Janusz Matkowski

2.5k total citations
175 papers, 1.6k citations indexed

About

Janusz Matkowski is a scholar working on Applied Mathematics, Computational Theory and Mathematics and Mathematical Physics. According to data from OpenAlex, Janusz Matkowski has authored 175 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 151 papers in Applied Mathematics, 50 papers in Computational Theory and Mathematics and 47 papers in Mathematical Physics. Recurrent topics in Janusz Matkowski's work include Functional Equations Stability Results (124 papers), Optimization and Variational Analysis (44 papers) and Mathematical Inequalities and Applications (37 papers). Janusz Matkowski is often cited by papers focused on Functional Equations Stability Results (124 papers), Optimization and Variational Analysis (44 papers) and Mathematical Inequalities and Applications (37 papers). Janusz Matkowski collaborates with scholars based in Poland, Czechia and Austria. Janusz Matkowski's co-authors include Andrzej S. Nowak, Witold Jarczyk, Kazimierz Nikodem, Jacek Jachymski, Nelson Merentes, Anna Jaśkiewicz, Weinian Zhang, Slavko Simić, Wei Zhang and Mowaffaq Hajja and has published in prestigious journals such as SHILAP Revista de lepidopterología, Fuzzy Sets and Systems and Journal of Mathematical Analysis and Applications.

In The Last Decade

Janusz Matkowski

151 papers receiving 1.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Janusz Matkowski Poland 18 980 649 360 319 211 175 1.6k
M‎. ‎Eshaghi Gordji Iran 26 1.8k 1.9× 849 1.3× 763 2.1× 104 0.3× 302 1.4× 202 2.4k
Christer Borell Sweden 15 752 0.8× 199 0.3× 357 1.0× 221 0.7× 88 0.4× 29 1.3k
Brailey Sims Australia 16 402 0.4× 1.5k 2.3× 508 1.4× 845 2.6× 203 1.0× 52 1.9k
Constantin P. Niculescu Romania 14 1.1k 1.1× 291 0.4× 180 0.5× 311 1.0× 60 0.3× 76 1.4k
Marián Fabian Czechia 19 653 0.7× 507 0.8× 1.1k 2.9× 739 2.3× 210 1.0× 91 1.5k
Mohamed A. Khamsi United States 27 646 0.7× 2.0k 3.0× 382 1.1× 1.4k 4.4× 320 1.5× 126 2.3k
Zsolt Páles Hungary 25 1.6k 1.6× 404 0.6× 343 1.0× 660 2.1× 394 1.9× 173 2.0k
Vyacheslav V. Chistyakov Russia 16 352 0.4× 543 0.8× 268 0.7× 133 0.4× 29 0.1× 63 805
Carlo Sinestrari Italy 16 954 1.0× 573 0.9× 244 0.7× 372 1.2× 82 0.4× 42 1.3k
Alexander J. Zaslavski Israel 23 493 0.5× 1.0k 1.6× 277 0.8× 1.5k 4.8× 768 3.6× 272 2.0k

Countries citing papers authored by Janusz Matkowski

Since Specialization
Citations

This map shows the geographic impact of Janusz Matkowski'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 Janusz Matkowski with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Janusz Matkowski more than expected).

Fields of papers citing papers by Janusz Matkowski

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Janusz Matkowski. 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 Janusz Matkowski. The network helps show where Janusz Matkowski may publish in the future.

Co-authorship network of co-authors of Janusz Matkowski

This figure shows the co-authorship network connecting the top 25 collaborators of Janusz Matkowski. A scholar is included among the top collaborators of Janusz Matkowski 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 Janusz Matkowski. Janusz Matkowski 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.
Matkowski, Janusz, et al.. (2025). Rational means, weak associativity of means, invariance with respect to mean-type and t-(norm,conorm) mappings and applications. Fuzzy Sets and Systems. 508. 109334–109334. 1 indexed citations
2.
Matkowski, Janusz. (2023). A generalization of the Goebel–Kirk fixed point theorem for asymptotically nonexpansive mappings. Journal of Fixed Point Theory and Applications. 25(3). 2 indexed citations
3.
Matkowski, Janusz & Paweł Wójcik. (2020). Sandwich results for periodicity and conjugacy. Aequationes Mathematicae. 94(2). 381–391.
4.
Matkowski, Janusz. (2013). Subhomogeneity and subadditivity of theLp-norm like functionals. Journal of Mathematical Analysis and Applications. 404(1). 172–184. 2 indexed citations
5.
Matkowski, Janusz. (2012). The Pexider type generalization of the Minkowski inequality. Journal of Mathematical Analysis and Applications. 393(1). 298–310. 3 indexed citations
6.
7.
Matkowski, Janusz. (2011). Uniformly bounded composition operators between general Lipschitz function normed spaces. Topological Methods in Nonlinear Analysis. 38(2). 395–405. 14 indexed citations
8.
Acosta, A. de, et al.. (2010). Uniformly continuous composition operator in the space of φ-variation functions in the sense of Riesz. Fasciculi Mathematici. 5–11. 6 indexed citations
9.
Matkowski, Janusz. (2008). Iteration groups, commuting functions and simultaneous systems of linear functional equations. SHILAP Revista de lepidopterología. 2 indexed citations
10.
Matkowski, Janusz, et al.. (2007). A simultaneous system of functional inequalities and mappings which are weakly of a constant sign.. Journal of Inequalities in Pure & Applied Mathematics. 8(2).
11.
Matkowski, Janusz. (2005). Lagrangian mean-type mappings for which the arithmetic mean is invariant. Journal of Mathematical Analysis and Applications. 309(1). 15–24. 24 indexed citations
12.
Matkowski, Janusz. (2004). The converse theorem for Minkowski's inequality. Indagationes Mathematicae. 15(1). 73–83. 7 indexed citations
13.
Jarczyk, Witold, et al.. (2003). Cocycles of continuous iteration semigroups. Bulletin of The Polish Academy of Sciences Mathematics. 51(2). 185–197. 11 indexed citations
14.
Jarczyk, Witold & Janusz Matkowski. (2002). On Mulholland’s inequality. Proceedings of the American Mathematical Society. 130(11). 3243–3247. 15 indexed citations
15.
Matkowski, Janusz, et al.. (2001). On a Problem of Alsina Again. Journal of Mathematical Analysis and Applications. 254(2). 627–635. 2 indexed citations
16.
Baron, Karol, Janusz Matkowski, & Kazimierz Nikodem. (1994). A sandwich with convexity.. 5(1). 139–144. 17 indexed citations
17.
Matkowski, Janusz, et al.. (1993). On subadditive functions. Proceedings of the American Mathematical Society. 119(1). 187–197. 27 indexed citations
18.
Matkowski, Janusz, et al.. (1993). Geometrical convexity and generalizations of the Bohr-Mollerup theorem on the gamma function.. 4(2). 153–160. 12 indexed citations
19.
Matkowski, Janusz. (1990). The converse of the Minkowski’s inequality theorem and its generalization. Proceedings of the American Mathematical Society. 109(3). 663–675. 26 indexed citations
20.
Matkowski, Janusz, et al.. (1986). Some remarks on a problem of C. Alsina.. Hispana. 10(3). 199–212. 1 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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