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## Schaeffer, Jack W.

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 Author ID: schaeffer.jack-w Published as: Schaeffer, Jack; Schaeffer, J.; Schäeffer, J.; Schaeffer, Jack W.; Schaeffer, J. W. External Links: ORCID
 Documents Indexed: 63 Publications since 1985
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#### Co-Authors

 26 single-authored 22 Glassey, Robert T. 7 Pankavich, Stephen 4 AlAli, Mashhour I. M. 4 Hering, Christoph H. 2 Fonseca, Irene 2 Shvartsman, Mikhail M. 1 Botea, Adi 1 Enzenberger, M. 1 French, Donald A. 1 Horst, Ernst 1 Hwang, Hyung Ju 1 Lenard, Andrew 1 Lister, Lisa 1 Owen, David R. 1 Rein, Gerhard 1 Rendall, Alan D. 1 Wang, Keming 1 Wu, Lei 1 Zheng, Yuxi
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#### Serials

 8 Mathematical Methods in the Applied Sciences 7 Communications in Mathematical Physics 7 Quarterly of Applied Mathematics 4 Communications in Partial Differential Equations 3 Archive for Rational Mechanics and Analysis 3 SIAM Journal on Numerical Analysis 3 SIAM Journal on Mathematical Analysis 3 Communications in Mathematical Sciences 3 Kinetic and Related Models 2 Transport Theory and Statistical Physics 2 Journal of Differential Equations 2 Differential and Integral Equations 1 Computers & Mathematics with Applications 1 Journal of Mathematical Analysis and Applications 1 Mathematics of Computation 1 Applied Mathematics and Computation 1 Indiana University Mathematics Journal 1 Portugaliae Mathematica 1 Rivista di Matemàtica Pura ed Applicata 1 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 1 Bulletin Mathématique de la Société des Sciences Mathématiques de Roumanie. Nouvelle Série 1 The Journal of Artificial Intelligence Research (JAIR) 1 Italian Journal of Pure and Applied Mathematics 1 Acta Mathematica Sinica. English Series
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#### Fields

 52 Partial differential equations (35-XX) 38 Statistical mechanics, structure of matter (82-XX) 9 Fluid mechanics (76-XX) 8 Numerical analysis (65-XX) 5 Astronomy and astrophysics (85-XX) 4 Group theory and generalizations (20-XX) 4 Relativity and gravitational theory (83-XX) 2 Ordinary differential equations (34-XX) 2 Integral equations (45-XX) 2 Computer science (68-XX) 2 Mechanics of deformable solids (74-XX) 2 Optics, electromagnetic theory (78-XX) 2 Geophysics (86-XX) 1 Quantum theory (81-XX)

#### Citations contained in zbMATH Open

45 Publications have been cited 738 times in 435 Documents Cited by Year
Global existence of smooth solutions to the Vlasov-Poisson system in three dimensions. Zbl 0746.35050
Schaeffer, Jack
1991
The equation $$u_{tt}-\Delta u=| u| ^ p$$ for the critical value of p. Zbl 0592.35080
Schaeffer, Jack
1985
The “Two and one-half dimensional” relativistic Vlasov Maxwell system. Zbl 0883.35118
Glassey, Robert; Schaeffer, Jack
1997
Global existence for the relativistic Vlasov-Maxwell system with nearly neutral initial data. Zbl 0673.35070
Glassey, R. T.; Schaeffer, J. W.
1988
The relativistic Vlasov-Maxwell system in two space dimensions: I. II. Zbl 0907.76100
Glassey, Robert T.; Schaeffer, Jack
1998
On symmetric solutions of the relativistic Vlasov-Poisson system. Zbl 0582.35110
Glassey, Robert T.; Schaeffer, Jack
1985
On the “one and one-half dimensional” relativistic Vlasov-Maxwell system. Zbl 0722.35053
Glassey, Robert; Schaeffer, Jack
1990
The classical limit of the relativistic Vlasov-Maxwell system. Zbl 0597.35109
Schaeffer, Jack
1986
Continuous finite element methods which preserve energy properties for nonlinear problems. Zbl 0716.65084
French, Donald A.; Schaeffer, Jack W.
1990
Time decay for solutions to the linearized Vlasov equation. Zbl 0819.35114
Glassey, Robert; Schaeffer, Jack
1994
The Vlasov Poisson system with steady spatial asymptotics. Zbl 1103.82314
Schaeffer, Jack
2003
Global existence for the Poisson-Vlasov system with nearly symmetric data. Zbl 0642.35058
Schaeffer, Jack
1987
A regularity theorem for solutions of the spherically symmetric Vlasov- Einstein system. Zbl 0830.35141
Rein, Gerhard; Rendall, Alan D.; Schaeffer, Jack
1995
Steady spatial asymptotics for the Vlasov-Poisson system. Zbl 1030.35116
Schaeffer, Jack
2003
Steady states in galactic dynamics. Zbl 1061.85001
Schaeffer, Jack
2004
On time decay rates in Landau damping. Zbl 0816.35110
Glassey, Robert; Schaeffer, Jack
1995
Finite-time blow-up for $$u_{tt}-\Delta u=H(u_ r,u_ t)$$ in two space dimensions. Zbl 0592.35088
Schaeffer, Jack
1986
Global existence for the Vlasov-Poisson system with steady spatial asymptotic behavior. Zbl 1250.35166
Schaeffer, Jack
2012
A small data theorem for collisionless plasma that includes high velocity particles. Zbl 1059.35152
Schaeffer, Jack
2004
Convergence of a difference scheme for the Vlasov-Poisson-Fokker-Planck system in one dimension. Zbl 0911.65137
Schaeffer, Jack
1998
A class of counterexamples to Jeans’ theorem for the Vlasov-Einstein system. Zbl 0956.83026
Schaeffer, Jack
1999
Asymptotic growth bounds for the Vlasov-Poisson system. Zbl 1208.82035
Schaeffer, Jack
2011
Steady states of the Vlasov-Poisson-Fokker-Planck system. Zbl 0867.35026
Glassey, Robert; Schaeffer, Jack; Zheng, Yuxi
1996
Macro-FF: improving AI planning with automatically learned macro-operators. Zbl 1080.68657
Botea, A.; Enzenberger, M.; Müller, M.; Schaeffer, J.
2005
On global symmetric solutions to the relativistic Vlasov-Poisson equation in three space dimensions. Zbl 0973.35186
Glassey, Robert T.; Schaeffer, Jack
2001
Convergence of a second-order scheme for semilinear hyperbolic equations in $$2+1$$ dimensions. Zbl 0714.65081
Glassey, Robert; Schaeffer, Jack
1991
Convergence of a particle method for the relativistic Vlasov-Maxwell system. Zbl 0725.65124
Glassey, Robert; Schaeffer, Jack
1991
Discrete approximation of the Poisson-Vlasov system. Zbl 0646.65097
Schaeffer, Jack
1987
Global classical solutions of the “one and one-half” dimensional Vlasov-Maxwell-Fokker-Planck system. Zbl 1332.35214
Pankavich, Stephen; Schaeffer, Jack
2015
Steady states for a one-dimensional model of the solar wind. Zbl 1035.82042
Schaeffer, Jack
2001
On long-time behavior of monocharged and neutral plasma in one and one-half dimensions. Zbl 1189.35026
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2009
Large time behavior of the relativistic Vlasov Maxwell system in low space dimension. Zbl 1240.35549
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2010
Control of velocities generated in a two-dimensional collisionless plasma with symmetry. Zbl 0681.35082
Glassey, Robert; Schaeffer, Jack
1988
Steady states of the Vlasov-Maxwell system. Zbl 1087.35091
Schaeffer, Jack
2005
Higher order time splitting for the linear Vlasov equation. Zbl 1191.65121
Schaeffer, Jack
2009
Decay in time for a one-dimensional two-component plasma. Zbl 1158.35429
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2008
Large-time behavior of a one-dimensional monocharged plasma. Zbl 1212.35019
Schaeffer, Jack
2007
Uniqueness for weak solutions of a one-dimensional boundary value problem for the Vlasov-Poisson system. Zbl 1143.35086
Hwang, Hyung Ju; Schaeffer, Jack
2008
The relativistic Vlasov-Maxwell system in 2D and 2. 5D. Zbl 0973.35129
Glassey, Robert T.; Schaeffer, Jack
2000
Slow decay for a linearized model of the solar wind. Zbl 1235.35043
Schaeffer, Jack
2012
A restriction on shocks in collisionless plasma. Zbl 1310.35222
Schaeffer, Jack
2014
An analysis of the conspiracy numbers algorithm. Zbl 0805.68109
Lister, L.; Schaeffer, J.
1994
Separated characteristics and global solvability for the one and one-half dimensional Vlasov Maxwell system. Zbl 1360.35281
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2016
The nonrelativistic limit of relativistic Vlasov-Maxwell system. Zbl 1378.35301
Schaeffer, Jack; Wu, Lei
2017
Global solution of the Cauchy problem for the relativistic Vlasov-Poisson equation with cylindrically symmetric data. Zbl 1145.35424
Glassey, Robert T.; Schaeffer, Jack
2004
The nonrelativistic limit of relativistic Vlasov-Maxwell system. Zbl 1378.35301
Schaeffer, Jack; Wu, Lei
2017
Separated characteristics and global solvability for the one and one-half dimensional Vlasov Maxwell system. Zbl 1360.35281
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2016
Global classical solutions of the “one and one-half” dimensional Vlasov-Maxwell-Fokker-Planck system. Zbl 1332.35214
Pankavich, Stephen; Schaeffer, Jack
2015
A restriction on shocks in collisionless plasma. Zbl 1310.35222
Schaeffer, Jack
2014
Global existence for the Vlasov-Poisson system with steady spatial asymptotic behavior. Zbl 1250.35166
Schaeffer, Jack
2012
Slow decay for a linearized model of the solar wind. Zbl 1235.35043
Schaeffer, Jack
2012
Asymptotic growth bounds for the Vlasov-Poisson system. Zbl 1208.82035
Schaeffer, Jack
2011
Large time behavior of the relativistic Vlasov Maxwell system in low space dimension. Zbl 1240.35549
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2010
On long-time behavior of monocharged and neutral plasma in one and one-half dimensions. Zbl 1189.35026
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2009
Higher order time splitting for the linear Vlasov equation. Zbl 1191.65121
Schaeffer, Jack
2009
Decay in time for a one-dimensional two-component plasma. Zbl 1158.35429
Glassey, Robert; Pankavich, Stephen; Schaeffer, Jack
2008
Uniqueness for weak solutions of a one-dimensional boundary value problem for the Vlasov-Poisson system. Zbl 1143.35086
Hwang, Hyung Ju; Schaeffer, Jack
2008
Large-time behavior of a one-dimensional monocharged plasma. Zbl 1212.35019
Schaeffer, Jack
2007
Macro-FF: improving AI planning with automatically learned macro-operators. Zbl 1080.68657
Botea, A.; Enzenberger, M.; Müller, M.; Schaeffer, J.
2005
Steady states of the Vlasov-Maxwell system. Zbl 1087.35091
Schaeffer, Jack
2005
Steady states in galactic dynamics. Zbl 1061.85001
Schaeffer, Jack
2004
A small data theorem for collisionless plasma that includes high velocity particles. Zbl 1059.35152
Schaeffer, Jack
2004
Global solution of the Cauchy problem for the relativistic Vlasov-Poisson equation with cylindrically symmetric data. Zbl 1145.35424
Glassey, Robert T.; Schaeffer, Jack
2004
The Vlasov Poisson system with steady spatial asymptotics. Zbl 1103.82314
Schaeffer, Jack
2003
Steady spatial asymptotics for the Vlasov-Poisson system. Zbl 1030.35116
Schaeffer, Jack
2003
On global symmetric solutions to the relativistic Vlasov-Poisson equation in three space dimensions. Zbl 0973.35186
Glassey, Robert T.; Schaeffer, Jack
2001
Steady states for a one-dimensional model of the solar wind. Zbl 1035.82042
Schaeffer, Jack
2001
The relativistic Vlasov-Maxwell system in 2D and 2. 5D. Zbl 0973.35129
Glassey, Robert T.; Schaeffer, Jack
2000
A class of counterexamples to Jeans’ theorem for the Vlasov-Einstein system. Zbl 0956.83026
Schaeffer, Jack
1999
The relativistic Vlasov-Maxwell system in two space dimensions: I. II. Zbl 0907.76100
Glassey, Robert T.; Schaeffer, Jack
1998
Convergence of a difference scheme for the Vlasov-Poisson-Fokker-Planck system in one dimension. Zbl 0911.65137
Schaeffer, Jack
1998
The “Two and one-half dimensional” relativistic Vlasov Maxwell system. Zbl 0883.35118
Glassey, Robert; Schaeffer, Jack
1997
Steady states of the Vlasov-Poisson-Fokker-Planck system. Zbl 0867.35026
Glassey, Robert; Schaeffer, Jack; Zheng, Yuxi
1996
A regularity theorem for solutions of the spherically symmetric Vlasov- Einstein system. Zbl 0830.35141
Rein, Gerhard; Rendall, Alan D.; Schaeffer, Jack
1995
On time decay rates in Landau damping. Zbl 0816.35110
Glassey, Robert; Schaeffer, Jack
1995
Time decay for solutions to the linearized Vlasov equation. Zbl 0819.35114
Glassey, Robert; Schaeffer, Jack
1994
An analysis of the conspiracy numbers algorithm. Zbl 0805.68109
Lister, L.; Schaeffer, J.
1994
Global existence of smooth solutions to the Vlasov-Poisson system in three dimensions. Zbl 0746.35050
Schaeffer, Jack
1991
Convergence of a second-order scheme for semilinear hyperbolic equations in $$2+1$$ dimensions. Zbl 0714.65081
Glassey, Robert; Schaeffer, Jack
1991
Convergence of a particle method for the relativistic Vlasov-Maxwell system. Zbl 0725.65124
Glassey, Robert; Schaeffer, Jack
1991
On the “one and one-half dimensional” relativistic Vlasov-Maxwell system. Zbl 0722.35053
Glassey, Robert; Schaeffer, Jack
1990
Continuous finite element methods which preserve energy properties for nonlinear problems. Zbl 0716.65084
French, Donald A.; Schaeffer, Jack W.
1990
Global existence for the relativistic Vlasov-Maxwell system with nearly neutral initial data. Zbl 0673.35070
Glassey, R. T.; Schaeffer, J. W.
1988
Control of velocities generated in a two-dimensional collisionless plasma with symmetry. Zbl 0681.35082
Glassey, Robert; Schaeffer, Jack
1988
Global existence for the Poisson-Vlasov system with nearly symmetric data. Zbl 0642.35058
Schaeffer, Jack
1987
Discrete approximation of the Poisson-Vlasov system. Zbl 0646.65097
Schaeffer, Jack
1987
The classical limit of the relativistic Vlasov-Maxwell system. Zbl 0597.35109
Schaeffer, Jack
1986
Finite-time blow-up for $$u_{tt}-\Delta u=H(u_ r,u_ t)$$ in two space dimensions. Zbl 0592.35088
Schaeffer, Jack
1986
The equation $$u_{tt}-\Delta u=| u| ^ p$$ for the critical value of p. Zbl 0592.35080
Schaeffer, Jack
1985
On symmetric solutions of the relativistic Vlasov-Poisson system. Zbl 0582.35110
Glassey, Robert T.; Schaeffer, Jack
1985
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#### Cited by 397 Authors

 24 Rein, Gerhard 22 Zhang, Xianwen 19 Schaeffer, Jack W. 11 Andréasson, Håkan 11 Rendall, Alan D. 11 Takamura, Hiroyuki 10 Marchioro, Carlo 10 Pankavich, Stephen 9 Glassey, Robert T. 8 Caprino, Silvia 8 Chen, Zili 8 Lemou, Mohammed 7 Calogero, Simone 7 Dolbeault, Jean 7 Guo, Yan 7 Palmieri, Alessandro 7 Zhou, Yi 6 Bedrossian, Jacob 6 Cavallaro, Guido 6 French, Donald A. 6 Lai, Ning-An 5 Bostan, Mihai 5 Han-Kwan, Daniel 5 Hidano, Kunio 5 Hwang, Hyung Ju 5 Kunze, Markus 5 Lee, Ho 5 Méhats, Florian 5 Raphael, Pierre 5 Wakasa, Kyouhei 5 Wollman, Stephen 5 Xiao, Meixia 4 Bauer, Sebastian 4 Christlieb, Andrew J. 4 D’Abbicco, Marcello 4 Han, Wei 4 Jabin, Pierre-Emmanuel 4 Jleli, Mohamed 4 Kiessling, Michael Karl-Heinz 4 Kubo, Hideo 4 Li, Xiuting 4 Luk, Jonathan 4 Masmoudi, Nader 4 Mauser, Norbert Julius 4 Miot, Evelyne 4 Pallard, Christophe 4 Perthame, Benoît 4 Pickl, Peter 4 Pulvirenti, Mario 4 Samet, Bessem 4 Strauss, Walter Alexander 4 Tsutaya, Kimitoshi 4 Velázquez, Juan J. L. 4 Wang, Chengbo 4 Weber, Jörg 4 Young, Brent 4 Zhou, Zhengfang 3 Asadzadeh, Mohammad Sina 3 Batt, Jürgen 3 Belyaeva, Yu. O. 3 Ben-Artzi, Jonathan 3 Bigorgne, Léo 3 Chen, Wenhui 3 Cheverry, Christophe 3 He, Daoyin 3 Iacobelli, Mikaela 3 Lin, Zhiwu 3 Mouhot, Clément 3 Nguyen, Toan Trong 3 Ozizmir, Ercument 3 Sánchez, Oscar 3 Soler, Juan S. 3 Standar, Christoffer 3 Wei, Jinbo 3 Witt, Ingo 3 Yin, Huicheng 3 Zhan, Mei-Qin 3 Zheng, Yuxi 2 Agemi, Rentaro 2 Aki, Gonca L. 2 Bechouche, Philippe 2 Belchev, Eugene 2 Besse, Nicolas 2 Betsch, Peter 2 Campos Pinto, Martin 2 Carrillo de la Plata, José Antonio 2 Crippa, Gianluca 2 Degond, Pierre 2 Deng, Keng 2 Ebert, Marcelo Rempel 2 Elskens, Yves 2 Fajman, David 2 Filbet, Francis 2 Fiřt, Roman 2 Fontaine, Adrien 2 Galakhov, Evgeniĭ Igorevich 2 Germain, Pierre 2 Godin, Paul 2 Griffin-Pickering, Megan 2 Gross, Michael B. ...and 297 more Authors
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#### Cited in 109 Serials

 37 Communications in Mathematical Physics 35 Journal of Differential Equations 26 Communications in Partial Differential Equations 19 Archive for Rational Mechanics and Analysis 17 Kinetic and Related Models 15 Journal of Mathematical Analysis and Applications 14 Journal of Mathematical Physics 14 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 12 Mathematical Methods in the Applied Sciences 11 Journal of Computational Physics 11 Journal of Statistical Physics 9 SIAM Journal on Mathematical Analysis 8 Transport Theory and Statistical Physics 8 Annales de l’Institut Henri Poincaré. Analyse Non Linéaire 7 Quarterly of Applied Mathematics 6 Applied Mathematics Letters 6 M$$^3$$AS. Mathematical Models & Methods in Applied Sciences 6 Annales Henri Poincaré 5 Computer Methods in Applied Mechanics and Engineering 5 Journal of Computational and Applied Mathematics 5 Journal of Functional Analysis 5 Journal of Hyperbolic Differential Equations 5 Nonlinear Analysis. Theory, Methods & Applications 5 Annals of PDE 4 Chinese Annals of Mathematics. Series B 4 Acta Applicandae Mathematicae 4 Physica D 4 Applied Numerical Mathematics 4 Living Reviews in Relativity 3 Mathematical Proceedings of the Cambridge Philosophical Society 3 ZAMP. Zeitschrift für angewandte Mathematik und Physik 3 Applied Mathematics and Computation 3 Inventiones Mathematicae 3 Manuscripta Mathematica 3 Mathematische Annalen 3 Numerische Mathematik 3 SIAM Journal on Numerical Analysis 3 Transactions of the American Mathematical Society 3 Bulletin of the Korean Mathematical Society 3 Journal de Mathématiques Pures et Appliquées. Neuvième Série 3 Calculus of Variations and Partial Differential Equations 3 Doklady Mathematics 3 Comptes Rendus. Mathématique. Académie des Sciences, Paris 3 Communications on Pure and Applied Analysis 2 Applicable Analysis 2 Communications on Pure and Applied Mathematics 2 Mathematical Notes 2 Rocky Mountain Journal of Mathematics 2 Mathematics of Computation 2 Annali di Matematica Pura ed Applicata. Serie Quarta 2 RAIRO. Modélisation Mathématique et Analyse Numérique 2 Revista Matemática Iberoamericana 2 Bulletin of the American Mathematical Society. New Series 2 Journal of Mathematical Sciences (New York) 2 NoDEA. Nonlinear Differential Equations and Applications 2 Discrete and Continuous Dynamical Systems 2 European Series in Applied and Industrial Mathematics (ESAIM): Mathematical Modelling and Numerical Analysis 2 Analysis & PDE 1 Computers & Mathematics with Applications 1 Ukrainian Mathematical Journal 1 Acta Mathematica 1 Acta Mathematica Vietnamica 1 Annali della Scuola Normale Superiore di Pisa. Classe di Scienze. Serie IV 1 Applied Mathematics and Optimization 1 Archiv der Mathematik 1 BIT 1 Calcolo 1 Illinois Journal of Mathematics 1 Publications Mathématiques 1 International Journal for Numerical Methods in Engineering 1 Mathematics and Computers in Simulation 1 Mathematische Zeitschrift 1 Memoirs of the American Mathematical Society 1 Proceedings of the Japan Academy. Series A 1 Rendiconti del Seminario Matematico della Università di Padova 1 Applied Mathematics and Mechanics. (English Edition) 1 Numerical Methods for Partial Differential Equations 1 Journal of the American Mathematical Society 1 Mathematical and Computer Modelling 1 Journal of Scientific Computing 1 Science in China. Series A 1 Computational Mathematics and Mathematical Physics 1 Applied Mathematical Modelling 1 Journal of Nonlinear Science 1 Continuum Mechanics and Thermodynamics 1 Annales de la Faculté des Sciences de Toulouse. Mathématiques. Série VI 1 SIAM Journal on Scientific Computing 1 Communications in Numerical Methods in Engineering 1 Advances in Computational Mathematics 1 Journal of Difference Equations and Applications 1 The Journal of Fourier Analysis and Applications 1 European Series in Applied and Industrial Mathematics (ESAIM): Control, Optimization and Calculus of Variations 1 Journal of Inequalities and Applications 1 Journal of Interdisciplinary Mathematics 1 Analysis (München) 1 Acta Mathematica Sinica. English Series 1 Communications in Nonlinear Science and Numerical Simulation 1 Differential Equations 1 Nonlinear Analysis. Real World Applications 1 Acta Mathematica Scientia. Series B. (English Edition) ...and 9 more Serials
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#### Cited in 34 Fields

 374 Partial differential equations (35-XX) 161 Statistical mechanics, structure of matter (82-XX) 103 Fluid mechanics (76-XX) 53 Relativity and gravitational theory (83-XX) 47 Numerical analysis (65-XX) 31 Astronomy and astrophysics (85-XX) 27 Optics, electromagnetic theory (78-XX) 16 Quantum theory (81-XX) 13 Mechanics of deformable solids (74-XX) 9 Differential geometry (53-XX) 9 Mechanics of particles and systems (70-XX) 7 Integral equations (45-XX) 6 Ordinary differential equations (34-XX) 6 Calculus of variations and optimal control; optimization (49-XX) 5 Dynamical systems and ergodic theory (37-XX) 5 Global analysis, analysis on manifolds (58-XX) 4 Functional analysis (46-XX) 3 Operator theory (47-XX) 3 Probability theory and stochastic processes (60-XX) 3 Classical thermodynamics, heat transfer (80-XX) 3 Biology and other natural sciences (92-XX) 2 Special functions (33-XX) 2 Harmonic analysis on Euclidean spaces (42-XX) 2 Integral transforms, operational calculus (44-XX) 1 General and overarching topics; collections (00-XX) 1 Group theory and generalizations (20-XX) 1 Real functions (26-XX) 1 Measure and integration (28-XX) 1 Functions of a complex variable (30-XX) 1 Difference and functional equations (39-XX) 1 Approximations and expansions (41-XX) 1 Geophysics (86-XX) 1 Systems theory; control (93-XX) 1 Information and communication theory, circuits (94-XX)