Edit Profile (opens in new tab) Badea, Catalin Co-Author Distance Author ID: badea.catalin Published as: Badea, Catalin; Badea, C.; Badea, Cătălin more...less Documents Indexed: 72 Publications since 1985, including 3 Additional arXiv Preprints 1 Contribution as Editor Reviewing Activity: 385 Reviews Co-Authors: 23 Co-Authors with 53 Joint Publications 624 Co-Co-Authors all top 5 Co-Authors 19 single-authored 13 Grivaux, Sophie 9 Müller, Vladimír 6 Badea, Ion 6 Suciu, Laurian 5 Crouzeix, Michel 5 Mbekhta, Mostafa 4 Cottin, Claudia 4 Gonska, Heinz Herbert 3 Andrica, Dorin 3 Beckermann, Bernhard 2 Seifert, David 1 Buzeţeanu, Şerban N. 1 Cassier, Gilles 1 Delyon, Bernard 1 Devinck, Vincent 1 Devys, Oscar 1 Klaja, Hubert 1 Li, Daniel 1 Lyubich, Yuriĭ Il’ich 1 Matheron, Étienne 1 Paulsen, Vern Ival 1 Petkova, Violeta 1 Rasa, Ioan 1 Timotin, Dan all top 5 Serials 4 Journal of Operator Theory 3 Studia Mathematica 3 Journal of Functional Analysis 2 Journal of Mathematical Analysis and Applications 2 Advances in Mathematics 2 Canadian Mathematical Bulletin 2 Journal of Approximation Theory 2 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. L’Analyse Numérique et la Théorie de l’Approximation 2 Comptes Rendus. Mathématique. Académie des Sciences, Paris 2 Preprint. “Babeș-Bolyai” University. Faculty of Mathematics and Physics. Research Seminars 1 Bulletin of the Australian Mathematical Society 1 Computers & Mathematics with Applications 1 Israel Journal of Mathematics 1 Journal d’Analyse Mathématique 1 Periodica Mathematica Hungarica 1 Acta Arithmetica 1 Acta Scientiarum Mathematicarum 1 Analele Științifice ale Universității Al. I. Cuza din Iași. (Serie Nouă.) Secțiunea Ia. Matematică-Informatică 1 Archiv der Mathematik 1 Archivum Mathematicum 1 Bulletin of the London Mathematical Society 1 Commentarii Mathematici Helvetici 1 Glasgow Mathematical Journal 1 Indiana University Mathematics Journal 1 Integral Equations and Operator Theory 1 Mathematische Nachrichten 1 Mathematische Zeitschrift 1 Proceedings of the American Mathematical Society 1 Real Analysis Exchange 1 Results in Mathematics 1 Transactions of the American Mathematical Society 1 Topology and its Applications 1 Ergodic Theory and Dynamical Systems 1 Approximation Theory and its Applications 1 Revista Matemática Iberoamericana 1 IMRN. International Mathematics Research Notices 1 Studia Universitatis Babeș-Bolyai. Mathematica 1 Comptes Rendus de l’Académie des Sciences. Série I 1 Indagationes Mathematicae. New Series 1 Revue d’Analyse Numérique et de Théorie de l’Approximation 1 St. Petersburg Mathematical Journal 1 Nonlinear Functional Analysis and Applications 1 Communications on Pure and Applied Analysis 1 Mediterranean Journal of Mathematics 1 Preprint. “Babeș-Bolyai” University. Faculty of Mathematics. Research Seminars 1 Journal of Applied Functional Analysis 1 Theta Series in Advanced Mathematics 1 Complex Analysis and Operator Theory 1 Operators and Matrices 1 Pure and Applied Functional Analysis all top 5 Fields 39 Operator theory (47-XX) 16 Functional analysis (46-XX) 14 Approximations and expansions (41-XX) 7 Number theory (11-XX) 4 Dynamical systems and ergodic theory (37-XX) 4 Harmonic analysis on Euclidean spaces (42-XX) 3 Topological groups, Lie groups (22-XX) 3 Real functions (26-XX) 3 Difference and functional equations (39-XX) 3 Abstract harmonic analysis (43-XX) 2 Measure and integration (28-XX) 2 Functions of a complex variable (30-XX) 2 Numerical analysis (65-XX) 1 General and overarching topics; collections (00-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Several complex variables and analytic spaces (32-XX) 1 General topology (54-XX) 1 Algebraic topology (55-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 54 Publications have been cited 378 times in 260 Documents Cited by ▼ Year ▼ Notes on degree of approximation of B-continuous and B-differentiable functions. Zbl 0671.41013 Badea, C.; Badea, I.; Cottin, C.; Gonska, Heinz H. 40 1988 A test function theorem and approximation by pseudopolynomials. Zbl 0595.41017 Badea, C.; Badea, I.; Gonska, Heinz H. 39 1986 Korovkin-type theorems for generalized Boolean sum operators. Zbl 0765.41020 Badea, C.; Cottin, C. 38 1991 Unimodular eigenvalues, uniformly distributed sequences and linear dynamics. Zbl 1123.47006 Badea, Catalin; Grivaux, Sophie 26 2007 The rate of convergence in the method of alternating projections. Zbl 1294.47026 Badea, C.; Grivaux, S.; Müller, V. 26 2012 Grüss’ inequality for positive linear functionals. Zbl 0619.26011 Andrica, D.; Badea, C. 21 1988 The irrationality of certain infinite series. Zbl 0629.10027 Badea, C. 16 1987 The Cauchy dual and 2-isometric liftings of concave operators. Zbl 1435.47017 Badea, Catalin; Suciu, Laurian 16 2019 \(K\)-functionals and moduli of smoothness of functions defined on compact metric spaces. Zbl 0836.46065 Badea, C. 15 1995 Bernstein polynomials and operator theory. Zbl 1198.47028 Badea, Catalin 13 2009 A theorem on irrationality of infinite series and applications. Zbl 0770.11036 Badea, C. 10 1993 A generalization of the Friedrichs angle and the method of alternating projections. Zbl 1191.46021 Badea, Catalin; Grivaux, Sophie; Müller, Vladimir 10 2010 Intersections of several disks of the Riemann sphere as \(K\)-spectral sets. Zbl 1169.47008 Badea, Catalin; Beckermann, Bernhard; Crouzeix, Michel 10 2009 Geometric, spectral and asymptotic properties of averaged products of projections in Banach spaces. Zbl 1215.47004 Badea, Catalin; Lyubich, Yuri I. 10 2010 The stable rank of topological algebras and a problem of R. G. Swan. Zbl 0921.46053 Badea, C. 9 1998 Convex domains and K-spectral sets. Zbl 1084.47004 Badea, Catalin; Crouzeix, Michel; Delyon, Bernard 9 2006 Operators similar to partial isometries. Zbl 1122.47001 Badea, C.; Mbekhta, M. 8 2005 Multiples of hypercyclic operators. Zbl 1168.47007 Badea, Catalin; Grivaux, Sophie; Müller, Vladimir 8 2009 Ritt operators and convergence in the method of alternating projections. Zbl 1336.41013 Badea, Catalin; Seifert, David 8 2016 Constrained von Neumann inequalities. Zbl 1049.47004 Badea, C.; Cassier, G. 7 2002 High order isometric liftings and dilations. Zbl 1489.47001 Badea, Cătălin; Müller, Vladimir; Suciu, Laurian 7 2021 Size of the peripheral point spectrum under power or resolvent growth conditions. Zbl 1126.47001 Badea, Catalin; Grivaux, Sophie 6 2007 Epsilon-hypercyclic operators. Zbl 1206.47009 Badea, Catalin; Grivaux, Sophie; Müller, Vladimir 6 2010 Hilbert space operators with two-isometric dilations. Zbl 1524.47026 Badea, Catalin; Suciu, Laurian 6 2021 Schur multipliers and operator-valued Foguel-Hankel operators. Zbl 1031.47019 Badea, C.; Paulsen, V. I. 5 2001 Quantified asymptotic behaviour of Banach space operators and applications to iterative projection methods. Zbl 1481.47022 Badea, Catalin; Seifert, David 5 2017 On the Hyers-Ulam stability of mappings: The direct method. Zbl 0845.39011 Badea, Catalin 4 1994 Perturbations of operators similar to contractions and the commutator equation. Zbl 1015.47011 Badea, C. 4 2002 On weak orbits of operators. Zbl 1204.47001 Badea, C.; Müller, V. 4 2009 The general linear equation is stable. Zbl 1076.39023 Badea, Catalin 4 2005 Operators near completely polynomially dominated ones and similarity problems. Zbl 1019.47010 Badea, C. 4 2003 On the order of simultaneous approximation of bivariate functions by Bernstein operators. Zbl 0638.41018 Badea, Ion; Badea, Cătălin 3 1987 A Korovkin-type theorem for generalizations of Boolean sum operators and approximation by trigonometric pseudopolynomials. Zbl 0671.42003 Badea, C.; Badea, I.; Cottin, C. 3 1988 Jensen’s and Jessen’s inequality, convexity-preserving and approximating polynomial operators and Korovkin’s theorem. Zbl 0681.26008 Andrica, Dorin; Badea, Cătălin 3 1986 Growth conditions and inverse producing extensions. Zbl 1122.47007 Badea, Cătălin; Müller, Vladimír 3 2005 Subscalar operators and growth of resolvent. Zbl 1122.47033 Badea, Cătălin; Müller, Vladimír 3 2006 Kazhdan sets in groups and equidistribution properties. Zbl 1369.22004 Badea, Catalin; Grivaux, Sophie 3 2017 Kazhdan constants, continuous probability measures with large Fourier coefficients and rigidity sequences. Zbl 1451.43001 Badea, Catalin; Grivaux, Sophie 3 2020 Generalized inverses and the maximal radius of regularity of a Fredholm operator. Zbl 0897.47001 Badea, Catalin; Mbekhta, Mostafa 2 1997 Compressions of resolvents and maximal radius of regularity. Zbl 0919.47003 Badea, C.; Mbekhta, M. 2 1999 The Gleason-Kahane-Zelazko theorem and Ransford’s generalized spectra. Zbl 0739.46035 Badea, Catalin 2 1991 Classes of contractions and Harnack domination. Zbl 1459.47007 Badea, Catalin; Suciu, Laurian; Timotin, Dan 2 2017 Faber-hypercyclic operators. Zbl 1156.47008 Badea, Catalin; Grivaux, Sophie 2 2008 Rigidity sequences, Kazhdan sets and group topologies on the integers. Zbl 1476.11062 Badea, Catalin; Grivaux, Sophie; Matheron, Étienne 2 2021 Sets of integers determined by operator-theoretical properties: Jamison and Kazhdan sets in the group \(\mathbb{Z}\). Zbl 1412.22013 Badea, Catalin; Grivaux, Sophie 2 2017 Spectral sets and operator radii. Zbl 07000659 Badea, Catalin; Crouzeix, Michel; Klaja, Hubert 2 2018 Subalgebras with the same \(K\)-theory and the same stable rank. Zbl 0832.46062 Badea, C. 1 1994 Bögel functions, tensor products and blending approximation. Zbl 0830.41027 Badea, C.; Cottin, C.; Gonska, Heinz H. 1 1995 On existence of one-sided and generalized resolvents of bounded linear operators. Zbl 0946.47002 Badea, C.; Mbekhta, M. 1 1998 The Gleason-Kahane-Zelazko theorem. Zbl 0824.46054 Badea, C. 1 1994 Inverse of Čebyšev’s inequality. Zbl 0757.26019 Andrica, D.; Badea, C. 1 1985 The Gleason-Kahane-Zelazko property and Korovkin systems in symmetric involutive Banach algebras. Zbl 0781.46040 Badea, C.; Rasa, I. 1 1993 \(K\)-spectral sets: an asymptotic viewpoint. Zbl 1357.47013 Badea, Catalin 1 2014 Similarity problems, Følner sets and isometric representations of amenable semigroups. Zbl 1493.47023 Badea, Catalin; Suciu, Laurian 1 2019 High order isometric liftings and dilations. Zbl 1489.47001 Badea, Cătălin; Müller, Vladimir; Suciu, Laurian 7 2021 Hilbert space operators with two-isometric dilations. Zbl 1524.47026 Badea, Catalin; Suciu, Laurian 6 2021 Rigidity sequences, Kazhdan sets and group topologies on the integers. Zbl 1476.11062 Badea, Catalin; Grivaux, Sophie; Matheron, Étienne 2 2021 Kazhdan constants, continuous probability measures with large Fourier coefficients and rigidity sequences. Zbl 1451.43001 Badea, Catalin; Grivaux, Sophie 3 2020 The Cauchy dual and 2-isometric liftings of concave operators. Zbl 1435.47017 Badea, Catalin; Suciu, Laurian 16 2019 Similarity problems, Følner sets and isometric representations of amenable semigroups. Zbl 1493.47023 Badea, Catalin; Suciu, Laurian 1 2019 Spectral sets and operator radii. Zbl 07000659 Badea, Catalin; Crouzeix, Michel; Klaja, Hubert 2 2018 Quantified asymptotic behaviour of Banach space operators and applications to iterative projection methods. Zbl 1481.47022 Badea, Catalin; Seifert, David 5 2017 Kazhdan sets in groups and equidistribution properties. Zbl 1369.22004 Badea, Catalin; Grivaux, Sophie 3 2017 Classes of contractions and Harnack domination. Zbl 1459.47007 Badea, Catalin; Suciu, Laurian; Timotin, Dan 2 2017 Sets of integers determined by operator-theoretical properties: Jamison and Kazhdan sets in the group \(\mathbb{Z}\). Zbl 1412.22013 Badea, Catalin; Grivaux, Sophie 2 2017 Ritt operators and convergence in the method of alternating projections. Zbl 1336.41013 Badea, Catalin; Seifert, David 8 2016 \(K\)-spectral sets: an asymptotic viewpoint. Zbl 1357.47013 Badea, Catalin 1 2014 The rate of convergence in the method of alternating projections. Zbl 1294.47026 Badea, C.; Grivaux, S.; Müller, V. 26 2012 A generalization of the Friedrichs angle and the method of alternating projections. Zbl 1191.46021 Badea, Catalin; Grivaux, Sophie; Müller, Vladimir 10 2010 Geometric, spectral and asymptotic properties of averaged products of projections in Banach spaces. Zbl 1215.47004 Badea, Catalin; Lyubich, Yuri I. 10 2010 Epsilon-hypercyclic operators. Zbl 1206.47009 Badea, Catalin; Grivaux, Sophie; Müller, Vladimir 6 2010 Bernstein polynomials and operator theory. Zbl 1198.47028 Badea, Catalin 13 2009 Intersections of several disks of the Riemann sphere as \(K\)-spectral sets. Zbl 1169.47008 Badea, Catalin; Beckermann, Bernhard; Crouzeix, Michel 10 2009 Multiples of hypercyclic operators. Zbl 1168.47007 Badea, Catalin; Grivaux, Sophie; Müller, Vladimir 8 2009 On weak orbits of operators. Zbl 1204.47001 Badea, C.; Müller, V. 4 2009 Faber-hypercyclic operators. Zbl 1156.47008 Badea, Catalin; Grivaux, Sophie 2 2008 Unimodular eigenvalues, uniformly distributed sequences and linear dynamics. Zbl 1123.47006 Badea, Catalin; Grivaux, Sophie 26 2007 Size of the peripheral point spectrum under power or resolvent growth conditions. Zbl 1126.47001 Badea, Catalin; Grivaux, Sophie 6 2007 Convex domains and K-spectral sets. Zbl 1084.47004 Badea, Catalin; Crouzeix, Michel; Delyon, Bernard 9 2006 Subscalar operators and growth of resolvent. Zbl 1122.47033 Badea, Cătălin; Müller, Vladimír 3 2006 Operators similar to partial isometries. Zbl 1122.47001 Badea, C.; Mbekhta, M. 8 2005 The general linear equation is stable. Zbl 1076.39023 Badea, Catalin 4 2005 Growth conditions and inverse producing extensions. Zbl 1122.47007 Badea, Cătălin; Müller, Vladimír 3 2005 Operators near completely polynomially dominated ones and similarity problems. Zbl 1019.47010 Badea, C. 4 2003 Constrained von Neumann inequalities. Zbl 1049.47004 Badea, C.; Cassier, G. 7 2002 Perturbations of operators similar to contractions and the commutator equation. Zbl 1015.47011 Badea, C. 4 2002 Schur multipliers and operator-valued Foguel-Hankel operators. Zbl 1031.47019 Badea, C.; Paulsen, V. I. 5 2001 Compressions of resolvents and maximal radius of regularity. Zbl 0919.47003 Badea, C.; Mbekhta, M. 2 1999 The stable rank of topological algebras and a problem of R. G. Swan. Zbl 0921.46053 Badea, C. 9 1998 On existence of one-sided and generalized resolvents of bounded linear operators. Zbl 0946.47002 Badea, C.; Mbekhta, M. 1 1998 Generalized inverses and the maximal radius of regularity of a Fredholm operator. Zbl 0897.47001 Badea, Catalin; Mbekhta, Mostafa 2 1997 \(K\)-functionals and moduli of smoothness of functions defined on compact metric spaces. Zbl 0836.46065 Badea, C. 15 1995 Bögel functions, tensor products and blending approximation. Zbl 0830.41027 Badea, C.; Cottin, C.; Gonska, Heinz H. 1 1995 On the Hyers-Ulam stability of mappings: The direct method. Zbl 0845.39011 Badea, Catalin 4 1994 Subalgebras with the same \(K\)-theory and the same stable rank. Zbl 0832.46062 Badea, C. 1 1994 The Gleason-Kahane-Zelazko theorem. Zbl 0824.46054 Badea, C. 1 1994 A theorem on irrationality of infinite series and applications. Zbl 0770.11036 Badea, C. 10 1993 The Gleason-Kahane-Zelazko property and Korovkin systems in symmetric involutive Banach algebras. Zbl 0781.46040 Badea, C.; Rasa, I. 1 1993 Korovkin-type theorems for generalized Boolean sum operators. Zbl 0765.41020 Badea, C.; Cottin, C. 38 1991 The Gleason-Kahane-Zelazko theorem and Ransford’s generalized spectra. Zbl 0739.46035 Badea, Catalin 2 1991 Notes on degree of approximation of B-continuous and B-differentiable functions. Zbl 0671.41013 Badea, C.; Badea, I.; Cottin, C.; Gonska, Heinz H. 40 1988 Grüss’ inequality for positive linear functionals. Zbl 0619.26011 Andrica, D.; Badea, C. 21 1988 A Korovkin-type theorem for generalizations of Boolean sum operators and approximation by trigonometric pseudopolynomials. Zbl 0671.42003 Badea, C.; Badea, I.; Cottin, C. 3 1988 The irrationality of certain infinite series. Zbl 0629.10027 Badea, C. 16 1987 On the order of simultaneous approximation of bivariate functions by Bernstein operators. Zbl 0638.41018 Badea, Ion; Badea, Cătălin 3 1987 A test function theorem and approximation by pseudopolynomials. Zbl 0595.41017 Badea, C.; Badea, I.; Gonska, Heinz H. 39 1986 Jensen’s and Jessen’s inequality, convexity-preserving and approximating polynomial operators and Korovkin’s theorem. Zbl 0681.26008 Andrica, Dorin; Badea, Cătălin 3 1986 Inverse of Čebyšev’s inequality. Zbl 0757.26019 Andrica, D.; Badea, C. 1 1985 all cited Publications top 5 cited Publications all top 5 Cited by 290 Authors 25 Agrawal, Purshottam Narain 16 Badea, Catalin 13 Acu, Ana Maria 13 Suciu, Laurian 11 Grivaux, Sophie 10 İspir, Nurhayat 10 Peris, Alfredo 9 Reich, Simeon 8 Baxhaku, Behar 8 Mbekhta, Mostafa 8 Müller, Vladimír 6 Kajla, Arun 6 Rasa, Ioan 5 Dragomir, Sever Silvestru 5 Milovanović, Emina I. 5 Milovanović, Igor Ž. 5 Seifert, David 5 Yin, Zongbin 5 Zalas, Rafał 4 Aslan, Reşat 4 Bès, Juan P. 4 Chauhan, Ruchi 4 Demirci, Kamil 4 Kopecká, Eva 4 Menet, Quentin 4 Muraru, Carmen Violeta 4 Murillo-Arcila, Marina 4 Sidharth, Manjari 3 Anastassiou, George Angelos 3 Bartoll, Salud 3 Bayart, Frédéric 3 Bermúdez, Teresa 3 Borodin, Petr A. 3 Chavan, Sameer Laxman 3 Chen, Yuming 3 Dirik, Fadime 3 Doğru, Ogün 3 Ezzahraoui, Hamid 3 Garg, Tarul 3 Jabłoński, Zenon Jan 3 Kumar, Dharmendra 3 Majdak, Witold 3 Martínez-Giménez, Félix 3 Pustylnik, Evgeniy 3 Souroujon, Diko M. 3 Zapryanova, Teodora Dimova 3 Zerouali, El Hassan 2 Acar, Tuncer 2 Aiemsomboon, Laddawan 2 Andrica, Dorin 2 Bargetz, Christian 2 Bickel, Kelly 2 Conejero, José Alberto 2 Crouzeix, Michel 2 Devys, Oscar 2 Dritschel, Michael A. 2 Feshchenko, Ivan S. 2 Garayev, Mübariz Tapdıgoğlu 2 García-Bayona, Ismael 2 Gavrea, Ioan 2 Gorkin, Pamela B. 2 Greenbaum, Anne 2 He, Shengnan 2 Heilmann, Margareta 2 Huang, Yu 2 Ivan, Mircea Dumitru 2 Izgi, Aydın 2 Kumar, Abhishek 2 Kumar, Angamuthu Sathish 2 Luo, Lvlin 2 Martinón, Antonio 2 Matejić, Marjan M. 2 Matheron, Étienne 2 Mohiuddine, Syed Abdul 2 Nagler, Johannes 2 Ng, Abraham C. S. 2 Oppenheim, Izhar 2 Pietrzycki, Paweł 2 Puig, Yunied 2 Ransford, Thomas J. 2 Schwenninger, Felix L. 2 Shukla, Rahul 2 Singh, Karunesh Kumar 2 Sintunavarat, Wutiphol 2 Stochel, Jan 2 Yakubovich, Dmitry V. 2 Yıldız Özkan, Esma 2 Zaslavski, Alexander Yakovlevich 1 Ackelsberg, Ethan M. 1 Agniel, Vidal 1 Ahasan, Mohd 1 Akdağ, Sevda 1 Akpınar, Nesibe Nur 1 Alhevaz, Abdollah 1 Aliaga, Edmond 1 Aloisio, Moacir 1 Alotaibi, Abdullah M. 1 Anand, Akash 1 Andersson, Fredrik K. 1 Ansari, Khursheed Jamal ...and 190 more Authors all top 5 Cited in 108 Serials 20 Journal of Mathematical Analysis and Applications 16 Results in Mathematics 12 Journal of Functional Analysis 10 Linear Algebra and its Applications 9 Journal of Approximation Theory 8 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 6 Studia Mathematica 6 Transactions of the American Mathematical Society 5 Israel Journal of Mathematics 5 Applied Mathematics and Computation 5 Journal of Inequalities and Applications 5 Mathematical Foundations of Computing 4 Archiv der Mathematik 4 Integral Equations and Operator Theory 4 Numerical Functional Analysis and Optimization 3 Quaestiones Mathematicae 3 SIAM Journal on Matrix Analysis and Applications 3 SIAM Journal on Optimization 3 Filomat 3 Comptes Rendus. Mathématique. Académie des Sciences, Paris 3 Complex Analysis and Operator Theory 3 Journal of Mathematical Inequalities 2 Computers & Mathematics with Applications 2 Journal d’Analyse Mathématique 2 Linear and Multilinear Algebra 2 Mathematical Methods in the Applied Sciences 2 Periodica Mathematica Hungarica 2 Czechoslovak Mathematical Journal 2 Mathematische Annalen 2 Monatshefte für Mathematik 2 Proceedings of the American Mathematical Society 2 Topology and its Applications 2 Ergodic Theory and Dynamical Systems 2 Numerical Algorithms 2 Indagationes Mathematicae. New Series 2 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 2 Turkish Journal of Mathematics 2 Abstract and Applied Analysis 2 Positivity 2 Computational Methods and Function Theory 2 Mediterranean Journal of Mathematics 2 Advances in Difference Equations 2 Banach Journal of Mathematical Analysis 2 Asian-European Journal of Mathematics 2 Annals of Functional Analysis 2 Journal of Function Spaces 2 Constructive Mathematical Analysis 1 Discrete Applied Mathematics 1 Journal of Statistical Physics 1 Ukrainian Mathematical Journal 1 Acta Mathematica Vietnamica 1 Acta Scientiarum Mathematicarum 1 Annali di Matematica Pura ed Applicata. Serie Quarta 1 Automatica 1 Canadian Mathematical Bulletin 1 Commentarii Mathematici Helvetici 1 Demonstratio Mathematica 1 Fasciculi Mathematici 1 Journal of Differential Equations 1 Journal of the London Mathematical Society. Second Series 1 Kyungpook Mathematical Journal 1 Matematički Vesnik 1 Mathematica Slovaca 1 Mathematische Zeitschrift 1 Memoirs of the American Mathematical Society 1 Numerische Mathematik 1 Semigroup Forum 1 Acta Mathematica Hungarica 1 Bulletin of the Iranian Mathematical Society 1 Journal of Complexity 1 Constructive Approximation 1 Extracta Mathematicae 1 Revista Matemática Iberoamericana 1 COMPEL 1 Applied Mathematics Letters 1 Mathematical and Computer Modelling 1 Acta Mathematica Universitatis Comenianae. New Series 1 Aequationes Mathematicae 1 Expositiones Mathematicae 1 The Journal of Analysis 1 St. Petersburg Mathematical Journal 1 Computational and Applied Mathematics 1 Discrete and Continuous Dynamical Systems 1 Documenta Mathematica 1 Journal of Mathematical Chemistry 1 Mathematical Communications 1 Honam Mathematical Journal 1 Communications de la Faculté des Sciences de l’Université d’Ankara. Séries A1. Mathematics and Statistics 1 Lobachevskii Journal of Mathematics 1 Journal of Evolution Equations 1 Central European Journal of Mathematics 1 Vladikavkazskiĭ Matematicheskiĭ Zhurnal 1 Hacettepe Journal of Mathematics and Statistics 1 Proceedings of the Steklov Institute of Mathematics 1 Journal of Fixed Point Theory and Applications 1 Operators and Matrices 1 European Journal of Pure and Applied Mathematics 1 Tbilisi Mathematical Journal 1 Journal of Nonlinear Science and Applications 1 Analysis and Mathematical Physics ...and 8 more Serials all top 5 Cited in 36 Fields 137 Operator theory (47-XX) 89 Approximations and expansions (41-XX) 30 Functional analysis (46-XX) 21 Real functions (26-XX) 21 Dynamical systems and ergodic theory (37-XX) 14 Numerical analysis (65-XX) 11 Linear and multilinear algebra; matrix theory (15-XX) 11 Functions of a complex variable (30-XX) 10 Combinatorics (05-XX) 8 Difference and functional equations (39-XX) 6 Measure and integration (28-XX) 6 Sequences, series, summability (40-XX) 6 General topology (54-XX) 5 Topological groups, Lie groups (22-XX) 5 Biology and other natural sciences (92-XX) 4 Information and communication theory, circuits (94-XX) 3 Harmonic analysis on Euclidean spaces (42-XX) 3 Integral transforms, operational calculus (44-XX) 3 Optics, electromagnetic theory (78-XX) 2 Number theory (11-XX) 2 Algebraic geometry (14-XX) 2 Group theory and generalizations (20-XX) 2 Special functions (33-XX) 2 Partial differential equations (35-XX) 2 Abstract harmonic analysis (43-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Quantum theory (81-XX) 2 Operations research, mathematical programming (90-XX) 2 Systems theory; control (93-XX) 1 General and overarching topics; collections (00-XX) 1 Field theory and polynomials (12-XX) 1 Nonassociative rings and algebras (17-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Computer science (68-XX) 1 Fluid mechanics (76-XX) 1 Statistical mechanics, structure of matter (82-XX) Citations by Year