Edit Profile (opens in new tab) Matkowski, Janusz Co-Author Distance Author ID: matkowski.janusz Published as: Matkowski, Janusz; Matkowski, J.; Matkowski, Ianusz more...less Documents Indexed: 267 Publications since 1969, including 3 Additional arXiv Preprints 3 Contributions as Editor Reviewing Activity: 171 Reviews Co-Authors: 76 Co-Authors with 144 Joint Publications 1,327 Co-Co-Authors all top 5 Co-Authors 126 single-authored 22 Kahlig, Peter 12 Merentes, Nelson J. 10 Głazowska, Dorota 9 Wróbel, Małgorzata 6 Jarczyk, Witold 5 Baron, Karol 5 Guerrero, José Atilio 5 Himmel, Martin 5 Rätz, Jürg 4 Krassowska, Dorota 4 Li, Lin 4 Małolepszy, Tomasz 4 Nikodem, Kazimierz 4 Zhang, Weinian 3 Devillet, Jimmy 3 Gronau, Detlef 3 Jaśkiewicz, Anna 3 Kominek, Zygfryd 3 Leonetti, Paolo 3 Miś, Jerzy 3 Nowak, Andrzej S. 3 Pasteczka, Paweł 3 Pycia, Marek 3 Świątkowski, Tadeusz 3 Tringali, Salvatore 2 Banaś, Józef 2 Bojarski, Jacek 2 Izumi, Hideaki 2 Jarczyk, Justyna 2 Matkowska, Anna 2 Okrzesik, Jolanta 2 Sablik, Maciej 2 Sánchez, José Luis 2 Singh, Shyam Lal 1 Alzer, Horst 1 Aziz, Wadie 1 Azócar, Antonio 1 Benedykt, Z. 1 Błasińska-Lesk, J. 1 Bullen, Peter S. 1 Domsta, Joachim 1 Dyjak, Czesław 1 Ger, Roman 1 Guzik, Grzegorz 1 Hajja, Mowaffaq 1 Jachymsky, Jacek R. 1 Jelínek, Jiří 1 Kuczma, Marek 1 Lara, Teodoro 1 Leiva, Hugo 1 Lichawski, Kazimierz 1 Liu, Liu 1 Mateu, Jorge 1 Merents, Nelson 1 Misiewicz, Jolanta K. 1 Neuman, Edward 1 Nowak, Andrzej S. 1 Nowicka, Monika 1 Oginska, Wanda 1 Páles, Zsolt 1 Pawlikowska, Iwona 1 Pinto, Manuel 1 Porcu, Emilio 1 Quintero, Roy 1 Sadarangani, Kishin B. 1 Sharkovs’kyĭ, Oleksandr Mykolaĭovych 1 Simić, Slavko 1 Ślepak, Wojciech 1 Stettner, Łukasz 1 Wegrzyk, Roman 1 Witkowski, Alfred 1 Wójcik, Paweł 1 Wróbel, Małgorzta 1 Yu, Zhiheng 1 Zdun, Marek Cezary 1 Zgraja, Tomasz 1 Zhang, Qian all top 5 Serials 32 Aequationes Mathematicae 14 Journal of Mathematical Analysis and Applications 14 Annales Polonici Mathematici 12 Publicationes Mathematicae Debrecen 9 Results in Mathematics 8 Demonstratio Mathematica 7 Annales Mathematicae Silesianae 6 Proceedings of the American Mathematical Society 6 Grazer Mathematische Berichte 6 Opuscula Mathematica 5 Colloquium Mathematicum 5 Zeszyty Naukowe Politechniki Łódzkiej. Matematyka 5 Journal of Difference Equations and Applications 5 Mathematical Inequalities & Applications 4 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 4 Acta Mathematica Hungarica 4 Journal of Applied Analysis 4 Rocznik Naukowo-Dydaktyczny. Prace Matematyczne 4 Central European Journal of Mathematics 3 Fasciculi Mathematici 3 Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös Nominatae. Sectio Computatorica 3 Prace Naukowe Uniwersytetu Śląskiego w Katowicach. Annales Mathematicae Silesianae 3 Mathematica Pannonica 3 Bulletin de l’Académie Polonaise des Sciences, Série des Sciences Mathématiques, Astronomiques et Physiques 2 Acta Universitatis Carolinae. Mathematica et Physica 2 Revue Roumaine de Mathématiques Pures et Appliquées 2 Acta Scientiarum Mathematicarum 2 Archiv der Mathematik 2 Indian Journal of Mathematics 2 Mathematische Nachrichten 2 Sitzungsberichte. Abteilung II. Österreichische Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse 2 Real Analysis Exchange 2 Bulletin of the Korean Mathematical Society 2 Bulletin of the Polish Academy of Sciences, Mathematics 2 Indagationes Mathematicae. New Series 2 Journal of Convex Analysis 2 Journal of Fixed Point Theory and Applications 2 Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Prace Matematyczne 2 Journal of Applied Mathematics and Computational Mechanics 1 Bulletin of the Australian Mathematical Society 1 Periodica Mathematica Hungarica 1 Rocky Mountain Journal of Mathematics 1 Studia Mathematica 1 Zeitschrift für Angewandte Mathematik und Mechanik (ZAMM) 1 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg 1 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica 1 Archivum Mathematicum 1 Bulletin Mathématique de la Société des Sciences Mathématiques de la République Socialiste de Roumanie. Nouvelle Série 1 Časopis Pro Pěstování Matematiky 1 Dissertationes Mathematicae 1 Fundamenta Mathematicae 1 Funkcialaj Ekvacioj. Serio Internacia 1 Fuzzy Sets and Systems 1 Hiroshima Mathematical Journal 1 International Journal of Mathematics and Mathematical Sciences 1 Manuscripta Mathematica 1 Mathematica Japonica 1 Mathematics of Operations Research 1 Mathematica Slovaca 1 Proceedings of the Edinburgh Mathematical Society. Series II 1 Publications de l’Institut Mathématique. Nouvelle Série 1 Stochastica 1 Topology and its Applications 1 Comptes Rendus Mathématiques de l’Académie des Sciences 1 Operations Research Letters 1 Facta Universitatis. Series Mathematics and Informatics 1 Applied Mathematics Letters 1 Annals of Operations Research 1 Mathematica Bohemica 1 Glasnik Matematički. Serija III 1 Acta Mathematica Sinica. New Series 1 Chinese Science Bulletin 1 Topological Methods in Nonlinear Analysis 1 Applicationes Mathematicae 1 Economic Theory 1 Anzeiger. Abteilung II. Österreichische Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse 1 European Series in Applied and Industrial Mathematics (ESAIM): Proceedings 1 Stochastic Environmental Research and Risk Assessment 1 Far East Journal of Mathematical Sciences 1 JIPAM. Journal of Inequalities in Pure & Applied Mathematics 1 Discussiones Mathematicae. Differential Inclusions, Control and Optimization 1 Journal of Function Spaces and Applications 1 Sarajevo Journal of Mathematics 1 Bollettino della Unione Matematica Italiana. Series V. A 1 International Mathematical Forum 1 Journal of Mathematical Inequalities 1 Banach Journal of Mathematical Analysis 1 Commentationes Mathematicae 1 Annals of Functional Analysis 1 Journal of Classical Analysis 1 Journal of Function Spaces 1 Nonlinear Analysis. Theory, Methods & Applications 1 European Series in Applied and Industrial Mathematics (ESAIM): Proceedings and Surveys all top 5 Fields 178 Difference and functional equations (39-XX) 152 Real functions (26-XX) 40 Operator theory (47-XX) 29 Functional analysis (46-XX) 16 General topology (54-XX) 11 Special functions (33-XX) 9 Functions of a complex variable (30-XX) 7 Measure and integration (28-XX) 6 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 5 Operations research, mathematical programming (90-XX) 4 Ordinary differential equations (34-XX) 4 Probability theory and stochastic processes (60-XX) 2 General and overarching topics; collections (00-XX) 2 Dynamical systems and ergodic theory (37-XX) 2 Sequences, series, summability (40-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Systems theory; control (93-XX) 1 Number theory (11-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Topological groups, Lie groups (22-XX) 1 Geometry (51-XX) 1 Convex and discrete geometry (52-XX) 1 Differential geometry (53-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Statistics (62-XX) 1 Numerical analysis (65-XX) 1 Fluid mechanics (76-XX) 1 Geophysics (86-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 199 Publications have been cited 1,401 times in 712 Documents Cited by ▼ Year ▼ Integrable solutions of functional equations. Zbl 0318.39005 Matkowski, Janusz 111 1975 Fixed point theorems for mappings with a contractive iterate at a point. Zbl 0349.54032 Matkowski, Janusz 92 1977 Invariant and complementary quasi-arithmetic means. Zbl 0930.26014 Matkowski, Janusz 50 1999 Iterations of mean-type mappings and invariant means. Zbl 0954.26015 Matkowski, Janusz 45 1999 Functional equations and Nemytskii operators. Zbl 0504.39008 Matkowski, Janusz 35 1982 Fixed point theorems for contractive mappings in metric spaces. Zbl 0446.54042 Matkowski, Janusz 31 1980 Lagrangean mean-type mappings for which the arithmetic mean is invariant. Zbl 1084.39019 Matkowski, Janusz 27 2005 A sandwich with convexity. Zbl 0803.39011 Baron, Karol; Matkowski, Janusz; Nikodem, Kazimierz 27 1994 On a characterization of Lipschitzian operators of substitution in the space \(BV<a,b>\). Zbl 0566.47033 Matkowski, J.; Miś, J. 26 1984 Invariance in the class of weighted quasi-arithmetic means. Zbl 1097.26019 Jarczyk, Justyna; Matkowski, Janusz 25 2006 Nonlinear contractions on semimetric spaces. Zbl 1295.54055 Jachymski, J.; Matkowski, J. 25 1995 Generalized weighted quasi-arithmetic means. Zbl 1213.26032 Matkowski, Janusz 22 2010 Lipschitzian composition operators in some function spaces. Zbl 0894.47052 Matkowski, Janusz 19 1997 Iterations of the mean-type mappings. Zbl 1220.26003 Matkowski, Janusz 19 2009 Iterations of the mean-type mappings and uniqueness of invariant means. Zbl 1289.26005 Matkowski, Janusz 17 2013 On subadditive functions. Zbl 0785.39004 Matkowski, Janusz; Świątkowski, Tadeusz 16 1993 An invariance of geometric mean with respect to Lagrangian means. Zbl 1119.26029 Głazowska, Dorota; Matkowski, Janusz 15 2007 On discounted dynamic programming with unbounded returns. Zbl 1219.90182 Matkowski, Janusz; Nowak, Andrzej S. 15 2011 The converse of the Minkowski’s inequality theorem and its generalization. Zbl 0704.46020 Matkowski, Janusz 15 1990 Locally defined operators in the space of differentiable functions. Zbl 0762.26015 Lichawski, Kazimierz; Matkowski, Janusz; Miś, Jerzy 15 1989 Method of characteristic for functional equations in polynomial form. Zbl 0881.39011 Matkowski, Janusz; Zhang, Weinian 15 1997 Arithmetic mean as a linear combination of two quasi-arithmetic means. Zbl 1012.26022 Głazowska, Dorota; Jarczyk, Witold; Matkowski, Janusz 15 2002 On linear dependence of iterates. Zbl 0972.39012 Matkowski, J.; Zhang, W. 14 2000 Invariance of the arithmetic mean with respect to special mean-type mappings. Zbl 1101.26020 Domsta, Joachim; Matkowski, Janusz 14 2006 An integral Jensen inequality for convex multifunctions. Zbl 0829.26011 Matkowski, Janusz; Nikodem, Kazimierz 12 1994 On Mulholland’s inequality. Zbl 1005.39025 Jarczyk, Witold; Matkowski, Janusz 12 2002 An invariance of the geometric mean with respect to Stolarsky mean-type mappings. Zbl 1040.26013 Błasińska-Lesk, J.; Głazowska, D.; Matkowski, J. 11 2003 On invariant generalized Beckenbach-Gini means. Zbl 0996.39019 Matkowski, Janusz 11 2002 Solution of a regularity problem in equality of Cauchy means. Zbl 1077.39022 Matkowski, Janusz 11 2004 Functional equations involving the logarithmic mean. Zbl 0885.39008 Kahlig, P.; Matkowski, J. 11 1996 Persistently optimal policies in stochastic dynamic programming with generalized discounting. Zbl 1291.90290 Jaśkiewicz, A.; Matkowski, J.; Nowak, A. S. 11 2013 On variable discounting in dynamic programming: applications to resource extraction and other economic models. Zbl 1309.90119 Jaśkiewicz, Anna; Matkowski, Janusz; Nowak, Andrzej S. 11 2014 On iterations of means and functional equations. Zbl 1132.39017 Matkowski, Janusz 10 2006 Uniformly bounded composition operators between general Lipschitz function normed spaces. Zbl 1272.47070 Matkowski, Janusz 10 2011 Characteristic analysis for a polynomial-like iterative equation. Zbl 0986.39011 Matkowski, Janusz; Zhang, Weinian 10 1998 Some inequalities and a generalization of Banach’s principle. Zbl 0255.47063 Matkowski, J. 10 1973 On weighted extensions of Cauchy’s means. Zbl 1119.39019 Matkowski, Janusz 10 2006 Form of Lipschitz operators of substitution in Banach spaces of differentiable functions. Zbl 0599.46031 Matkowski, Janusz 10 1984 \(L^ p\)-like paranorms. Zbl 0786.46031 Matkowski, Janusz 10 1992 A modified Gołab-Schinzel equation on a restricted domain (with applications to meteorology and fluid mechanics). Zbl 1076.39019 Kahlig, Peter; Matkowski, Janusz 9 2002 Nonlinear contractions in metrically convex space. Zbl 0824.47047 Matkowski, Janusz 9 1994 Subadditive periodic functions. Zbl 1242.39035 Matkowski, Janusz 9 2011 On the polynomial-like iterative functional equation. Zbl 0976.39014 Matkowski, Janusz; Zhang, Weinian 9 2000 On iteration semigroups of mean-type mappings and invariant means. Zbl 1020.39011 Matkowski, Janusz 9 2002 Quasi-monotonicity, subadditive bijections of \({\mathbb{R}}_ +\), and characterization of \(L^ p\)-norm. Zbl 0725.39007 Matkowski, Janusz; Swiątkowski, Tadeusz 9 1991 Geometrical convexity and generalizations of the Bohr-Mollerup theorem on the gamma function. Zbl 0791.33002 Gronau, Detlef; Matkowski, Janusz 9 1993 Characterization of generalized quasi-arithmetic means. Zbl 1363.26057 Matkowski, Janusz; Páles, Zsolt 9 2015 On the composition of homogeneous quasi-arithmetic means. Zbl 0890.39021 Kahlig, Peter; Matkowski, Janusz 8 1997 Uniformly continuous superposition operators in the Banach space of Hölder functions. Zbl 1173.47043 Matkowski, Janusz 8 2009 Cocycles of continuous iteration semigroups. Zbl 1044.39017 Guzik, Grzegorz; Jarczyk, Witold; Matkowski, Janusz 8 2003 Remark on BV-solutions of a functional equation connected with invariant measures. Zbl 0583.39009 Matkowski, Janusz 8 1985 A functional inequality characterizing convex functions, conjugacy and a generalization of Hölder’s and Minkowski’s inequalities. Zbl 0715.39013 Matkowski, J. 8 1990 Convex functions with respect to an arbitrary mean. Zbl 0883.26007 Matkowski, Janusz; Rätz, Jürg 8 1997 Characterization of globally Lipschitzian composition operators in the Banach space \(BV^ 2_ p [a, b ]\). Zbl 0785.47033 Matkowski, Janusz; Merentes, Nelson 8 1992 On a generalization of Mulholland’s inequality. Zbl 0791.26014 Matkowski, J. 8 1993 Mean value property and associated functional equations. Zbl 0931.39013 Matkowski, Janusz 7 1999 Embeddability of mean-type mappings in a continuous iteration semigroup. Zbl 1219.26007 Jarczyk, Witold; Matkowski, Janusz 7 2010 Representation theorem for locally defined operators in the space of Whitney differentiable functions. Zbl 1173.47044 Matkowski, Janusz; Wróbel, Małgorzata 7 2009 Convex functions with respect to a mean and a characterization of quasi-arithmetic means. Zbl 1067.26008 Matkowski, Janusz 7 2004 On \(a\)-Wright convexity and the converse of Minkowski’s inequality. Zbl 0758.26008 Matkowski, Janusz 7 1992 Invariance identity in the class of generalized quasiarithmetic means. Zbl 1320.26033 Matkowski, Janusz 7 2014 On Nemytskii operator. Zbl 0644.47061 Matkowski, Janusz 6 1988 Remark on globally Lipschitzian composition operators. Zbl 0842.47042 Matkowska, A.; Matkowski, J.; Merentes, N. 6 1995 Uniformly continuous composition operators in the space of bounded \(\varphi \)-variation functions. Zbl 1225.47078 Guerrero, J. A.; Leiva, H.; Matkowski, J.; Merentes, N. 6 2010 Mean-type mappings and invariant curves. Zbl 1230.26015 Matkowski, Janusz 6 2011 On a composite functional equation. Zbl 1046.39018 Matkowski, Janusz; Okrzesik, Jolanta 6 2003 The converse of the Hölder inequality and its generalizations. Zbl 0819.46018 Matkowski, Janusz 6 1994 A converse of the Hölder inequality theorem. Zbl 1177.26043 Matkowski, Janusz 6 2009 Examples and remarks to a fixed point theorem. Zbl 0613.54031 Matkowski, Janusz; Miś, Jerzy 6 1986 The converse theorem for Minkowski’s inequality. Zbl 1053.26014 Matkowski, Janusz 6 2004 Convexity of power functions with respect to symmetric homogeneous means. Zbl 0883.26006 Matkowski, Janusz; Rätz, Jürg 6 1997 On equivalence of some fixed point theorems for selfmappings of metrically convex space. Zbl 0401.54039 Matkowski, J.; Wegrzyk, R. 6 1978 Converse theorem for the Minkowski inequality. Zbl 1154.26020 Matkowski, Janusz 6 2008 Generalised discounting in dynamic programming with unbounded returns. Zbl 1408.90305 Jaśkiewicz, Anna; Matkowski, Janusz; Nowak, Andrzej S. 6 2014 On the commutation of generalized means on probability spaces. Zbl 1377.60010 Leonetti, Paolo; Matkowski, Janusz; Tringali, Salvatore 6 2016 Locally defined operators in the space of Whitney differentiable functions. Zbl 1153.47048 Matkowski, Janusz; Wróbel, Małgorzata 5 2008 Uniformly continuous set-valued composition operators in the spaces of functions of bounded variation in the sense of Wiener. Zbl 1216.47090 Azócar, A.; Guerrero, J. A.; Matkowski, J.; Merentes, N. 5 2010 Convex-like inequality, homogeneity, subadditivity, and a characterization of \(L^ p\)-norm. Zbl 0824.39010 Matkowski, Janusz; Pycia, Marek 5 1995 Geometrically convex solutions of certain difference equations and generalized Bohr-Mollerup type theorems. Zbl 0876.39003 Gronau, Detlef; Matkowski, Janusz 5 1994 On a characterization of \(L^ p\)-norm and a converse of Minkowski’s inequality. Zbl 0872.46018 Matkowski, Janusz 5 1996 On the uniqueness of differentiable solutions of a functional equation. Zbl 0197.12601 Matkowski, J. 5 1970 Sandwich theorem for \(m\)-convex functions. Zbl 1373.26010 Matkowski, Janusz; Wróbel, Małgorzata 5 2017 Uniformly continuous superposition operators in the space of bounded variation functions. Zbl 1235.47052 Matkowski, Janusz 5 2010 Subadditive functions and a relaxation of the homogeneity condition of seminorms. Zbl 0777.26013 Matkowski, Janusz 4 1993 Commutativity of integral quasiarithmetic means on measure spaces. Zbl 1399.39050 Głazowska, D.; Leonetti, P.; Matkowski, J.; Tringali, S. 4 2017 Quotient mean, its invariance with respect to a quasi-arithmetic mean-type mapping, and some applications. Zbl 1232.26053 Matkowski, Janusz 4 2011 On the existence of differentiable solutions of a functional equation. Zbl 0209.45702 Matkowski, J. 4 1971 Beta-type means. Zbl 1384.26064 Himmel, Martin; Matkowski, Janusz 4 2018 Decomposition of homogeneous means and construction of some metric spaces. Zbl 0938.26015 Kahlig, P.; Matkowski, J. 4 1998 Another characterization of the gamma function. Zbl 1027.33001 Gronau, D.; Matkowski, J. 4 2003 The uniqueness of solutions of a system of functional equations in some classes of functions. Zbl 0253.39013 Matkowski, J. 4 1972 A pair of linear functional inequalities and a characterization of \(L^p\)-norm. Zbl 1085.39025 Krassowska, Dorota; Matkowski, Janusz 4 2005 On a characterization of \(L^ p\)-norm. Zbl 0703.46022 Matkowski, Janusz 4 1989 Functional inequality characterizing nonnegative concave functions in \((0,\infty)^ k\). Zbl 0756.39017 Matkowski, Janusz 4 1992 A generalized \(a\)-Wright convexity and related functional equation. Zbl 0859.39016 Matkowski, Janusz; Wróbel, Małgorzata 4 1996 Remarks on Lipschitzian mappings and some fixed point theorems. Zbl 1146.47034 Matkowski, Janusz 4 2007 On a functional equation related to competition. Zbl 1297.39021 Kahlig, Peter; Matkowski, Janusz 4 2014 Uniformly continuous superposition operators in the spaces of differentiable functions and absolutely continuous functions. Zbl 1266.47082 Matkowski, Janusz 4 2009 Affine and convex functions with respect to the logarithmic mean. Zbl 1091.26023 Matkowski, Janusz 4 2003 Invariance of the Bajraktarević means with respect to the Beckenbach-Gini means. Zbl 1349.26079 Matkowski, Janusz 4 2013 On weak generalized stability of random variables via functional equations. Zbl 1515.60062 Jarczyk, Witold; Járai, Antal; Matkowski, Janusz; Misiewicz, Jolanta 3 2023 Iterative roots of two-dimensional mappings. Zbl 1525.39017 Yu, Zhiheng; Li, Lin; Matkowski, Janusz 1 2023 A refinement of the Browder-Göhde-Kirk fixed point theorem and some applications. Zbl 07604579 Matkowski, Janusz 1 2022 Mean-type mappings and invariance principle. Zbl 1466.26024 Matkowski, Janusz; Pasteczka, Paweł 4 2021 Invariant means and iterates of mean-type mappings. Zbl 1440.26028 Matkowski, Janusz; Pasteczka, Paweł 4 2020 Generalization of the harmonic weighted mean via Pythagorean invariance identity and application. Zbl 1462.26036 Kahlig, Peter; Matkowski, Janusz 1 2020 The logarithmic Cauchy quotient mean. Zbl 1477.26051 Himmel, Martin; Matkowski, Janusz 1 2020 Means, generalized harmony proportion and applications. Zbl 1462.26037 Matkowski, Janusz 1 2020 Sandwich results for periodicity and conjugacy. Zbl 1436.39019 Matkowski, Janusz; Wójcik, Paweł 1 2020 Sandwich with periodicity. Zbl 1418.26004 Izumi, Hideaki; Li, Lin; Matkowski, Janusz; Wróbel, Małgorzta 1 2019 Beta-type means. Zbl 1384.26064 Himmel, Martin; Matkowski, Janusz 4 2018 Iterative functional equations and means. Zbl 1384.26020 Liu, Liu; Matkowski, Janusz 2 2018 Characterization of the Euler gamma function with the aid of an arbitrary mean. Zbl 1413.33004 Matkowski, Janusz 1 2018 Directional convexity and characterizations of beta and gamma functions. Zbl 1400.33003 Himmel, Martin; Matkowski, Janusz 1 2018 A new invariance identity and means. Zbl 1400.26069 Devillet, Jimmy; Matkowski, Janusz 1 2018 Sandwich theorem for \(m\)-convex functions. Zbl 1373.26010 Matkowski, Janusz; Wróbel, Małgorzata 5 2017 Commutativity of integral quasiarithmetic means on measure spaces. Zbl 1399.39050 Głazowska, D.; Leonetti, P.; Matkowski, J.; Tringali, S. 4 2017 A generalization of \(m\)-convexity and a sandwich theorem. Zbl 1370.26027 Lara, Teodoro; Matkowski, Janusz; Merentes, Nelson; Quintero, Roy; Wróbel, Małgorzata 3 2017 Beta-type functions and the harmonic mean. Zbl 1384.33003 Himmel, Martin; Matkowski, Janusz 2 2017 Explicit solutions of the invariance equation for means. Zbl 1357.26050 Matkowski, Janusz; Nowicka, Monika; Witkowski, Alfred 2 2017 Homogeneous beta-type functions. Zbl 1424.33003 Himmel, Martin; Matkowski, Janusz 2 2017 On the commutation of generalized means on probability spaces. Zbl 1377.60010 Leonetti, Paolo; Matkowski, Janusz; Tringali, Salvatore 6 2016 Invariant means related to classical weighted means. Zbl 1399.26086 Kahlig, P.; Matkowski, J. 2 2016 Subcommuting and commuting real homographic functions. Zbl 1351.39013 Głazowska, D.; Matkowski, J. 1 2016 Characterization of generalized quasi-arithmetic means. Zbl 1363.26057 Matkowski, Janusz; Páles, Zsolt 9 2015 Some characterizations of the Euler gamma function. Zbl 1332.33002 Matkowski, Janusz 1 2015 Second order iterative functional equations related to a competition equation. Zbl 1317.39027 Kahlig, Peter; Matkowski, Janusz 1 2015 Uniform convexity of paranormed generalizations of \(L^{p}\) spaces. Zbl 1332.46020 Jarczyk, Justyna; Matkowski, Janusz 1 2015 Logarithmic complementary means and an extension of Carlson’s log. Zbl 1320.26031 Kahlig, Peter; Matkowski, Janusz 1 2015 Uniformly bounded composition operators. Zbl 1357.47064 Głazowska, Dorota; Matkowski, Janusz 1 2015 On variable discounting in dynamic programming: applications to resource extraction and other economic models. Zbl 1309.90119 Jaśkiewicz, Anna; Matkowski, Janusz; Nowak, Andrzej S. 11 2014 Invariance identity in the class of generalized quasiarithmetic means. Zbl 1320.26033 Matkowski, Janusz 7 2014 Generalised discounting in dynamic programming with unbounded returns. Zbl 1408.90305 Jaśkiewicz, Anna; Matkowski, Janusz; Nowak, Andrzej S. 6 2014 On a functional equation related to competition. Zbl 1297.39021 Kahlig, Peter; Matkowski, Janusz 4 2014 Convergence of iterates of pre-mean-type mappings. Zbl 1332.26063 Matkowski, Janusz 1 2014 Iterations of the mean-type mappings and uniqueness of invariant means. Zbl 1289.26005 Matkowski, Janusz 17 2013 Persistently optimal policies in stochastic dynamic programming with generalized discounting. Zbl 1291.90290 Jaśkiewicz, A.; Matkowski, J.; Nowak, A. S. 11 2013 Invariance of the Bajraktarević means with respect to the Beckenbach-Gini means. Zbl 1349.26079 Matkowski, Janusz 4 2013 Generalized weighted quasi-arithmetic means and the Kolmogorov-Nagumo theorem. Zbl 1312.26055 Matkowski, Janusz 3 2013 Fixed point theorem in a uniformly convex paranormed space and its application. Zbl 1263.47067 Matkowski, Ianusz 3 2013 A convexity property and a new characterization of Euler’s gamma function. Zbl 1273.26014 Alzer, Horst; Matkowski, Janusz 2 2013 Subhomogeneity and subadditivity of the \(L^p\)-norm like functionals. Zbl 1305.26027 Matkowski, Janusz 1 2013 Halfconvex functions and equality of Daróczy-Páles conjugate means. Zbl 1280.26019 Matkowski, Janusz 1 2013 Uniformly bounded composition operators on a Banach space of bounded Wiener-Young variation functions. Zbl 1281.47037 Głazowska, Dorota; Guerrero, José Atilio; Matkowski, Janusz; Merentes, Nelson 1 2013 Means and their inequalities. Zbl 1286.26002 1 2013 Invariance of Bajraktarevič mean with respect to quasi arithmetic means. Zbl 1274.26086 Matkowski, Janusz 3 2012 Uniformly bounded set-valued Nemytskij operators acting between generalized Hölder function spaces. Zbl 1253.47039 Matkowski, Janusz; Wróbel, Małgorzata 3 2012 The Pexider type generalization of the Minkowski inequality. Zbl 1259.26028 Matkowski, Janusz 3 2012 Invariance of a quasi-arithmetic mean with respect to a system of generalized Bajraktarević means. Zbl 1268.26035 Matkowski, Janusz 3 2012 Quadratic inequalities and a characterization of inner product. Zbl 1261.46015 Matkowski, Janusz 2 2012 Uniformly bounded composition operators in the Banach space of absolutely continuous functions. Zbl 1264.47069 Głazowska, D.; Matkowski, J.; Merentes, N.; Sánchez Hernández, J. L. 2 2012 Fixed points and iterations of mean-type mappings. Zbl 1260.26036 Matkowski, Janusz 1 2012 Mean-value theorem for vector-valued functions. Zbl 1274.26009 Matkowski, Janusz 1 2012 On discounted dynamic programming with unbounded returns. Zbl 1219.90182 Matkowski, Janusz; Nowak, Andrzej S. 15 2011 Uniformly bounded composition operators between general Lipschitz function normed spaces. Zbl 1272.47070 Matkowski, Janusz 10 2011 Subadditive periodic functions. Zbl 1242.39035 Matkowski, Janusz 9 2011 Mean-type mappings and invariant curves. Zbl 1230.26015 Matkowski, Janusz 6 2011 Quotient mean, its invariance with respect to a quasi-arithmetic mean-type mapping, and some applications. Zbl 1232.26053 Matkowski, Janusz 4 2011 A functional equation related to an equality of means problem. Zbl 1220.39020 Matkowski, Janusz 3 2011 Generalized weighted arithmetic means. Zbl 1250.26032 Matkowski, Janusz 2 2011 Uniformly bounded Nemytskij operators generated by set-valued functions between generalized Hölder function spaces. Zbl 1264.47070 Matkowski, Janusz; Wróbel, Małgorzata 2 2011 A mean-value theorem and its applications. Zbl 1206.26032 Matkowski, Janusz 2 2011 Invariance of the Cauchy means with respect to Lagrange mean-type mappings of the same generators. Zbl 1274.26085 Matkowski, J. 2 2011 On means which are quasi-arithmetic and of the Beckenbach-Gini type. Zbl 1251.26018 Matkowski, Janusz 1 2011 Mean-value type equalities with interchanged function and derivative. Zbl 1237.26004 Matkowski, Janusz 1 2011 Power means generated by some mean-value theorems. Zbl 1229.26037 Matkowski, Janusz 1 2011 Generalized weighted quasi-arithmetic means. Zbl 1213.26032 Matkowski, Janusz 22 2010 Embeddability of mean-type mappings in a continuous iteration semigroup. Zbl 1219.26007 Jarczyk, Witold; Matkowski, Janusz 7 2010 Uniformly continuous composition operators in the space of bounded \(\varphi \)-variation functions. Zbl 1225.47078 Guerrero, J. A.; Leiva, H.; Matkowski, J.; Merentes, N. 6 2010 Uniformly continuous set-valued composition operators in the spaces of functions of bounded variation in the sense of Wiener. Zbl 1216.47090 Azócar, A.; Guerrero, J. A.; Matkowski, J.; Merentes, N. 5 2010 Uniformly continuous superposition operators in the space of bounded variation functions. Zbl 1235.47052 Matkowski, Janusz 5 2010 Uniformly continuous composition operator in the space of \(\varphi\)-variation functions in the sense of Riesz. Zbl 1196.26015 Acosta, A.; Aziz, W.; Matkowski, J.; Merentes, N. 4 2010 On weighted extensions of Bajraktarević means. Zbl 1216.26014 Matkowski, Janusz 3 2010 Uniformly continuous composition operators in the space of functions of two variables of bounded \(\varphi\)-variation in the sense of Wiener. Zbl 1229.47088 Guerrero, J. A.; Matkowski, J.; Merentes, N. 2 2010 A composite functional equation and invariant curves. Zbl 1276.39011 Matkowski, Janusz; Okrzesik, Jolanta 2 2010 A generalization of the Gołąb-Schinzel functional equation. Zbl 1227.39017 Matkowski, Janusz 1 2010 On the Bellman equation for asymptotics of utility from terminal wealth. Zbl 1185.91165 Matkowski, Janusz; Stettner, Łukasz 1 2010 Homogeneous means generated by a mean-value theorem. Zbl 1205.26045 Matkowski, Janusz; Pawlikowska, Iwona 1 2010 On the non-reducibility of non-stationary correlation functions to stationary ones under a class of mean-operator transformations. Zbl 1416.62293 Porcu, E.; Matkowski, J.; Mateu, J. 1 2010 Iterations of the mean-type mappings. Zbl 1220.26003 Matkowski, Janusz 19 2009 Uniformly continuous superposition operators in the Banach space of Hölder functions. Zbl 1173.47043 Matkowski, Janusz 8 2009 Representation theorem for locally defined operators in the space of Whitney differentiable functions. Zbl 1173.47044 Matkowski, Janusz; Wróbel, Małgorzata 7 2009 A converse of the Hölder inequality theorem. Zbl 1177.26043 Matkowski, Janusz 6 2009 Uniformly continuous superposition operators in the spaces of differentiable functions and absolutely continuous functions. Zbl 1266.47082 Matkowski, Janusz 4 2009 Converse theorem for the Minkowski inequality. Zbl 1154.26020 Matkowski, Janusz 6 2008 Locally defined operators in the space of Whitney differentiable functions. Zbl 1153.47048 Matkowski, Janusz; Wróbel, Małgorzata 5 2008 A pair of functional inequalities characterizing polynomials and Bernoulli numbers. Zbl 1153.39030 Krassowska, Dorota; Małolepszy, Tomasz; Matkowski, Janusz 3 2008 Iteration groups, commuting functions and simultaneous systems of linear functional equations. Zbl 1168.39005 Matkowski, Janusz 2 2008 Generalized convex functions and a solution of a problem of Zs. Páles. Zbl 1212.26069 Matkowski, Janusz 2 2008 An invariance of geometric mean with respect to Lagrangian means. Zbl 1119.26029 Głazowska, Dorota; Matkowski, Janusz 15 2007 Remarks on Lipschitzian mappings and some fixed point theorems. Zbl 1146.47034 Matkowski, Janusz 4 2007 When \(M\)-convexity of a function implies its \(N\)-convexity for some means of \(M\) and \(N\). Zbl 1141.26306 Matkowski, Janusz 1 2007 A simultaneous system of functional inequalities and mappings which are weakly of a constant sign. Zbl 1142.39020 Krassowska, Dorota; Matkowski, Janusz 1 2007 Invariance in the class of weighted quasi-arithmetic means. Zbl 1097.26019 Jarczyk, Justyna; Matkowski, Janusz 25 2006 Invariance of the arithmetic mean with respect to special mean-type mappings. Zbl 1101.26020 Domsta, Joachim; Matkowski, Janusz 14 2006 On iterations of means and functional equations. Zbl 1132.39017 Matkowski, Janusz 10 2006 On weighted extensions of Cauchy’s means. Zbl 1119.39019 Matkowski, Janusz 10 2006 Lagrangean mean-type mappings for which the arithmetic mean is invariant. Zbl 1084.39019 Matkowski, Janusz 27 2005 A pair of linear functional inequalities and a characterization of \(L^p\)-norm. Zbl 1085.39025 Krassowska, Dorota; Matkowski, Janusz 4 2005 Solution of a regularity problem in equality of Cauchy means. Zbl 1077.39022 Matkowski, Janusz 11 2004 ...and 99 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 701 Authors 84 Matkowski, Janusz 22 Páles, Zsolt 18 Suzuki, Tomonari 16 Chu, Yuming 14 Turinici, Mihai 13 Merentes, Nelson J. 13 Morawiec, Janusz 13 Nikodem, Kazimierz 12 Jarczyk, Justyna 12 Wróbel, Małgorzata 12 Zhang, Weinian 11 Głazowska, Dorota 11 Jachymsky, Jacek R. 11 Karapınar, Erdal 10 Bessenyei, Mihály 10 Nashine, Hemant Kumar 10 Pasteczka, Paweł 9 Jarczyk, Witold 9 Strobin, Filip 8 Berrone, Lucio R. 8 Chudziak, Jacek 7 Altun, Ishak 7 Aydi, Hassen Mohamed 7 Imdad, Mohammad 7 Ostaszewski, Adam J. 7 Shahzad, Naseer 7 Zürcher, Thomas 6 Abbas, Said 6 Appell, Jürgen 6 Balbus, Łukasz 6 Benchohra, Mouffak 6 Burai, Pál 6 Chistyakov, Vyacheslav V. 6 Jaśkiewicz, Anna 6 Kiss, Tibor 6 Włodarczyk, Kazimierz 5 Alzer, Horst 5 Bisht, Ravindra Kishor 5 Brzdęk, Janusz 5 Czerwik, Stefan 5 Daróczy, Zoltán 5 Guerrero, José Atilio 5 Himmel, Martin 5 Kadelburg, Zoran 5 Kahlig, Peter 5 Leonetti, Paolo 5 Li, Lin 5 Miculescu, Radu 5 Popa, Valeriu 5 Radenovic, Stojan 5 Rivas, Sergio T. 5 Wang, Gendi 5 Xu, Bing 5 Zhang, Xiaohui 4 Aziz, Wadie 4 Bingham, Nicholas Hugh 4 Dascăl, Judita 4 Draga, Szymon 4 Fulga, Andreea 4 Gong, Xiaobing 4 Hernández-Verón, Miguel Ángel 4 Kirk, William Arthur 4 Mihail, Alexandru 4 Olbryś, Andrzej 4 Patriciu, Alina-Mihaela 4 Plebaniak, Robert 4 Qiu, Songliang 4 Singh, Shyam Lal 4 Vetro, Calogero 4 Zdun, Marek Cezary 4 Zhang, Pingping 4 Zhang, Qian 3 Abbas, Mujahid 3 Agarwal, Ravi P. 3 Aksoy, Ümit 3 Aranđelović, Ivan D. 3 Baják, Szabolcs 3 Balakrishna Reddy, K. 3 Berzig, Maher 3 Bilal Khan, Muhammad 3 Bracamonte, Mireya R. 3 Castillo, René Erlín 3 Ciepliński, Krzysztof 3 Di Bari, Cristina Maria 3 Erhan, İnci M. 3 Jiang, Yueping 3 Khan, Muhammad Adil 3 Kočan, Zdeněk 3 Lara, Teodoro 3 Liu, Jinghua 3 Łydzińska, Grażyna 3 Maślanka, Łukasz 3 Mesiar, Radko 3 Mishra, Swami Nath 3 Mustafa, Zead 3 Nazam, Muhammad 3 Noor, Muhammad Aslam 3 Nowak, Andrzej S. 3 Oliveira, Elismar R. 3 Pant, Rajendra ...and 601 more Authors all top 5 Cited in 187 Serials 87 Aequationes Mathematicae 66 Journal of Mathematical Analysis and Applications 34 Results in Mathematics 28 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 27 Fixed Point Theory and Applications 19 Journal of Fixed Point Theory and Applications 15 Journal of Inequalities and Applications 12 Proceedings of the American Mathematical Society 12 Acta Mathematica Hungarica 11 Journal of Difference Equations and Applications 11 Abstract and Applied Analysis 10 Fuzzy Sets and Systems 10 Filomat 10 Annales Mathematicae Silesianae 9 Advances in Difference Equations 9 Nonlinear Analysis. Theory, Methods & Applications 8 Applied Mathematics and Computation 7 Topology and its Applications 7 Journal of Applied Analysis 7 Mathematical Inequalities & Applications 7 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 7 Journal of Function Spaces 6 Demonstratio Mathematica 6 Journal of Economic Theory 6 Central European Journal of Mathematics 5 Indagationes Mathematicae. 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Serie II 3 Optimization 3 Turkish Journal of Mathematics 3 Fractals 3 Analysis (München) 3 Mediterranean Journal of Mathematics 3 Journal of Nonlinear Science and Applications 2 Bulletin of the Australian Mathematical Society 2 Nonlinearity 2 Rocky Mountain Journal of Mathematics 2 Chaos, Solitons and Fractals 2 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg 2 Applied Mathematics and Optimization 2 Archiv der Mathematik 2 Czechoslovak Mathematical Journal 2 International Journal of Mathematics and Mathematical Sciences 2 Journal of Computational and Applied Mathematics 2 Journal of Multivariate Analysis 2 Manuscripta Mathematica 2 Matematički Vesnik 2 Mathematische Nachrichten 2 Mathematica Slovaca 2 Numerical Functional Analysis and Optimization 2 Mathematical Social Sciences 2 Operations Research Letters 2 Applied Mathematics Letters 2 Mathematical and Computer Modelling 2 Journal of Integral Equations and Applications 2 Expositiones Mathematicae 2 Mathematical Programming. 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Series B 2 Topological Methods in Nonlinear Analysis 2 Journal of Convex Analysis 2 Discrete and Continuous Dynamical Systems 2 Qualitative Theory of Dynamical Systems 2 Fixed Point Theory 2 Asian-European Journal of Mathematics 2 Dynamic Games and Applications 2 Afrika Matematika 2 Journal of Applied Analysis and Computation 2 Palestine Journal of Mathematics 2 Journal of Mathematics 2 International Journal of Analysis 2 Mathematics 2 Journal of Linear and Topological Algebra 2 Open Mathematics 1 Acta Mathematica Academiae Scientiarum Hungaricae 1 American Mathematical Monthly 1 Indian Journal of Pure & Applied Mathematics 1 Linear and Multilinear Algebra 1 Periodica Mathematica Hungarica 1 Acta Scientiarum Mathematicarum 1 Automatica 1 Colloquium Mathematicum 1 Fasciculi Mathematici 1 Fundamenta Mathematicae 1 Information Sciences 1 International Journal of Game Theory 1 Journal of Mathematical Economics 1 Kybernetika 1 Mathematics of Operations Research 1 Mathematische Zeitschrift ...and 87 more Serials all top 5 Cited in 47 Fields 291 Real functions (26-XX) 238 Difference and functional equations (39-XX) 211 General topology (54-XX) 200 Operator theory (47-XX) 46 Measure and integration (28-XX) 37 Functional analysis (46-XX) 36 Dynamical systems and ergodic theory (37-XX) 25 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 23 Operations research, mathematical programming (90-XX) 22 Integral equations (45-XX) 22 Probability theory and stochastic processes (60-XX) 21 Special functions (33-XX) 19 Numerical analysis (65-XX) 17 Convex and discrete geometry (52-XX) 13 Ordinary differential equations (34-XX) 11 Functions of a complex variable (30-XX) 9 Calculus of variations and optimal control; optimization (49-XX) 8 Statistics (62-XX) 7 Mathematical logic and foundations (03-XX) 7 Linear and multilinear algebra; matrix theory (15-XX) 7 Approximations and expansions (41-XX) 6 Computer science (68-XX) 5 Systems theory; control (93-XX) 3 Number theory (11-XX) 3 Group theory and generalizations (20-XX) 3 Partial differential equations (35-XX) 3 Sequences, series, summability (40-XX) 3 Differential geometry (53-XX) 3 Information and communication theory, circuits (94-XX) 2 Combinatorics (05-XX) 2 Order, lattices, ordered algebraic structures (06-XX) 2 Algebraic geometry (14-XX) 2 Topological groups, Lie groups (22-XX) 2 Geometry (51-XX) 2 Global analysis, analysis on manifolds (58-XX) 2 Geophysics (86-XX) 1 Field theory and polynomials (12-XX) 1 Commutative algebra (13-XX) 1 Potential theory (31-XX) 1 Abstract harmonic analysis (43-XX) 1 Integral transforms, operational calculus (44-XX) 1 Manifolds and cell complexes (57-XX) 1 Mechanics of deformable solids (74-XX) 1 Quantum theory (81-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Biology and other natural sciences (92-XX) 1 Mathematics education (97-XX) Citations by Year