Edit Profile (opens in new tab) Post, Olaf Co-Author Distance Author ID: post.olaf Published as: Post, Olaf; Post, O. External Links: MGP Documents Indexed: 55 Publications since 2001, including 1 Book and 2 Additional arXiv Preprints 1 Contribution as Editor Reviewing Activity: 13 Reviews Co-Authors: 28 Co-Authors with 42 Joint Publications 716 Co-Co-Authors all top 5 Co-Authors 14 single-authored 8 Lledó, Fernando 7 Simmer, Jan 5 Exner, Pavel 5 Fabila-Carrasco, John Stewart 3 Anné, Colette 3 Hempel, Rainer 3 Peyerimhoff, Norbert 2 Khrabustovskyi, Andrii 2 Lenz, Daniel H. 2 Veselić, Ivan 1 Behrndt, Jussi 1 Carron, Gilles 1 Egidi, Michela 1 Güneysu, Batu 1 Hislop, Peter D. 1 Kuchment, Peter A. 1 Lange, Carsten 1 Liu, Shiping 1 Mugnolo, Delio 1 Nittka, Robin 1 Pankrashkin, Konstantin 1 Ramos Olivé, Xavier 1 Rose, Christian 1 Rückriemen, Ralf 1 Saburova, Natalia 1 Uebersohn, Christoph 1 Weder, Ricardo A. 1 Zimmer, Sebastian all top 5 Serials 4 Journal of Spectral Theory 3 Mathematische Nachrichten 3 Operators and Matrices 2 Communications in Mathematical Physics 2 Journal of Mathematical Analysis and Applications 2 Mathematische Zeitschrift 2 Linear Algebra and its Applications 2 Annales Henri Poincaré 2 Journal of Physics A: Mathematical and Theoretical 1 Journal of Mathematical Physics 1 Revue Roumaine de Mathématiques Pures et Appliquées 1 Reviews in Mathematical Physics 1 Journal of Geometry and Physics 1 Integral Equations and Operator Theory 1 Journal of Differential Equations 1 Journal of Functional Analysis 1 Mathematische Annalen 1 Asymptotic Analysis 1 The Journal of Geometric Analysis 1 Journal of Physics A: Mathematical and General 1 Calculus of Variations and Partial Differential Equations 1 Russian Journal of Mathematical Physics 1 Mathematical Physics, Analysis and Geometry 1 Oberwolfach Reports 1 Waves in Random and Complex Media 1 Lecture Notes in Mathematics 1 Complex Analysis and Operator Theory 1 Japanese Journal of Mathematics. 3rd Series 1 Symmetry 1 Analysis and Mathematical Physics all top 5 Fields 29 Partial differential equations (35-XX) 29 Operator theory (47-XX) 22 Global analysis, analysis on manifolds (58-XX) 18 Quantum theory (81-XX) 11 Combinatorics (05-XX) 6 Measure and integration (28-XX) 5 Ordinary differential equations (34-XX) 4 Differential geometry (53-XX) 3 Difference and functional equations (39-XX) 3 Statistical mechanics, structure of matter (82-XX) 2 Functional analysis (46-XX) 2 Manifolds and cell complexes (57-XX) 1 General and overarching topics; collections (00-XX) 1 Order, lattices, ordered algebraic structures (06-XX) 1 Group theory and generalizations (20-XX) 1 Potential theory (31-XX) 1 Dynamical systems and ergodic theory (37-XX) 1 Approximations and expansions (41-XX) 1 Computer science (68-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 46 Publications have been cited 689 times in 432 Documents Cited by ▼ Year ▼ Spectral analysis on graph-like spaces. Zbl 1247.58001 Post, Olaf 123 2012 On the spectra of carbon nano-structures. Zbl 1145.81032 Kuchment, Peter; Post, Olaf 88 2007 Convergence of spectra of graph-like thin manifolds. Zbl 1095.58007 Exner, Pavel; Post, Olaf 56 2005 Spectral convergence of quasi-one-dimensional spaces. Zbl 1187.81124 Post, Olaf 40 2006 Boundary pairs associated with quadratic forms. Zbl 1380.47001 Post, Olaf 23 2016 Spectral gaps for periodic elliptic operators with high contrast: an overview. Zbl 1061.35060 Hempel, Rainer; Post, Olaf 21 2003 Approximation of quantum graph vertex couplings by scaled Schrödinger operators on thin branched manifolds. Zbl 1179.81080 Exner, Pavel; Post, Olaf 20 2009 A general approximation of quantum graph vertex couplings by scaled Schrödinger operators on thin branched manifolds. Zbl 1270.81099 Exner, Pavel; Post, Olaf 20 2013 Eigenvalue bracketing for discrete and metric graphs. Zbl 1152.05044 Lledó, Fernando; Post, Olaf 19 2008 Branched quantum wave guides with Dirichlet boundary conditions: the decoupling case. Zbl 1072.81019 Post, Olaf 19 2005 Path integrals and the essential self-adjointness of differential operators on noncompact manifolds. Zbl 1279.47039 Güneysu, Batu; Post, Olaf 19 2013 Frustration index and Cheeger inequalities for discrete and continuous magnetic Laplacians. Zbl 1330.05103 Lange, Carsten; Liu, Shiping; Peyerimhoff, Norbert; Post, Olaf 18 2015 Periodic manifolds with spectral gaps. Zbl 1028.58029 Post, Olaf 18 2003 First order approach and index theorems for discrete and metric graphs. Zbl 1206.81044 Post, Olaf 14 2009 Anderson localization for radial tree-like random quantum graphs. Zbl 1267.81165 Hislop, Peter D.; Post, Olaf 14 2009 Existence of spectral gaps, covering manifolds and residually finite groups. Zbl 1146.58021 Lledó, Fernando; Post, Olaf 13 2008 Operator estimates for the crushed ice problem. Zbl 1415.35024 Khrabustovskyi, Andrii; Post, Olaf 13 2018 Wildly perturbed manifolds: norm resolvent and spectral convergence. Zbl 1469.58018 Anné, Colette; Post, Olaf 13 2021 Equilateral quantum graphs and boundary triples. Zbl 1153.81499 Post, Olaf 12 2008 Continuity of the integrated density of states on random length metric graphs. Zbl 1179.35333 Lenz, Daniel; Peyerimhoff, Norbert; Post, Olaf; Veselić, Ivan 12 2009 Norm convergence of sectorial operators on varying Hilbert spaces. Zbl 1305.47015 Mugnolo, Delio; Nittka, Robin; Post, Olaf 12 2013 Spectral analysis of metric graphs and related spaces. Zbl 1219.05089 Post, Olaf 10 2009 Continuity properties of the integrated density of states on manifolds. Zbl 1202.35071 Lenz, Daniel; Peyerimhoff, Norbert; Post, Olaf; Veselić, Ivan 9 2008 On open scattering channels for manifolds with ends. Zbl 1298.35129 Hempel, Rainer; Post, Olaf; Weder, Ricardo 8 2014 Spectral gaps and discrete magnetic Laplacians. Zbl 1385.05047 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 8 2018 Quasi-unitary equivalence and generalised norm resolvent convergence. Zbl 1438.47028 Post, Olaf; Simmer, Jan 8 2019 Approximation of fractals by discrete graphs: norm resolvent and spectral convergence. Zbl 1459.28008 Post, Olaf; Simmer, Jan 7 2018 First-order operators and boundary triples. Zbl 1181.35040 Post, O. 6 2007 Quantum networks modelled by graphs. Zbl 1180.81028 Exner, Pavel; Post, Olaf 6 2008 Convergence of resonances on thin branched quantum waveguides. Zbl 1152.81426 Exner, Pavel; Post, Olaf 5 2007 Gaps in the differential forms spectrum on cyclic coverings. Zbl 1166.58013 Anné, Colette; Carron, Gilles; Post, Olaf 5 2009 Generating spectral gaps by geometry. Zbl 1129.81032 Lledó, Fernando; Post, Olaf 4 2007 Eigenvalues in spectral gaps of a perturbed periodic manifold. Zbl 1064.35123 Post, Olaf 4 2003 Periodic manifolds, spectral gaps, and eigenvalues in gaps. Zbl 1008.58023 Post, Olaf 4 2001 A geometric approximation of \(\delta\)-interactions by Neumann Laplacians. Zbl 1523.47028 Khrabustovskyi, Andrii; Post, Olaf 3 2021 Spectral preorder and perturbations of discrete weighted graphs. Zbl 07503469 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 3 2022 Approximations of metric graphs by thick graphs and their Laplacians. Zbl 1423.41053 Post, Olaf 2 2019 Matching number, Hamiltonian graphs and magnetic Laplacian matrices. Zbl 1487.05157 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 2 2022 Locality of the heat kernel on metric measure spaces. Zbl 1466.35238 Post, Olaf; Rückriemen, Ralf 1 2018 Mini-workshop: Boundary value problems and spectral geometry. Abstracts from the mini-workshop held January 1–7, 2012. Zbl 1349.00057 1 2012 A distance between operators acting in different Hilbert spaces and operator convergence. Zbl 07396960 Post, Olaf; Simmer, Jan 1 2020 Asymptotic behaviour of the Hodge Laplacian spectrum on graph-like manifolds. Zbl 1373.58014 Egidi, Michela; Post, Olaf 1 2017 Convergence result for thick graphs. Zbl 1238.81122 Post, Olaf 1 2011 Quantitative Sobolev extensions and the Neumann heat kernel for integral Ricci curvature conditions. Zbl 1519.58015 Post, Olaf; Olivé, Xavier Ramos; Rose, Christian 1 2023 A geometric construction of isospectral magnetic graphs. Zbl 1518.05116 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 1 2023 Graph-like spaces approximated by discrete graphs and applications. Zbl 07747387 Post, Olaf; Simmer, Jan 1 2021 Quantitative Sobolev extensions and the Neumann heat kernel for integral Ricci curvature conditions. Zbl 1519.58015 Post, Olaf; Olivé, Xavier Ramos; Rose, Christian 1 2023 A geometric construction of isospectral magnetic graphs. Zbl 1518.05116 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 1 2023 Spectral preorder and perturbations of discrete weighted graphs. Zbl 07503469 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 3 2022 Matching number, Hamiltonian graphs and magnetic Laplacian matrices. Zbl 1487.05157 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 2 2022 Wildly perturbed manifolds: norm resolvent and spectral convergence. Zbl 1469.58018 Anné, Colette; Post, Olaf 13 2021 A geometric approximation of \(\delta\)-interactions by Neumann Laplacians. Zbl 1523.47028 Khrabustovskyi, Andrii; Post, Olaf 3 2021 Graph-like spaces approximated by discrete graphs and applications. Zbl 07747387 Post, Olaf; Simmer, Jan 1 2021 A distance between operators acting in different Hilbert spaces and operator convergence. Zbl 07396960 Post, Olaf; Simmer, Jan 1 2020 Quasi-unitary equivalence and generalised norm resolvent convergence. Zbl 1438.47028 Post, Olaf; Simmer, Jan 8 2019 Approximations of metric graphs by thick graphs and their Laplacians. Zbl 1423.41053 Post, Olaf 2 2019 Operator estimates for the crushed ice problem. Zbl 1415.35024 Khrabustovskyi, Andrii; Post, Olaf 13 2018 Spectral gaps and discrete magnetic Laplacians. Zbl 1385.05047 Fabila-Carrasco, John Stewart; Lledó, Fernando; Post, Olaf 8 2018 Approximation of fractals by discrete graphs: norm resolvent and spectral convergence. Zbl 1459.28008 Post, Olaf; Simmer, Jan 7 2018 Locality of the heat kernel on metric measure spaces. Zbl 1466.35238 Post, Olaf; Rückriemen, Ralf 1 2018 Asymptotic behaviour of the Hodge Laplacian spectrum on graph-like manifolds. Zbl 1373.58014 Egidi, Michela; Post, Olaf 1 2017 Boundary pairs associated with quadratic forms. Zbl 1380.47001 Post, Olaf 23 2016 Frustration index and Cheeger inequalities for discrete and continuous magnetic Laplacians. Zbl 1330.05103 Lange, Carsten; Liu, Shiping; Peyerimhoff, Norbert; Post, Olaf 18 2015 On open scattering channels for manifolds with ends. Zbl 1298.35129 Hempel, Rainer; Post, Olaf; Weder, Ricardo 8 2014 A general approximation of quantum graph vertex couplings by scaled Schrödinger operators on thin branched manifolds. Zbl 1270.81099 Exner, Pavel; Post, Olaf 20 2013 Path integrals and the essential self-adjointness of differential operators on noncompact manifolds. Zbl 1279.47039 Güneysu, Batu; Post, Olaf 19 2013 Norm convergence of sectorial operators on varying Hilbert spaces. Zbl 1305.47015 Mugnolo, Delio; Nittka, Robin; Post, Olaf 12 2013 Spectral analysis on graph-like spaces. Zbl 1247.58001 Post, Olaf 123 2012 Mini-workshop: Boundary value problems and spectral geometry. Abstracts from the mini-workshop held January 1–7, 2012. Zbl 1349.00057 1 2012 Convergence result for thick graphs. Zbl 1238.81122 Post, Olaf 1 2011 Approximation of quantum graph vertex couplings by scaled Schrödinger operators on thin branched manifolds. Zbl 1179.81080 Exner, Pavel; Post, Olaf 20 2009 First order approach and index theorems for discrete and metric graphs. Zbl 1206.81044 Post, Olaf 14 2009 Anderson localization for radial tree-like random quantum graphs. Zbl 1267.81165 Hislop, Peter D.; Post, Olaf 14 2009 Continuity of the integrated density of states on random length metric graphs. Zbl 1179.35333 Lenz, Daniel; Peyerimhoff, Norbert; Post, Olaf; Veselić, Ivan 12 2009 Spectral analysis of metric graphs and related spaces. Zbl 1219.05089 Post, Olaf 10 2009 Gaps in the differential forms spectrum on cyclic coverings. Zbl 1166.58013 Anné, Colette; Carron, Gilles; Post, Olaf 5 2009 Eigenvalue bracketing for discrete and metric graphs. Zbl 1152.05044 Lledó, Fernando; Post, Olaf 19 2008 Existence of spectral gaps, covering manifolds and residually finite groups. Zbl 1146.58021 Lledó, Fernando; Post, Olaf 13 2008 Equilateral quantum graphs and boundary triples. Zbl 1153.81499 Post, Olaf 12 2008 Continuity properties of the integrated density of states on manifolds. Zbl 1202.35071 Lenz, Daniel; Peyerimhoff, Norbert; Post, Olaf; Veselić, Ivan 9 2008 Quantum networks modelled by graphs. Zbl 1180.81028 Exner, Pavel; Post, Olaf 6 2008 On the spectra of carbon nano-structures. Zbl 1145.81032 Kuchment, Peter; Post, Olaf 88 2007 First-order operators and boundary triples. Zbl 1181.35040 Post, O. 6 2007 Convergence of resonances on thin branched quantum waveguides. Zbl 1152.81426 Exner, Pavel; Post, Olaf 5 2007 Generating spectral gaps by geometry. Zbl 1129.81032 Lledó, Fernando; Post, Olaf 4 2007 Spectral convergence of quasi-one-dimensional spaces. Zbl 1187.81124 Post, Olaf 40 2006 Convergence of spectra of graph-like thin manifolds. Zbl 1095.58007 Exner, Pavel; Post, Olaf 56 2005 Branched quantum wave guides with Dirichlet boundary conditions: the decoupling case. Zbl 1072.81019 Post, Olaf 19 2005 Spectral gaps for periodic elliptic operators with high contrast: an overview. Zbl 1061.35060 Hempel, Rainer; Post, Olaf 21 2003 Periodic manifolds with spectral gaps. Zbl 1028.58029 Post, Olaf 18 2003 Eigenvalues in spectral gaps of a perturbed periodic manifold. Zbl 1064.35123 Post, Olaf 4 2003 Periodic manifolds, spectral gaps, and eigenvalues in gaps. Zbl 1008.58023 Post, Olaf 4 2001 all cited Publications top 5 cited Publications all top 5 Cited by 422 Authors 28 Post, Olaf 23 Nazarov, Sergeĭ Aleksandrovich 16 Behrndt, Jussi 16 Exner, Pavel 13 Korotyaev, Evgeny L. 13 Saburova, Natalia 12 Khrabustovskyi, Andrii 12 Kurasov, Pavel B. 12 Pankrashkin, Konstantin 10 Borisov, Denis Ivanovich 10 Lledó, Fernando 10 Niikuni, Hiroaki 8 Güneysu, Batu 8 Rabinovich, Vladimir Samuilovich 8 Rohleder, Jonathan 8 Veselić, Ivan 7 Milatovic, Ognjen 6 Bakharev, Fedor L’vovich 6 Berkolaiko, Gregory 6 Kostenko, Aleksey S. 6 Malamud, Mark M. 6 Mugnolo, Delio 6 Weinstein, Michael I. 5 Albeverio, Sergio A. 5 Dovetta, Simone 5 Hinz, Michael 5 Keller, Matthias 5 Liu, Shiping 5 Muminov, Zahriddin Ishkobilovich 5 Nicolussi, Noema 5 Peyerimhoff, Norbert 4 Cacciapuoti, Claudio 4 Cardone, Giuseppe 4 Carlone, Raffaele 4 Drouot, Alexis 4 Fabila-Carrasco, John Stewart 4 Fefferman, Charles Louis 4 Fillman, Jake 4 Kuchment, Peter A. 4 Lenz, Daniel H. 4 Lipovský, Jiří 4 Lu, Zhiqin 4 Neidhardt, Hagen 4 Pelinovsky, Dmitry Efimovich 4 Pérez-Pardo, Juan Manuel 4 Sabri, Mostafa 4 Serra, Enrico 4 Sukhtaiev, Selim 4 Taskinen, Jari 4 Tentarelli, Lorenzo 4 Teplyaev, Alexander 4 Tilli, Paolo 4 Turek, Ondřej 3 Adami, Riccardo 3 Anné, Colette 3 Barseghyan, Diana 3 Borrelli, William 3 Brown, B. Malcolm 3 Charalambous, Nelia 3 Cherednichenko, Kirill D. 3 Damanik, David 3 Han, Rui 3 Helffer, Bernard 3 Ibort, Alberto 3 Karabash, Illya M. 3 Kiselev, Alexander V. 3 Kordyukov, Yuri A. 3 Lakaev, Shukhrat Saidakhmatovich 3 Lotoreichik, Vladimir 3 Matveenko, Sergeĭ G. 3 Mel’nyk, Taras A. 3 Orive Illera, Rafael 3 Schneider, Baruch 3 Schneider, Guido 3 Shipman, Stephen P. 3 Simmer, Jan 3 ter Elst, Antonius Frederik Maria 3 Truc, Françoise 3 Usman, Muhammad 2 Alladustov, Shukhrat U. 2 Anantharaman, Nalini 2 Ando, Kazunori 2 Band, Ram 2 Baradaran, Marzieh 2 Barrera-Figueroa, Victor 2 Becker, Simon 2 Ben Amor, Ali 2 Bianconi, Ginestra 2 Bondarenko, Natalia P. 2 Carron, Gilles 2 Chernyshev, Vsevolod L. 2 Colbois, Bruno 2 Conca, Carlos 2 de Oliveira, César R. 2 Dell’Antonio, Gian Fausto 2 Duca, Alessandro 2 Ershova, Yulia Yu. 2 Eshimbetov, Mardonbek R. 2 Farsi, Carla 2 Gesztesy, Fritz ...and 322 more Authors all top 5 Cited in 136 Serials 20 Journal of Functional Analysis 19 Journal of Physics A: Mathematical and Theoretical 18 Journal of Mathematical Physics 18 Annales Henri Poincaré 17 Journal of Mathematical Analysis and Applications 16 Journal of Differential Equations 13 Communications in Mathematical Physics 12 Integral Equations and Operator Theory 11 Letters in Mathematical Physics 11 Journal of Spectral Theory 9 Mathematische Nachrichten 7 Linear Algebra and its Applications 7 Analysis and Mathematical Physics 6 Reports on Mathematical Physics 6 Advances in Mathematics 6 Mathematische Annalen 6 Proceedings of the American Mathematical Society 6 The Journal of Geometric Analysis 6 Journal of Mathematical Sciences (New York) 5 Reviews in Mathematical Physics 5 Annales de l’Institut Fourier 5 Transactions of the American Mathematical Society 5 SIAM Journal on Mathematical Analysis 5 Potential Analysis 5 Calculus of Variations and Partial Differential Equations 5 Russian Journal of Mathematical Physics 5 St. Petersburg Mathematical Journal 4 Mathematical Notes 4 Symmetry 3 Applicable Analysis 3 Israel Journal of Mathematics 3 Physics Letters. A 3 Journal of Geometry and Physics 3 Asymptotic Analysis 3 Journal de Mathématiques Pures et Appliquées. Neuvième Série 3 Discrete and Continuous Dynamical Systems 3 Doklady Mathematics 3 Communications on Pure and Applied Analysis 3 Waves in Random and Complex Media 3 Operators and Matrices 2 Inverse Problems 2 Journal d’Analyse Mathématique 2 Journal of Statistical Physics 2 Mathematical Methods in the Applied Sciences 2 Nonlinearity 2 Functional Analysis and its Applications 2 Inventiones Mathematicae 2 Journal of Computational and Applied Mathematics 2 Mathematische Zeitschrift 2 Probability Theory and Related Fields 2 SIAM Journal on Applied Mathematics 2 Computational and Applied Mathematics 2 Opuscula Mathematica 2 Izvestiya: Mathematics 2 Journal of Mathematical Chemistry 2 Mathematical Physics, Analysis and Geometry 2 Lobachevskii Journal of Mathematics 2 Journal of Evolution Equations 2 Mediterranean Journal of Mathematics 2 Oberwolfach Reports 2 Complex Variables and Elliptic Equations 2 Proceedings of the Steklov Institute of Mathematics 2 Ufimskiĭ Matematicheskiĭ Zhurnal 2 Bulletin of Mathematical Sciences 1 Archive for Rational Mechanics and Analysis 1 Communications on Pure and Applied Mathematics 1 Linear and Multilinear Algebra 1 Rocky Mountain Journal of Mathematics 1 Studia Mathematica 1 Zhurnal Vychislitel’noĭ Matematiki i Matematicheskoĭ Fiziki 1 Annali di Matematica Pura ed Applicata. Serie Quarta 1 The Annals of Probability 1 Applied Mathematics and Computation 1 Archiv der Mathematik 1 Automatica 1 Bulletin of the London Mathematical Society 1 Funkcialaj Ekvacioj. Serio Internacia 1 Geometriae Dedicata 1 Journal of Approximation Theory 1 Journal of the London Mathematical Society. Second Series 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 Results in Mathematics 1 Siberian Mathematical Journal 1 Studies in Applied Mathematics 1 Tokyo Journal of Mathematics 1 Transactions of the Moscow Mathematical Society 1 Rendiconti di Matematica e delle sue Applicazioni. Serie VII 1 Stochastic Analysis and Applications 1 Annals of Global Analysis and Geometry 1 Applied Numerical Mathematics 1 Applied Mathematics Letters 1 Journal of the American Mathematical Society 1 SIAM Journal on Discrete Mathematics 1 Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Serie IX. Rendiconti Lincei. Matematica e Applicazioni 1 Differential Geometry and its Applications 1 Geometric and Functional Analysis. GAFA 1 Communications in Partial Differential Equations 1 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 1 Bulletin of the American Mathematical Society. New Series 1 Proceedings of the Indian Academy of Sciences. Mathematical Sciences ...and 36 more Serials all top 5 Cited in 49 Fields 239 Partial differential equations (35-XX) 179 Quantum theory (81-XX) 164 Operator theory (47-XX) 84 Ordinary differential equations (34-XX) 77 Combinatorics (05-XX) 75 Global analysis, analysis on manifolds (58-XX) 43 Statistical mechanics, structure of matter (82-XX) 23 Differential geometry (53-XX) 18 Difference and functional equations (39-XX) 15 Calculus of variations and optimal control; optimization (49-XX) 13 Functional analysis (46-XX) 13 Probability theory and stochastic processes (60-XX) 13 Optics, electromagnetic theory (78-XX) 10 Measure and integration (28-XX) 10 Mechanics of deformable solids (74-XX) 9 Potential theory (31-XX) 9 Numerical analysis (65-XX) 8 Dynamical systems and ergodic theory (37-XX) 5 Approximations and expansions (41-XX) 5 Manifolds and cell complexes (57-XX) 5 Fluid mechanics (76-XX) 4 Linear and multilinear algebra; matrix theory (15-XX) 4 Real functions (26-XX) 4 Mechanics of particles and systems (70-XX) 4 Operations research, mathematical programming (90-XX) 3 Group theory and generalizations (20-XX) 3 Biology and other natural sciences (92-XX) 2 General and overarching topics; collections (00-XX) 2 Number theory (11-XX) 2 Harmonic analysis on Euclidean spaces (42-XX) 2 Abstract harmonic analysis (43-XX) 2 Geometry (51-XX) 2 Relativity and gravitational theory (83-XX) 2 Systems theory; control (93-XX) 1 History and biography (01-XX) 1 Order, lattices, ordered algebraic structures (06-XX) 1 Algebraic geometry (14-XX) 1 Nonassociative rings and algebras (17-XX) 1 Topological groups, Lie groups (22-XX) 1 Functions of a complex variable (30-XX) 1 Sequences, series, summability (40-XX) 1 Integral transforms, operational calculus (44-XX) 1 Integral equations (45-XX) 1 Convex and discrete geometry (52-XX) 1 Algebraic topology (55-XX) 1 Statistics (62-XX) 1 Computer science (68-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Information and communication theory, circuits (94-XX) Citations by Year