifiable fuzzy topological spaces. (English) Zbl 0786.54007 Math. Bohem. 117, No. 2, 169-184 (1992). Reviewer: S.Saha (Calcutta) MSC: 54A40 54E20 PDFBibTeX XMLCite \textit{A. P. Šostak}, Math. Bohem. 117, No. 2, 169--184 (1992; Zbl 0786.54007) Full Text: EuDML
Dzhajanbajev, D.; Šostak, A. P. On a fuzzy uniform structure. (English) Zbl 0809.54008 Lepik, Ü. (ed.), Application of topology in algebra and differential geometry. Tartu: Tartu University, Tartu Ülik. Toim., Mat.-Meh.-Alaseid Töid. 940, Matemaatika - ja Mehhaanika-alaseid Töid, 31-36 (1992). MSC: 54A40 54E15 PDFBibTeX XMLCite \textit{D. Dzhajanbajev} and \textit{A. P. Šostak}, in: Application of topology in algebra and differential geometry. Tartu: Tartu University. 31--36 (1992; Zbl 0809.54008)
Markin, Sergej A.; Šostak, Alexander P. Another approach to the concept of a fuzzy proximity. (English) Zbl 0789.54004 Topology, Proc. 5th Int. Meet., Lecce/Italy 1990, Suppl. Rend. Circ. Mat. Palermo, II. Ser. 29, 529-551 (1992). Reviewer: R.Lowen MSC: 54A40 54E05 PDFBibTeX XMLCite \textit{S. A. Markin} and \textit{A. P. Šostak}, in: V convegno internazionale di topologia in Italia, Lecce - Otranto, 17-21 Settembre, 1990. Palermo: Circolo Matematico di Palermo. 529--551 (1992; Zbl 0789.54004)
Shteinbuk, V. B.; Šostak, A. P. On semigroups of continuous transformations of fuzzily structured sets. (English) Zbl 0761.54006 Semigroup Forum 43, No. 2, 135-145 (1991). Reviewer: J.Chvalina (Brno) MSC: 54A40 54H15 20M20 PDFBibTeX XMLCite \textit{V. B. Shteinbuk} and \textit{A. P. Šostak}, Semigroup Forum 43, No. 2, 135--145 (1991; Zbl 0761.54006) Full Text: DOI EuDML
Pujate, L.; Šostak, A. On zero-dimensionality in fuzzy topology. (English) Zbl 0724.54010 Serdica 16, No. 3-4, 285-288 (1990). Reviewer: T.Kubiak (Grahamstown) MSC: 54A40 54F50 PDFBibTeX XMLCite \textit{L. Pujate} and \textit{A. Šostak}, Serdica 16, No. 3--4, 285--288 (1990; Zbl 0724.54010)
Šostak, A. P. On cardinal functions of fuzzy sets in fuzzy topological spaces. I. (English) Zbl 0718.54016 Rad. Mat. 6, No. 2, 249-263 (1990). Reviewer: A.J.Klein (Youngstown) MSC: 54A40 54A25 PDFBibTeX XMLCite \textit{A. P. Šostak}, Rad. Mat. 6, No. 2, 249--263 (1990; Zbl 0718.54016)
Šostak, A. P. On the neighbourhood structure of fuzzy topological spaces. (English) Zbl 0713.54008 Zb. Rad. Filoz. Fak. Nišu, Ser. Mat. 4, 7-14 (1990). Reviewer: A.J.Klein MSC: 54A40 PDFBibTeX XMLCite \textit{A. P. Šostak}, Zb. Rad. Filoz. Fak. Nišu, Ser. Mat. 4, 7--14 (1990; Zbl 0713.54008)
Shostak, Aleksander; Dzhayanbaev, D. On completeness and precompactness spectra of fuzzy sets in fuzzy uniform spaces. (English) Zbl 0697.54005 Commentat. Math. Univ. Carol. 31, No. 1, 149-157 (1990). MSC: 54A40 54E15 PDFBibTeX XMLCite \textit{A. Shostak} and \textit{D. Dzhayanbaev}, Commentat. Math. Univ. Carol. 31, No. 1, 149--157 (1990; Zbl 0697.54005) Full Text: EuDML
Šostak, A. Fuzzy cardinals and cardinalities of fuzzy sets. (Russian. English summary) Zbl 0800.04006 Trejnanis, M. (ed.), Algebra and discrete mathematics: Applied problems in information science. Collection of scientific works. Riga: Latvijskij Gosudarstvennyj Universitet Im. P. Stuchki, 137-144 (1989). MSC: 03E72 03E10 PDFBibTeX XML
Shostak, A. P. Two decades of fuzzy topology: Basic ideas, notions, and results. (English. Russian original) Zbl 0716.54004 Russ. Math. Surv. 44, No. 6, 125-186 (1989); translation from Usp. Mat. Nauk 44, No. 6(270), 99-147 (1989). Reviewer: T.Kubiak MSC: 54A40 PDFBibTeX XMLCite \textit{A. P. Shostak}, Russ. Math. Surv. 44, No. 6, 125--186 (1989; Zbl 0716.54004); translation from Usp. Mat. Nauk 44, No. 6(270), 99--147 (1989) Full Text: DOI
Šostak, A. On the concept of E-regularity for fuzzy topology. (English) Zbl 0714.54004 Mat. Vesn. 41, No. 3, 199-209 (1989). Reviewer: A.J.Klein MSC: 54A40 54D15 PDFBibTeX XMLCite \textit{A. Šostak}, Mat. Vesn. 41, No. 3, 199--209 (1989; Zbl 0714.54004)
Shostak, A. P. On some modifications of fuzzy topology. (English) Zbl 0705.54007 Mat. Vesn. 41, No. 1, 51-64 (1989). Reviewer: T.Kubiak MSC: 54A40 54D20 54D30 PDFBibTeX XMLCite \textit{A. P. Shostak}, Mat. Vesn. 41, No. 1, 51--64 (1989; Zbl 0705.54007)
Shostak, A. P. On the spectrum and degree of hereditary Lindelöfness of fuzzy topological spaces. (Russian) Zbl 0705.54006 Latv. Mat. Ezheg. 33, 213-220 (1989). Reviewer: D.Adnadjević MSC: 54A40 54D20 PDFBibTeX XMLCite \textit{A. P. Shostak}, Latv. Mat. Ezheg. 33, 213--220 (1989; Zbl 0705.54006)
Shostak, A. P. On degrees of Lindelöfness and countable compactness of fuzzy sets in fuzzy topological spaces. (Russian) Zbl 0705.54005 Latv. Mat. Ezheg. 33, 207-212 (1989). Reviewer: D.Adnadjević MSC: 54A40 54D20 PDFBibTeX XMLCite \textit{A. P. Shostak}, Latv. Mat. Ezheg. 33, 207--212 (1989; Zbl 0705.54005)
Shostak, A. P. Fuzzy topologies on spaces of probabilistic measures. (Russian) Zbl 0768.54007 Topological spaces and their mappings, Collect. Sci. Works, Riga, 145-172 (1989). Reviewer: A.J.Klein (Youngstown) MSC: 54A40 28A33 60A10 54B99 PDFBibTeX XMLCite \textit{A. P. Shostak}, in: Topologicheskie prostranstva i ikh otobrazheniya. Sbornik nauchnykh trudov. Riga: Latvijskij Gosudarstvennyj Universitet Im. P. Stuchki. 145--172 (1989; Zbl 0768.54007)
Shostak, A. P. Connectedness degree of fuzzy sets in fuzzy topological spaces. (Russian) Zbl 0725.54008 Mat. Vesn. 40, No. 2, 159-171 (1988). MSC: 54A40 54D05 PDFBibTeX XMLCite \textit{A. P. Shostak}, Mat. Vesn. 40, No. 2, 159--171 (1988; Zbl 0725.54008)
Šostak, A. P. On a category for fuzzy topology. (English) Zbl 0685.54006 Zb. Rad. Filoz. Fak. Nišu, Ser. Mat. 2, 61-67 (1988). Reviewer: R.Nakagawa MSC: 54A40 54B30 PDFBibTeX XMLCite \textit{A. P. Šostak}, Zb. Rad. Filoz. Fak. Nišu, Ser. Mat. 2, 61--67 (1988; Zbl 0685.54006)
Shostak, A. P. The compactness degree of fuzzy subsets in fuzzy topological spaces. (Russian) Zbl 0668.54005 Latv. Mat. Ezheg. 32, 208-228 (1988). Reviewer: A.Shostak MSC: 54A40 54D30 PDFBibTeX XMLCite \textit{A. P. Shostak}, Latv. Mat. Ezheg. 32, 208--228 (1988; Zbl 0668.54005)
Shostak, A. P. On compactness and connectedness degrees of fuzzy sets in fuzzy topological spaces. (English) Zbl 0638.54008 General topology and its relations to modern analysis and algebra VI, Proc. 6th Symp., Prague/Czech. 1986, Res. Expo. Math. 16, 519-532 (1988). Reviewer: S.Sessa MSC: 54D40 54D05 54D30 PDFBibTeX XML
Shostak, A. P. Coreflexions in categories of fuzzy topological spaces. (Russian. English summary) Zbl 0626.54013 Continuous functions on topological spaces, Collect. sci. Works, Riga 1986, 159-165 (1986). MSC: 54B30 54A40 18B30 PDFBibTeX XML
Bregman, Yu. Kh.; Shostak, A. P.; Junnila, H. A description of stratifiable and \(M_ 1\)-spaces by means of inverse systems. (Russian. English summary) Zbl 0625.54035 Continuous functions on topological spaces, Collect. sci. Works, Riga 1986, 36-44 (1986). MSC: 54E20 54E18 54B35 PDFBibTeX XML
Šostak, A. P. On a fuzzy topological structure. (English) Zbl 0638.54007 Rend. Circ. Mat. Palermo, II. Ser. Suppl. 11, 89-103 (1985). Reviewer: A.J.Klein MSC: 54A40 54B30 PDFBibTeX XMLCite \textit{A. P. Šostak}, Suppl. Rend. Circ. Mat. Palermo (2) 11, 89--103 (1985; Zbl 0638.54007)
Shostak, A. P. Fuzzy unit interval and a functional characterization of fuzzy stratifiable spaces. (Russian. English summary) Zbl 0618.54006 Topologicheskie Prostranstva Otobrazheniya 1985, 158-164 (1985). MSC: 54A40 54E20 PDFBibTeX XMLCite \textit{A. P. Shostak}, Topologicheskie Prostranstva Otobrazheniya 1985, 158--164 (1985; Zbl 0618.54006)
Shostak, A. P. A fuzzy modification of a linearly ordered space. (English) Zbl 0605.54007 Topology theory and applications, 5th Colloq., Eger/Hung. 1983, Colloq. Math. Soc. János Bolyai 41, 581-604 (1985). Reviewer: D.Adnadjević MSC: 54A40 54F05 54A25 54E35 PDFBibTeX XML
Shostak, A. A fuzzy modification of the category of linearly ordered spaces. (English) Zbl 0594.54003 Commentat. Math. Univ. Carol. 26, 421-442 (1985). Reviewer: A.J.Klein MSC: 54A40 54B30 54F05 PDFBibTeX XMLCite \textit{A. Shostak}, Commentat. Math. Univ. Carol. 26, 421--442 (1985; Zbl 0594.54003) Full Text: EuDML
Shostak, A. P. Some remarks about bijections onto metric spaces. (English) Zbl 0559.54023 Czech. Math. J. 34(109), 227-238 (1984). Reviewer: C.R.Borges MSC: 54E20 54B35 54D20 PDFBibTeX XMLCite \textit{A. P. Shostak}, Czech. Math. J. 34(109), 227--238 (1984; Zbl 0559.54023) Full Text: EuDML
Bregman, Yu. K.; Shapirovskij, B. Eh.; Shostak, A. P. On partition of topological spaces. (English) Zbl 0539.54005 Čas. Pěst. Mat. 109, 27-53 (1984). Reviewer: C.R.Borges MSC: 54C25 54A35 PDFBibTeX XMLCite \textit{Yu. K. Bregman} et al., Čas. Pěstování Mat. 109, 27--53 (1984; Zbl 0539.54005) Full Text: EuDML
Shostak, A. P. On the stratification test of metrizability of topological spaces. (Russian. English summary) Zbl 0562.54040 Topologicheskie Prostranstva Otobrazheniya 1983, 147-152 (1983). MSC: 54E35 54E20 PDFBibTeX XMLCite \textit{A. P. Shostak}, Topologicheskie Prostranstva Otobrazheniya 1983, 147--152 (1983; Zbl 0562.54040)
Čerin, Z. T.; Šostak, A. P. Fundamental and approximative uniformity on the hyperspace. (English) Zbl 0503.54010 Glas. Mat., III. Ser. 16(36), 339-359 (1981). MSC: 54B20 54E15 54C56 PDFBibTeX XMLCite \textit{Z. T. Čerin} and \textit{A. P. Šostak}, Glas. Mat., III. Ser. 16(36), 339--359 (1981; Zbl 0503.54010)
Mardesic, S.; Shostak, A. P. On the homotopy type of ANR’s for p-Lindelöf spaces. (Russian) Zbl 0478.54010 Topologicheskie Prostranstva Otobrazheniya 5, 124-129 (1981). MSC: 54C55 54D20 55M15 55P15 PDFBibTeX XML
Mardesic, S.; Shostak, A. On perfect inverse images of lacy spaces. (English. Russian original) Zbl 0488.54008 Russ. Math. Surv. 35, No. 3, 99-108 (1980); translation from Usp. Mat. Nauk 35, No. 3(213), 84-93 (1980). MSC: 54C55 54C10 55P15 PDFBibTeX XMLCite \textit{S. Mardesic} and \textit{A. Shostak}, Russ. Math. Surv. 35, No. 3, 99--108 (1980; Zbl 0488.54008); translation from Usp. Mat. Nauk 35, No. 3(213), 84--93 (1980) Full Text: DOI