Edit Profile (opens in new tab) Urbina Romero, Wilfredo O. Co-Author Distance Author ID: urbina-romero.wilfredo-o Published as: Urbina, Wilfredo; Urbina, Wilfredo O.; Urbina R., Wilfredo O.; Urbina R., Wilfredo; Urbina Romero, W.; Urbina Romero, Wilfredo O.; Urbina Romero, Wilfredo; Urbina-Romero, Wilfredo; Urbina, W. O.; Urbina, W. more...less Further Spellings: Urbina Romero, Wilfredo Oscar Homepage: https://www.roosevelt.edu/academics/faculty/profile/wurbinaromero External Links: MGP · ORCID · Google Scholar · ResearchGate · IdRef Documents Indexed: 59 Publications since 1990, including 1 Book and 10 Additional arXiv Preprints 6 Contributions as Editor Reviewing Activity: 5 Reviews Co-Authors: 40 Co-Authors with 59 Joint Publications 649 Co-Co-Authors all top 5 Co-Authors 6 single-authored 13 Pineda, Ebner 6 Marcantognini, Stefania A. M. 6 Stokolos, Alexander M. 5 Calderón, Calixto Pedro 5 Forzani, Liliana 5 Navas, Eduard 5 Pereyra, María Cristina 5 Pijeira-Cabrera, Héctor 4 Balderrama, Cristina 4 Graczyk, Piotr 4 Scotto, Roberto 3 Bárcenas, Diómedes 3 Gatto, A. Eduardo 3 López Palacios, Iris Athamaica 3 Moreno, Jorge R. 3 Rodríguez, Luz 2 Bello Cruz, Jose Yunier 2 Coré, A. Susana 2 DiMartino, Robert 2 Leiva, Hugo 2 Morán, María Dolores 2 Narváez, Miguel 2 Quintana, Yamilet 1 Betancor Perez, Jorge Juan 1 Díaz-González, Abel 1 DiMartino, Roberto 1 Fundora Rolo, Alfredo 1 Georgakis, Constantine 1 González F., Ingnacio J. 1 Gutiérrez, Cristian E. 1 Loeb, Jean-Jacques 1 Marcellán Español, Francisco 1 Márquez, Carlos R. H. 1 Mendoza, Gerardo A. 1 Nava, Eduard 1 Nowak, Adam 1 Octavio, Alfredo 1 Sjogren, Peter 1 Wszolek, Lauren 1 Zayed, Ahmed I. all top 5 Serials 4 Acta Cientifica Venezolana 4 Quaestiones Mathematicae 3 Divulgaciones Matemáticas 2 Proceedings of the American Mathematical Society 2 Revista Colombiana de Matemáticas 2 Revista de la Unión Matemática Argentina 2 Journal de Mathématiques Pures et Appliquées. Neuvième Série 2 Bulletin des Sciences Mathématiques 2 Association for Women in Mathematics Series 1 International Journal of Control 1 Journal of Mathematical Analysis and Applications 1 Rocky Mountain Journal of Mathematics 1 Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie IV 1 Illinois Journal of Mathematics 1 Journal of Approximation Theory 1 IMA Journal of Mathematical Control and Information 1 SIAM Journal on Mathematical Analysis 1 Integral Transforms and Special Functions 1 The Journal of Fourier Analysis and Applications 1 La Gaceta de la Real Sociedad Matemática Española 1 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 1 Contemporary Mathematics 1 Séminaires et Congrès 1 Complex Analysis and Operator Theory 1 Springer Proceedings in Mathematics & Statistics 1 Journal of Function Spaces 1 Springer Monographs in Mathematics all top 5 Fields 40 Harmonic analysis on Euclidean spaces (42-XX) 25 Operator theory (47-XX) 23 Functional analysis (46-XX) 15 Probability theory and stochastic processes (60-XX) 12 Real functions (26-XX) 10 Special functions (33-XX) 6 General and overarching topics; collections (00-XX) 6 History and biography (01-XX) 4 Measure and integration (28-XX) 4 Partial differential equations (35-XX) 2 Approximations and expansions (41-XX) 2 Integral transforms, operational calculus (44-XX) 2 Systems theory; control (93-XX) 1 Number theory (11-XX) 1 Functions of a complex variable (30-XX) 1 Potential theory (31-XX) 1 Ordinary differential equations (34-XX) 1 Abstract harmonic analysis (43-XX) 1 Integral equations (45-XX) 1 Calculus of variations and optimal control; optimization (49-XX) 1 Global analysis, analysis on manifolds (58-XX) 1 Fluid mechanics (76-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 34 Publications have been cited 214 times in 144 Documents Cited by ▼ Year ▼ Higher order Riesz transforms, fractional derivatives, and Sobolev spaces for Laguerre expansions. Zbl 1129.42015 Graczyk, Piotr; Loeb, Jean-J.; López P., Iris A.; Nowak, Adam; Urbina R., Wilfredo O. 35 2005 On singular integrals with respect to the Gaussian measure. Zbl 0737.42018 Urbina, Wilfredo 25 1990 Gaussian harmonic analysis. Zbl 1421.42001 Urbina-Romero, Wilfredo 23 2019 On the \(L^p\) boundedness of the non-centered Gaussian Hardy-Littlewood maximal function. Zbl 0991.42012 Forzani, Liliana; Scotto, Roberto; Sjögren, Peter; Urbina, Wilfredo 13 2002 Riesz and Bessel potentials, the \(g^k\) functions and an area function for the Gaussian measure \(\gamma\). Zbl 0996.42011 Forzani, Liliana; Scotto, Roberto; Urbina, Wilfredo 9 2000 Fractional differentiation for the Gaussian measure and applications. Zbl 1108.26007 López, Iris A.; Urbina, Wilfredo O. 8 2004 Some results on Gaussian Besov-Lipschitz spaces and Gaussian Triebel-Lizorkin spaces. Zbl 1192.46032 Pineda, Ebner; Urbina, Wilfredo 8 2009 Non tangential convergence for the Ornstein-Uhlenbeck semigroup. Zbl 1217.60028 Pineda, Ebner; Urbina R., Wilfredo 8 2008 On Gaussian Lipschitz spaces and the boundedness of fractional integrals and fractional derivatives on them. Zbl 1404.42053 Gatto, A. Eduardo; Urbina R., Wilfredo O. 7 2015 Controllability of the Ornstein-Uhlenbeck equation. Zbl 1106.93007 Bárcenas, Diomedes; Leiva, Hugo; Urbina, Wilfredo 6 2006 Sobolev-Gegenbauer-type orthogonality and a hydrodynamical interpretation. Zbl 1231.42024 Bello Cruz, J. Y.; Pijeira Cabrera, H.; Márquez, C.; Urbina Romero, W. 6 2011 Estimates for the maximal operator of the Ornstein-Uhlenbeck semigroup. Zbl 0737.42019 Gutiérrez, Cristian E.; Urbina, Wilfredo O. 6 1991 On polar Legendre polynomials. Zbl 1223.42021 Pijeira Cabrera, H.; Bello Cruz, J.; Urbina Romero, W. 6 2010 Measurable multifunctions in nonseparable Banach spaces. Zbl 0894.28005 Bárcenas, Diómedes; Urbina, Wilfredo 5 1997 Fractional integration and fractional differentiation for \(d\)-dimensional Jacobi expansions. Zbl 1198.42024 Balderrama, Christina; Urbina R., Wilfredo O. 5 2008 A simple proof of the \(L^p\) continuity of the higher order Riesz transforms with respect to the Gaussian measure \(\gamma_d\). Zbl 1006.47030 Forzani, Liliana; Scotto, Roberto; Urbina, Wilfredo 4 2001 On Abel summability of Jacobi polynomials series, the Watson kernel and applications. Zbl 1396.42005 Calderón, Calixto P.; Urbina, Wilfredo O. 4 2013 Discrete-continuous Jacobi-Sobolev spaces and Fourier series. Zbl 1462.42047 Díaz-González, Abel; Marcellán, Francisco; Pijeira-Cabrera, Héctor; Urbina, Wilfredo 4 2021 Fractional integration and fractional differentiation for Jacobi expansions. Zbl 1213.42097 Balderrama, Cristina; Urbina, Wilfredo 4 2007 Semigroups of operators for classical orthogonal polynomials and functional inequalities. Zbl 1306.47054 Urbina, Wilfredo O. 3 2012 Riesz potentials, Bessel potentials, and fractional derivatives on Besov-Lipschitz spaces for the Gaussian measure. Zbl 1291.47036 Gatto, A. Eduardo; Pineda, Ebner; Urbina, Wilfredo O. 3 2013 Controllability of Laguerre and Jacobi equations. Zbl 1133.93007 Barcenas, D.; Leiva, H.; Quintana, Y.; Urbina, W. 3 2007 The Mathematical Association of Venezuela. (La Asociación Matemática Venezolana.) Zbl 1114.01332 Urbina Romero, Wilfredo O. 3 2004 Poisson-Hermite representation of solutions for the equation \(\frac{\partial^2}{\partial t^2}u(x,t)+\Delta_x u(x,t)-2x\cdot\nabla_x u(x,t)=0\). Zbl 0998.31001 Forzani, Liliana; Urbina, Wilfredo 2 2001 A journey to sets similar to Cantor set. Zbl 1408.28011 DiMartino, Robert; Urbina, Wilfredo O. 2 2018 A transference result of the \(L^p\) continuity from Jacobi Riesz transform to the Gaussian and Laguerre Riesz transforms. Zbl 1304.42068 Navas, Eduard; Urbina, Wilfredo O. 2 2013 A formula for polynomials with Hermitian matrix argument. Zbl 1076.33009 Balderrama, Cristina; Graczyk, Piotr; Urbina, Wilfredo O. 2 2005 On the maximal function for the generalized Ornstein-Uhlenbeck semigroup. Zbl 1143.42307 Betancor, Jorge; Forzani, Liliana; Scotto, Roberto; Urbina, Wilfredo O. 2 2007 Some non standard applications of the Laplace method. Zbl 1325.44001 Calderón, Calixto P.; Urbina, Wilfredo O. 1 2014 A transference result of the \(L^p\)-continuity of the Jacobi Littlewood-Paley \(g\)-function to the Gaussian and Laguerre Littlewood-Paley \(g\)-function. Zbl 1398.42014 Navas, Eduard; Urbina, Wilfredo O. 1 2018 On some functions of the Littlewood Paley theory for \(\gamma_{d}\) and a characterization of Gaussian Sobolev spaces of integer order. Zbl 1129.42414 López, Iris A.; Urbina, Wilfredo O. 1 2004 Harmonic analysis, partial differential equations, Banach spaces, and operator theory. Volume 2. Celebrating Cora Sadosky’s life. Zbl 1381.00044 1 2017 Riesz potentials, Bessel potentials and fractional derivatives on Triebel-Lizorkin spaces for the Gaussian measure. Zbl 1304.47053 Gatto, A. Eduardo; Pineda, Ebner; Urbina, Wilfredo O. 1 2015 Asymptotic behavior of orthogonal polynomials primitives. Zbl 1253.42019 Fundora Rolo, Alfredo; Pijeira Cabrera, Héctor; Urbina Romero, Wilfredo 1 2001 Discrete-continuous Jacobi-Sobolev spaces and Fourier series. Zbl 1462.42047 Díaz-González, Abel; Marcellán, Francisco; Pijeira-Cabrera, Héctor; Urbina, Wilfredo 4 2021 Gaussian harmonic analysis. Zbl 1421.42001 Urbina-Romero, Wilfredo 23 2019 A journey to sets similar to Cantor set. Zbl 1408.28011 DiMartino, Robert; Urbina, Wilfredo O. 2 2018 A transference result of the \(L^p\)-continuity of the Jacobi Littlewood-Paley \(g\)-function to the Gaussian and Laguerre Littlewood-Paley \(g\)-function. Zbl 1398.42014 Navas, Eduard; Urbina, Wilfredo O. 1 2018 Harmonic analysis, partial differential equations, Banach spaces, and operator theory. Volume 2. Celebrating Cora Sadosky’s life. Zbl 1381.00044 1 2017 On Gaussian Lipschitz spaces and the boundedness of fractional integrals and fractional derivatives on them. Zbl 1404.42053 Gatto, A. Eduardo; Urbina R., Wilfredo O. 7 2015 Riesz potentials, Bessel potentials and fractional derivatives on Triebel-Lizorkin spaces for the Gaussian measure. Zbl 1304.47053 Gatto, A. Eduardo; Pineda, Ebner; Urbina, Wilfredo O. 1 2015 Some non standard applications of the Laplace method. Zbl 1325.44001 Calderón, Calixto P.; Urbina, Wilfredo O. 1 2014 On Abel summability of Jacobi polynomials series, the Watson kernel and applications. Zbl 1396.42005 Calderón, Calixto P.; Urbina, Wilfredo O. 4 2013 Riesz potentials, Bessel potentials, and fractional derivatives on Besov-Lipschitz spaces for the Gaussian measure. Zbl 1291.47036 Gatto, A. Eduardo; Pineda, Ebner; Urbina, Wilfredo O. 3 2013 A transference result of the \(L^p\) continuity from Jacobi Riesz transform to the Gaussian and Laguerre Riesz transforms. Zbl 1304.42068 Navas, Eduard; Urbina, Wilfredo O. 2 2013 Semigroups of operators for classical orthogonal polynomials and functional inequalities. Zbl 1306.47054 Urbina, Wilfredo O. 3 2012 Sobolev-Gegenbauer-type orthogonality and a hydrodynamical interpretation. Zbl 1231.42024 Bello Cruz, J. Y.; Pijeira Cabrera, H.; Márquez, C.; Urbina Romero, W. 6 2011 On polar Legendre polynomials. Zbl 1223.42021 Pijeira Cabrera, H.; Bello Cruz, J.; Urbina Romero, W. 6 2010 Some results on Gaussian Besov-Lipschitz spaces and Gaussian Triebel-Lizorkin spaces. Zbl 1192.46032 Pineda, Ebner; Urbina, Wilfredo 8 2009 Non tangential convergence for the Ornstein-Uhlenbeck semigroup. Zbl 1217.60028 Pineda, Ebner; Urbina R., Wilfredo 8 2008 Fractional integration and fractional differentiation for \(d\)-dimensional Jacobi expansions. Zbl 1198.42024 Balderrama, Christina; Urbina R., Wilfredo O. 5 2008 Fractional integration and fractional differentiation for Jacobi expansions. Zbl 1213.42097 Balderrama, Cristina; Urbina, Wilfredo 4 2007 Controllability of Laguerre and Jacobi equations. Zbl 1133.93007 Barcenas, D.; Leiva, H.; Quintana, Y.; Urbina, W. 3 2007 On the maximal function for the generalized Ornstein-Uhlenbeck semigroup. Zbl 1143.42307 Betancor, Jorge; Forzani, Liliana; Scotto, Roberto; Urbina, Wilfredo O. 2 2007 Controllability of the Ornstein-Uhlenbeck equation. Zbl 1106.93007 Bárcenas, Diomedes; Leiva, Hugo; Urbina, Wilfredo 6 2006 Higher order Riesz transforms, fractional derivatives, and Sobolev spaces for Laguerre expansions. Zbl 1129.42015 Graczyk, Piotr; Loeb, Jean-J.; López P., Iris A.; Nowak, Adam; Urbina R., Wilfredo O. 35 2005 A formula for polynomials with Hermitian matrix argument. Zbl 1076.33009 Balderrama, Cristina; Graczyk, Piotr; Urbina, Wilfredo O. 2 2005 Fractional differentiation for the Gaussian measure and applications. Zbl 1108.26007 López, Iris A.; Urbina, Wilfredo O. 8 2004 The Mathematical Association of Venezuela. (La Asociación Matemática Venezolana.) Zbl 1114.01332 Urbina Romero, Wilfredo O. 3 2004 On some functions of the Littlewood Paley theory for \(\gamma_{d}\) and a characterization of Gaussian Sobolev spaces of integer order. Zbl 1129.42414 López, Iris A.; Urbina, Wilfredo O. 1 2004 On the \(L^p\) boundedness of the non-centered Gaussian Hardy-Littlewood maximal function. Zbl 0991.42012 Forzani, Liliana; Scotto, Roberto; Sjögren, Peter; Urbina, Wilfredo 13 2002 A simple proof of the \(L^p\) continuity of the higher order Riesz transforms with respect to the Gaussian measure \(\gamma_d\). Zbl 1006.47030 Forzani, Liliana; Scotto, Roberto; Urbina, Wilfredo 4 2001 Poisson-Hermite representation of solutions for the equation \(\frac{\partial^2}{\partial t^2}u(x,t)+\Delta_x u(x,t)-2x\cdot\nabla_x u(x,t)=0\). Zbl 0998.31001 Forzani, Liliana; Urbina, Wilfredo 2 2001 Asymptotic behavior of orthogonal polynomials primitives. Zbl 1253.42019 Fundora Rolo, Alfredo; Pijeira Cabrera, Héctor; Urbina Romero, Wilfredo 1 2001 Riesz and Bessel potentials, the \(g^k\) functions and an area function for the Gaussian measure \(\gamma\). Zbl 0996.42011 Forzani, Liliana; Scotto, Roberto; Urbina, Wilfredo 9 2000 Measurable multifunctions in nonseparable Banach spaces. Zbl 0894.28005 Bárcenas, Diómedes; Urbina, Wilfredo 5 1997 Estimates for the maximal operator of the Ornstein-Uhlenbeck semigroup. Zbl 0737.42019 Gutiérrez, Cristian E.; Urbina, Wilfredo O. 6 1991 On singular integrals with respect to the Gaussian measure. Zbl 0737.42018 Urbina, Wilfredo 25 1990 all cited Publications top 5 cited Publications all top 5 Cited by 161 Authors 15 Betancor Perez, Jorge Juan 14 Urbina Romero, Wilfredo O. 12 Rodríguez-Mesa, Lourdes 12 Sjogren, Peter 10 Nowak, Adam 8 Fariña, Juan Carlos 7 Castro, Alejandro J. 7 Mauceri, Giancarlo 7 Pijeira-Cabrera, Héctor 7 Torrea, José Luis 6 Leiva, Hugo 6 Scotto, Roberto 5 De León-Contreras, Marta 5 Forzani, Liliana 5 Pineda, Ebner 5 Sasso, Emanuela 4 Bogachev, Vladimir Igorevich 4 López Palacios, Iris Athamaica 4 Meda, Stefano 3 Almeida, Víctor M. 3 Bárcenas, Diómedes 3 El Allali, Mohammed 3 Ezzaki, Fatima 3 Graczyk, Piotr 3 Langowski, Bartosz 3 Liu, Liguang 3 Merentes, Nelson J. 3 Pick, Luboš 3 Sánchez, José Luis 3 Stempak, Krzysztof 3 Szarek, Tomasz Zachary 3 Viviani, Beatriz E. 2 Aimar, Hugo A. 2 Arras, Benjamin 2 Bello Cruz, Jose Yunier 2 Borrego-Morell, Jorge A. 2 Casarino, Valentina 2 Cho, Hong Rae 2 Choe, Boo Rim 2 Cianchi, Andrea 2 Ciatti, Paolo 2 Di, Boning 2 El-Louh, M’hamed 2 Flores, Guillermo Javier 2 Gatto, A. Eduardo 2 Harboure, Eleonor 2 He, Qianjun 2 Infante, Adrián 2 Koo, Hyungwoon 2 Kosov, Egor D. 2 Li, Hongquan 2 Liu, Yu 2 Magomed-Kasumov, Magomedrasul G. 2 Moreno, Jorge R. 2 Musil, Vít 2 Navas, Eduard 2 Quintana, Yamilet 2 Rivero-Castillo, Daniel 2 Sanabria, Alejandro 2 Soria, Fernando 2 Teuwen, Jonas 2 Wick, Brett Duane 2 Wu, Shengkun 2 Yan, Dunyan 2 Yang, Dachun 1 Abadias, Luciano 1 Ahmed, Taieb 1 Aldaz, Jésus Munárriz 1 Aliev, Ilham A. 1 Amenta, Alex 1 Arenas, Alberto 1 Baena-Miret, Sergi 1 Balderrama, Cristina 1 Bayrakci, Simten 1 Bello Hernández, Manuel 1 Calderón, Calixto Pedro 1 Carbonaro, Andrea 1 Chen, Yanping 1 Ciaurri, Óscar 1 Curbelo, Jezabel 1 Dalmasso, Estefanía 1 De Carli, Laura 1 Decreusefond, Laurent 1 Demni, Nizar 1 Díaz-González, Abel 1 Dominguez, Oscar 1 Duong, Xuan Thinh 1 Frymark, Dale 1 Ganguly, Pritam 1 García-Ardila, Juan Carlos 1 García-Cuerva, José L. 1 Garrigós, Gustavo 1 Ghosh, Sunit 1 Gogatishvili, Amiran 1 Gómez, Ivana 1 Gozlan, Nathael 1 Halconruy, Hélène 1 Hamdi, Tarek 1 Harris, Sean 1 Hartzstein, Silvia I. ...and 61 more Authors all top 5 Cited in 80 Serials 11 Journal of Mathematical Analysis and Applications 11 Potential Analysis 5 Journal of Functional Analysis 5 The Journal of Fourier Analysis and Applications 5 Mediterranean Journal of Mathematics 4 Advances in Mathematics 4 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 3 Journal d’Analyse Mathématique 3 Journal of Approximation Theory 3 Journal de Mathématiques Pures et Appliquées. Neuvième Série 3 Integral Transforms and Special Functions 2 Studia Mathematica 2 Czechoslovak Mathematical Journal 2 Integral Equations and Operator Theory 2 Journal of Differential Equations 2 Mathematische Annalen 2 Mathematische Zeitschrift 2 Proceedings of the American Mathematical Society 2 Transactions of the American Mathematical Society 2 Revista Matemática Iberoamericana 2 Publicacions Matemàtiques 2 Stochastic Processes and their Applications 2 Indagationes Mathematicae. New Series 2 Doklady Mathematics 2 Acta Mathematica Sinica. English Series 2 Analysis & PDE 1 Analysis Mathematica 1 Bulletin of the Australian Mathematical Society 1 International Journal of Control 1 Israel Journal of Mathematics 1 Periodica Mathematica Hungarica 1 Rocky Mountain Journal of Mathematics 1 Russian Mathematical Surveys 1 Arkiv för Matematik 1 Theory of Probability and its Applications 1 Annali di Matematica Pura ed Applicata. Serie Quarta 1 Applied Mathematics and Computation 1 Canadian Journal of Mathematics 1 Functional Analysis and its Applications 1 Monatshefte für Mathematik 1 Nagoya Mathematical Journal 1 Quaestiones Mathematicae 1 Results in Mathematics 1 Revista Colombiana de Matemáticas 1 Semigroup Forum 1 Siberian Mathematical Journal 1 Constructive Approximation 1 The Journal of Geometric Analysis 1 Numerical Algorithms 1 Russian Mathematics 1 Calculus of Variations and Partial Differential Equations 1 Annales Mathématiques Blaise Pascal 1 Fractals 1 Journal of Convex Analysis 1 Bulletin des Sciences Mathématiques 1 Sbornik: Mathematics 1 Arab Journal of Mathematical Sciences 1 Mathematical Problems in Engineering 1 Abstract and Applied Analysis 1 Infinite Dimensional Analysis, Quantum Probability and Related Topics 1 Revista Matemática Complutense 1 Annals of Mathematics. Second Series 1 Journal of Evolution Equations 1 Comptes Rendus. Mathématique. Académie des Sciences, Paris 1 Communications on Pure and Applied Analysis 1 Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie V 1 Analysis and Applications (Singapore) 1 Advances in Difference Equations 1 African Diaspora Journal of Mathematics 1 Cubo 1 Proyecciones 1 Proceedings of the Steklov Institute of Mathematics 1 Banach Journal of Mathematical Analysis 1 Journal of Pseudo-Differential Operators and Applications 1 Azerbaijan Journal of Mathematics 1 Journal of Function Spaces 1 International Journal of Partial Differential Equations 1 European Journal of Mathematics 1 Advances in Operator Theory 1 Journal of Computational and Theoretical Transport all top 5 Cited in 29 Fields 91 Harmonic analysis on Euclidean spaces (42-XX) 45 Operator theory (47-XX) 42 Functional analysis (46-XX) 26 Special functions (33-XX) 18 Real functions (26-XX) 18 Partial differential equations (35-XX) 17 Probability theory and stochastic processes (60-XX) 14 Measure and integration (28-XX) 7 Integral transforms, operational calculus (44-XX) 5 Functions of a complex variable (30-XX) 5 Systems theory; control (93-XX) 4 Abstract harmonic analysis (43-XX) 4 Global analysis, analysis on manifolds (58-XX) 3 Potential theory (31-XX) 3 Several complex variables and analytic spaces (32-XX) 2 Number theory (11-XX) 2 Ordinary differential equations (34-XX) 2 Difference and functional equations (39-XX) 1 History and biography (01-XX) 1 Mathematical logic and foundations (03-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Group theory and generalizations (20-XX) 1 Sequences, series, summability (40-XX) 1 Approximations and expansions (41-XX) 1 Differential geometry (53-XX) 1 Fluid mechanics (76-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Astronomy and astrophysics (85-XX) Citations by Year