Edit Profile (opens in new tab) Levis, Fabián Eduardo Co-Author Distance Author ID: levis.fabian-eduardo Published as: Levis, F. E.; Levis, Fabián E.; Levis, Fabián Eduardo; Levis, F.; Levis, Fabián; Levis, Fabian Eduardo; Levis, Fabian E. more...less Documents Indexed: 51 Publications since 1999, including 4 Additional arXiv Preprints Co-Authors: 21 Co-Authors with 47 Joint Publications 73 Co-Co-Authors all top 5 Co-Authors 4 single-authored 19 Cuenya, Héctor Hugo 17 Ferreyra, David Eduardo 8 Thome, Néstor 6 Priori, A. N. 6 Ridolfi, Claudia V. 6 Rodriguez, Claudia N. 3 Kovac, Federico Dario 3 Roldán, M. V. 2 Favier, Sergio J. 2 Gareis, María Inés 2 Lattanzi, Marina Beatriz 2 Lorenzo, M. D. 2 Malik, Saroj B. 2 Marano, Miguel 2 Moas, Ruth Paola 1 Barrozo, María Fernanda 1 Benavente, Ana 1 Lattanzim, M. 1 Maharana, Gayatri 1 Orquera, V. 1 Zabala, L. all top 5 Serials 8 Numerical Functional Analysis and Optimization 5 Journal of Approximation Theory 4 Mathematische Nachrichten 2 Collectanea Mathematica 2 Revista de la Unión Matemática Argentina 2 ELA. The Electronic Journal of Linear Algebra 2 Journal of Inequalities and Applications 2 Jaen Journal on Approximation 2 Annals of Functional Analysis 1 Journal of Mathematical Analysis and Applications 1 Linear and Multilinear Algebra 1 Applied Mathematics and Computation 1 Journal of Computational and Applied Mathematics 1 Quaestiones Mathematicae 1 Real Analysis Exchange 1 Results in Mathematics 1 Optimization 1 Mathematical and Computer Modelling 1 Acta Mathematica Universitatis Comenianae. New Series 1 Aequationes Mathematicae 1 East Journal on Approximations 1 Mathematical Inequalities & Applications 1 Analysis in Theory and Applications 1 Operators and Matrices 1 Commentationes Mathematicae 1 Advances in Pure and Applied Mathematics 1 ISRN Mathematical Analysis all top 5 Fields 36 Approximations and expansions (41-XX) 14 Functional analysis (46-XX) 11 Linear and multilinear algebra; matrix theory (15-XX) 6 Real functions (26-XX) 3 Order, lattices, ordered algebraic structures (06-XX) 2 Functions of a complex variable (30-XX) 2 Several complex variables and analytic spaces (32-XX) 1 Measure and integration (28-XX) 1 Dynamical systems and ergodic theory (37-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Abstract harmonic analysis (43-XX) 1 Operator theory (47-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Numerical analysis (65-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 30 Publications have been cited 231 times in 140 Documents Cited by ▼ Year ▼ Revisiting the core EP inverse and its extension to rectangular matrices. Zbl 1390.15010 Ferreyra, D. E.; Levis, F. E.; Thome, N. 70 2018 Maximal classes of matrices determining generalized inverses. Zbl 1427.15004 Ferreyra, D. E.; Levis, F. E.; Thome, N. 46 2018 Characterizations of \(k\)-commutative equalities for some outer generalized inverses. Zbl 1431.15006 Ferreyra, D. E.; Levis, F. E.; Thome, N. 26 2020 Gateaux differentiability in Orlics-Lorentz spaces and applications. Zbl 1139.58005 Levis, Fabian E.; Cuenya, Hector H. 13 2007 Weak inequalities for maximal functions in Orlicz-Lorentz spaces and applications. Zbl 1186.41019 Levis, Fabián E. 10 2010 The weak core inverse. Zbl 1465.15008 Ferreyra, D. E.; Levis, F. E.; Priori, A. N.; Thome, N. 9 2021 Best constant approximants in Orlicz-Lorentz spaces. Zbl 1185.41030 Levis, F. E.; Cuenya, H. H.; Priori, A. N. 7 2008 Pólya-type polynomial inequalities in \(L^p\) spaces and best local approximation. Zbl 1092.41006 Cuenya, H. H.; Levis, F. E. 6 2005 Parametrized solutions \(X\) of the system \(AXA = AEA\) and \(A^k EAX = XAEA^k\) for a matrix \(A\) having index \(k\). Zbl 1441.15012 Ferreyra, David E.; Lattanzi, Marina; Levis, Fabián E.; Thome, Néstor 6 2019 Best local approximation in Orlicz spaces. Zbl 1238.41006 Cuenya, H.; Levis, F.; Marano, M.; Ridolfi, C. 4 2011 Best constant approximants in Lorentz spaces. Zbl 1080.41024 Levis, F. E.; Cuenya, H. H. 4 2004 Solving an open problem about the G-Drazin partial order. Zbl 1435.15002 Ferreyra, David; Lattanzi, Marina; Levis, Fabián; Thome, Nestor 4 2020 Left and right generalized Drazin invertible operators on Banach spaces and applications. Zbl 1512.47005 Ferreyra, D. E.; Lattanzim, M.; Levis, F. E.; Thome, N. 3 2019 A property of the planar measure of the lemniscates. Zbl 1123.32006 Cuenya, H. H.; Levis, F. E. 2 2007 Best simultaneous approximation on small regions. Zbl 1179.41017 Cuenya, H. H.; Levis, F. E.; Lorenzo, M. D. 2 2009 Gâteaux differentiability for functionals of type Orlicz-Lorentz. Zbl 1097.46507 Levis, F. E.; Cuenya, H. H. 2 2004 Weighted best local \(\|\cdot\|\)-approximation in Orlicz spaces. Zbl 1252.41008 Cuenya, H.; Favier, S.; Levis, F.; Ridolfi, C. 2 2010 Interpolation and best simultaneous approximation. Zbl 1207.41009 Cuenya, Héctor H.; Levis, Fabián E. 2 2010 Extended best polynomial approximation operator in Orlicz-Lorentz spaces. Zbl 07747251 Ferreyra, David Eduardo; Gareis, María Inés; Levis, Fabián Eduardo 2 2022 Multipoint Padé approximants as limits of rational functions of best approximation in the complex domain. Zbl 1379.41015 Levis, Fabián E.; Rodriguez, Claudia N. 1 2015 Existence and characterization of best \(\varphi\)-approximations by linear subspaces. Zbl 1380.46023 Benavente, Ana; Favier, Sergio; Levis, Fabián 1 2017 Existence of optimal subspaces in reflexive Banach spaces. Zbl 1381.46061 Cuenya, H. H.; Levis, F. E. 1 2015 The best multipoint Padé approximant. Zbl 1410.41008 Levis, Fabian Eduardo; Rodriguez, Claudia N. 1 2018 On convergence of subspaces generated by dilations of polynomials. An application to best local approximation. Zbl 1444.41003 Levis, Fabián E.; Ridolfi, Claudia V. 1 2020 Polynomial inequalities on measurable sets in Lorentz spaces and their applications. Zbl 1457.46041 Levis, F. E. 1 2020 A new approach to derivatives in \(L^2\)-spaces. Zbl 1447.41012 Ferreyra, D. E.; Levis, F. E.; Roldán, M. V. 1 2020 Pólya-type polynomial inequalities in Orlicz spaces and best local approximation. Zbl 1279.41012 Cuenya, Héctor H.; Levis, Fabián E.; Ridolfi, Claudia V. 1 2012 A projection-valued measure for a countable iterated function system. Zbl 1478.46043 Barrozo, M. F.; Levis, F. E.; Ridolfi, C. V. 1 2021 Extended best \(L^p\)-approximation is near-best approximation in \(L^q, p - 1 \leq q < p\). Zbl 1521.41003 Kovac, F. D.; Levis, F. E. 1 2022 Taylor’s inequalities in Orlicz-Sobolev type spaces. Zbl 07747151 Kovac, Federico Dario; Levis, Fabián Eduardo 1 2023 Taylor’s inequalities in Orlicz-Sobolev type spaces. Zbl 07747151 Kovac, Federico Dario; Levis, Fabián Eduardo 1 2023 Extended best polynomial approximation operator in Orlicz-Lorentz spaces. Zbl 07747251 Ferreyra, David Eduardo; Gareis, María Inés; Levis, Fabián Eduardo 2 2022 Extended best \(L^p\)-approximation is near-best approximation in \(L^q, p - 1 \leq q < p\). Zbl 1521.41003 Kovac, F. D.; Levis, F. E. 1 2022 The weak core inverse. Zbl 1465.15008 Ferreyra, D. E.; Levis, F. E.; Priori, A. N.; Thome, N. 9 2021 A projection-valued measure for a countable iterated function system. Zbl 1478.46043 Barrozo, M. F.; Levis, F. E.; Ridolfi, C. V. 1 2021 Characterizations of \(k\)-commutative equalities for some outer generalized inverses. Zbl 1431.15006 Ferreyra, D. E.; Levis, F. E.; Thome, N. 26 2020 Solving an open problem about the G-Drazin partial order. Zbl 1435.15002 Ferreyra, David; Lattanzi, Marina; Levis, Fabián; Thome, Nestor 4 2020 On convergence of subspaces generated by dilations of polynomials. An application to best local approximation. Zbl 1444.41003 Levis, Fabián E.; Ridolfi, Claudia V. 1 2020 Polynomial inequalities on measurable sets in Lorentz spaces and their applications. Zbl 1457.46041 Levis, F. E. 1 2020 A new approach to derivatives in \(L^2\)-spaces. Zbl 1447.41012 Ferreyra, D. E.; Levis, F. E.; Roldán, M. V. 1 2020 Parametrized solutions \(X\) of the system \(AXA = AEA\) and \(A^k EAX = XAEA^k\) for a matrix \(A\) having index \(k\). Zbl 1441.15012 Ferreyra, David E.; Lattanzi, Marina; Levis, Fabián E.; Thome, Néstor 6 2019 Left and right generalized Drazin invertible operators on Banach spaces and applications. Zbl 1512.47005 Ferreyra, D. E.; Lattanzim, M.; Levis, F. E.; Thome, N. 3 2019 Revisiting the core EP inverse and its extension to rectangular matrices. Zbl 1390.15010 Ferreyra, D. E.; Levis, F. E.; Thome, N. 70 2018 Maximal classes of matrices determining generalized inverses. Zbl 1427.15004 Ferreyra, D. E.; Levis, F. E.; Thome, N. 46 2018 The best multipoint Padé approximant. Zbl 1410.41008 Levis, Fabian Eduardo; Rodriguez, Claudia N. 1 2018 Existence and characterization of best \(\varphi\)-approximations by linear subspaces. Zbl 1380.46023 Benavente, Ana; Favier, Sergio; Levis, Fabián 1 2017 Multipoint Padé approximants as limits of rational functions of best approximation in the complex domain. Zbl 1379.41015 Levis, Fabián E.; Rodriguez, Claudia N. 1 2015 Existence of optimal subspaces in reflexive Banach spaces. Zbl 1381.46061 Cuenya, H. H.; Levis, F. E. 1 2015 Pólya-type polynomial inequalities in Orlicz spaces and best local approximation. Zbl 1279.41012 Cuenya, Héctor H.; Levis, Fabián E.; Ridolfi, Claudia V. 1 2012 Best local approximation in Orlicz spaces. Zbl 1238.41006 Cuenya, H.; Levis, F.; Marano, M.; Ridolfi, C. 4 2011 Weak inequalities for maximal functions in Orlicz-Lorentz spaces and applications. Zbl 1186.41019 Levis, Fabián E. 10 2010 Weighted best local \(\|\cdot\|\)-approximation in Orlicz spaces. Zbl 1252.41008 Cuenya, H.; Favier, S.; Levis, F.; Ridolfi, C. 2 2010 Interpolation and best simultaneous approximation. Zbl 1207.41009 Cuenya, Héctor H.; Levis, Fabián E. 2 2010 Best simultaneous approximation on small regions. Zbl 1179.41017 Cuenya, H. H.; Levis, F. E.; Lorenzo, M. D. 2 2009 Best constant approximants in Orlicz-Lorentz spaces. Zbl 1185.41030 Levis, F. E.; Cuenya, H. H.; Priori, A. N. 7 2008 Gateaux differentiability in Orlics-Lorentz spaces and applications. Zbl 1139.58005 Levis, Fabian E.; Cuenya, Hector H. 13 2007 A property of the planar measure of the lemniscates. Zbl 1123.32006 Cuenya, H. H.; Levis, F. E. 2 2007 Pólya-type polynomial inequalities in \(L^p\) spaces and best local approximation. Zbl 1092.41006 Cuenya, H. H.; Levis, F. E. 6 2005 Best constant approximants in Lorentz spaces. Zbl 1080.41024 Levis, F. E.; Cuenya, H. H. 4 2004 Gâteaux differentiability for functionals of type Orlicz-Lorentz. Zbl 1097.46507 Levis, F. E.; Cuenya, H. H. 2 2004 all cited Publications top 5 cited Publications all top 5 Cited by 109 Authors 41 Mosić, Dijana 28 Stanimirović, Predrag S. 17 Levis, Fabián Eduardo 15 Kyrchei, Ivan I. 14 Ferreyra, David Eduardo 11 Chen, Jianlong 11 Ma, Haifeng 11 Thome, Néstor 7 Cuenya, Héctor Hugo 7 Foralewski, Paweł 5 Behera, Ratikanta 5 Sahoo, Jajati Keshari 4 Cui, Yunan 4 Gao, Yuefeng 4 Katsikis, Vasilios N. 4 Lattanzi, Marina Beatriz 4 Liu, Xiaoji 4 Malik, Saroj B. 4 Wang, Hongxing 4 Zhang, Daochang 4 Zuo, Kezheng 3 Ciesielski, Maciej 3 Hernández, M. V. 3 Kamińska, Anna 3 Patrício, Pedro 3 Priori, A. N. 3 Stojanović, Katarina S. 3 Zhou, Mengmeng 3 Zhou, Yukun 2 Chen, Yang 2 Deng, Chunyuan 2 Gareis, María Inés 2 Hudzik, Henryk 2 Ji, Jun 2 Kończak, Joanna 2 Maharana, Gayatri 2 Marovt, Janko 2 Orquera, V. 2 Ridolfi, Claudia V. 2 Rodriguez, Claudia N. 2 Roldán, M. V. 2 Stupina, Alena A. 2 Wei, Yimin 2 Wu, Cang 1 Agarwal, Ravi P. 1 Alimov, Alexey R. 1 Berkani, Mohammed 1 Cabrelli, Carlos A. 1 Cavaliere, Paola 1 Cheng, Yingjie 1 Chitescu, Ion 1 Cianchi, Andrea 1 Deng, Xiaoli 1 Dolinar, Gregor 1 Fan, Liping 1 Favier, Sergio J. 1 Fu, ZhiMei 1 Gao, Xiaoshuang 1 Ghorbel, Ayoub 1 Hu, Jianping 1 Ioana, Loredana 1 Jiang, Wanlin 1 Jin, Hongwei 1 Kaczmarek, Radosław 1 Kheirandish, Ehsan 1 Kim, Jong Kyu 1 Kolwicz, Paweł 1 Kovac, Federico Dario 1 Kuang, Ruifei 1 Leśnik, Karol 1 Li, Jing 1 Li, Tingting 1 Li, Wende 1 Lin, Chujian 1 Liu, Na 1 Ma, Congbian 1 Maligranda, Lech 1 Miculescu, Radu 1 Mishonov, Todor M. 1 Mnif, Maher 1 Mosquera, Carolina A. 1 Niţă, Lucian 1 Pablos Romo, Fernando 1 Panda, Saroja Kumar 1 Paternostro, Victoria 1 Pick, Luboš 1 Płuciennik, Ryszard 1 Richards, Trevor J. 1 Ryutin, Konstantin S. 1 Salemi, Abbas 1 Sfetcu, Răzvan-Cornel 1 Sitha, Bibekananda 1 Slavíková, Lenka 1 Solynin, Alexander Yu. 1 Torigino, C. 1 Trương Minh Tuyên 1 Tsar’kov, Igor’ Germanovich 1 Varonov, Albert M. 1 Wang, Long 1 Wang, Qingwen ...and 9 more Authors all top 5 Cited in 50 Serials 19 Linear and Multilinear Algebra 12 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 10 Applied Mathematics and Computation 7 Journal of Mathematical Analysis and Applications 5 Numerical Functional Analysis and Optimization 5 Quaestiones Mathematicae 5 Computational and Applied Mathematics 5 Advances in Applied Clifford Algebras 4 Mathematische Nachrichten 4 Bulletin of the Iranian Mathematical Society 3 Journal of Approximation Theory 3 Journal of Computational and Applied Mathematics 3 Results in Mathematics 3 Aequationes Mathematicae 3 ELA. The Electronic Journal of Linear Algebra 3 Journal of Applied Mathematics and Computing 2 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 2 Positivity 2 Journal of Inequalities and Applications 2 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 2 Fixed Point Theory and Applications 2 Frontiers of Mathematics in China 2 Commentationes Mathematicae 2 Journal of Mathematics 2 AIMS Mathematics 1 Indian Journal of Pure & Applied Mathematics 1 Russian Mathematical Surveys 1 Collectanea Mathematica 1 Mathematica Slovaca 1 Real Analysis Exchange 1 Acta Mathematica Hungarica 1 Applied Numerical Mathematics 1 Turkish Journal of Mathematics 1 Georgian Mathematical Journal 1 Filomat 1 Mathematical Inequalities & Applications 1 Communications in Contemporary Mathematics 1 Journal of the Australian Mathematical Society 1 Journal of Applied Mathematics 1 Acta Mathematica Scientia. Series B. (English Edition) 1 Bulletin of the Brazilian Mathematical Society. New Series 1 Journal of Algebra and its Applications 1 Journal of Function Spaces and Applications 1 Operators and Matrices 1 Communications in Mathematical Research 1 Annals of Functional Analysis 1 ISRN Mathematical Analysis 1 Complex Analysis and its Synergies 1 Special Matrices 1 Open Mathematics all top 5 Cited in 18 Fields 89 Linear and multilinear algebra; matrix theory (15-XX) 24 Operator theory (47-XX) 23 Functional analysis (46-XX) 23 Numerical analysis (65-XX) 19 Approximations and expansions (41-XX) 7 Associative rings and algebras (16-XX) 5 Order, lattices, ordered algebraic structures (06-XX) 4 Real functions (26-XX) 4 Harmonic analysis on Euclidean spaces (42-XX) 3 Functions of a complex variable (30-XX) 2 Abstract harmonic analysis (43-XX) 1 General algebraic systems (08-XX) 1 Measure and integration (28-XX) 1 Several complex variables and analytic spaces (32-XX) 1 General topology (54-XX) 1 Probability theory and stochastic processes (60-XX) 1 Computer science (68-XX) 1 Information and communication theory, circuits (94-XX) Citations by Year