Alexander Šostak

1.6k total citations
59 papers, 725 citations indexed

About

Alexander Šostak is a scholar working on Management Science and Operations Research, Computational Theory and Mathematics and Geometry and Topology. According to data from OpenAlex, Alexander Šostak has authored 59 papers receiving a total of 725 indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Management Science and Operations Research, 33 papers in Computational Theory and Mathematics and 22 papers in Geometry and Topology. Recurrent topics in Alexander Šostak's work include Fuzzy and Soft Set Theory (42 papers), Advanced Algebra and Logic (25 papers) and Fixed Point Theorems Analysis (20 papers). Alexander Šostak is often cited by papers focused on Fuzzy and Soft Set Theory (42 papers), Advanced Algebra and Logic (25 papers) and Fixed Point Theorems Analysis (20 papers). Alexander Šostak collaborates with scholars based in Latvia, Türkiye and Spain. Alexander Šostak's co-authors include H. Ulrich, Tomasz Kubiak, Sang-Eon Han, Juan-José Miñana, L. M. Brown, Halis Aygün, Vildan Çetkin, S. P. Tiwari, Óscar Valero and Juris Steprāns and has published in prestigious journals such as Information Sciences, Fuzzy Sets and Systems and Soft Computing.

In The Last Decade

Alexander Šostak

52 papers receiving 648 citations

Peers

Alexander Šostak
Zhen-Yu Xiu China
Dexue Zhang China
Óscar Valero Spain
Luoshan Xu China
Nehad N. Morsi Egypt
Richard H. Warren United States
Won Keun Min South Korea
Qiu Jin China
Nayyar Mehmood Pakistan
A.S. Mashhour Egypt
Zhen-Yu Xiu China
Alexander Šostak
Citations per year, relative to Alexander Šostak Alexander Šostak (= 1×) peers Zhen-Yu Xiu

Countries citing papers authored by Alexander Šostak

Since Specialization
Citations

This map shows the geographic impact of Alexander Šostak's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Alexander Šostak with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alexander Šostak more than expected).

Fields of papers citing papers by Alexander Šostak

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alexander Šostak. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Alexander Šostak. The network helps show where Alexander Šostak may publish in the future.

Co-authorship network of co-authors of Alexander Šostak

This figure shows the co-authorship network connecting the top 25 collaborators of Alexander Šostak. A scholar is included among the top collaborators of Alexander Šostak based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Alexander Šostak. Alexander Šostak is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Šostak, Alexander, et al.. (2023). Two kinds of parameterized metrics: Construction, topological properties and applications. Topology and its Applications. 330. 108488–108488.
2.
Šostak, Alexander, et al.. (2023). Fuzzy Metrics in Terms of Fuzzy Relations. Mathematics. 11(16). 3528–3528. 1 indexed citations
3.
Šostak, Alexander, et al.. (2023). On Topological and Metric Properties of ⊕-sb-Metric Spaces. Mathematics. 11(19). 4090–4090. 1 indexed citations
4.
Šostak, Alexander, et al.. (2022). Fuzzy Extension of Crisp Metric by Means of Fuzzy Equivalence Relation. Mathematics. 10(24). 4648–4648. 1 indexed citations
5.
Šostak, Alexander, et al.. (2021). A new definition of fuzzy k-pseudo metric and its induced fuzzifying structures. Iranian journal of fuzzy systems. 18(6). 55–66. 3 indexed citations
6.
Šostak, Alexander, et al.. (2021). Pointwise k-Pseudo Metric Space. Mathematics. 9(19). 2505–2505. 3 indexed citations
7.
Šostak, Alexander, et al.. (2021). Gradation of Fuzzy Preconcept Lattices. Axioms. 10(1). 41–41. 1 indexed citations
8.
Šostak, Alexander, et al.. (2020). On Metric-Type Spaces Based on Extended T-Conorms. Mathematics. 8(7). 1097–1097. 7 indexed citations
9.
Šostak, Alexander, et al.. (2017). LM-valued equalities, LM-rough approximation operators and ML-graded ditopologies. Hacettepe Journal of Mathematics and Statistics. 1(46). 3 indexed citations
10.
Šostak, Alexander, et al.. (2016). Soft ditopological spaces. Digital Object Identifier (DOI) Repository Serbia (National Library of Serbia). 3 indexed citations
11.
Šostak, Alexander, et al.. (2015). L -valued bornologies on powersets. Fuzzy Sets and Systems. 294. 93–104. 9 indexed citations
12.
Šostak, Alexander & L. M. Brown. (2014). CATEGORIES OF FUZZY TOPOLOGY IN THE CONTEXT OF GRADED DITOPOLOGIES ON TEXTURES. Iranian journal of fuzzy systems. 11(6). 1–20. 8 indexed citations
13.
Çetkin, Vildan, Alexander Šostak, & Halis Aygün. (2014). An Approach to the Concept of Soft Fuzzy Proximity. Abstract and Applied Analysis. 2014. 1–9. 10 indexed citations
14.
Šostak, Alexander. (2010). Towards the theory of M-approximate systems: Fundamentals and examples. Fuzzy Sets and Systems. 161(18). 2440–2461. 14 indexed citations
15.
Šostak, Alexander, et al.. (1995). On inductive dimensions for fuzzy topological spaces. Fuzzy Sets and Systems. 73(1). 5–12. 2 indexed citations
16.
Šostak, Alexander, et al.. (1994). A theorem on decomposition into compact-scattered subspaces and cardinality of topological spaces. Topology and its Applications. 57(2-3). 307–316. 1 indexed citations
17.
Šostak, Alexander, et al.. (1992). On endomorphism semigroups of a fuzzily structured set. Kybernetika. 28. 54–57. 1 indexed citations
18.
Šostak, Alexander. (1992). On stratifiable fuzzy topological spaces. Mathematica Bohemica. 117(2). 169–184. 2 indexed citations
19.
Šostak, Alexander, et al.. (1990). On completeness and precompactness spectra of fuzzy sets in fuzzy uniform spaces. Commentationes Mathematicae Universitatis Carolinae. 31(1). 149–157. 2 indexed citations
20.
Šostak, Alexander. (1985). A fuzzy modification of the category of linearly ordered spaces. Commentationes Mathematicae Universitatis Carolinae. 26(3). 421–442. 5 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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