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## Wasow, Wolfgang R.

Compute Distance To:
 Author ID: wasow.wolfgang-r Published as: Wasow, Wolfgang; Wasow, W.; Wasow, Wolfgang R.; Wasow, W. R.
 Documents Indexed: 68 Publications since 1944, including 10 Books Biographic References: 1 Publication

#### Co-Authors

 61 single-authored 2 Forsythe, George E. 1 Forsythe, E. 1 Friedrichs, Kurt Otto 1 Motzkin, Theodore Samuel 1 Redheffer, Raymond M.
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#### Serials

 4 Funkcialaj Ekvacioj. Serio Internacia 4 Annals of Mathematics. Second Series 3 Communications on Pure and Applied Mathematics 3 Duke Mathematical Journal 3 SIAM Journal on Mathematical Analysis 3 Journal of Mathematics and Physics 2 ZAMP. Zeitschrift für angewandte Mathematik und Physik 2 Results in Mathematics 2 Mathematical Tables and other Aids to Computation 1 Archive for Rational Mechanics and Analysis 1 Journal of Mathematical Analysis and Applications 1 Journal of Research of the National Bureau of Standards 1 Zeitschrift für Angewandte Mathematik und Mechanik (ZAMM) 1 Commentarii Mathematici Helvetici 1 Illinois Journal of Mathematics 1 Journal of Differential Equations 1 Le Matematiche 1 Pacific Journal of Mathematics 1 Quarterly of Applied Mathematics 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Transactions of the American Mathematical Society 1 Linear Algebra and its Applications 1 Nieuw Archief voor Wiskunde. Derde Serie 1 Proceedings of the National Academy of Sciences of the United States of America 1 Bulletin of the American Mathematical Society 1 Rendiconti Di Matematica e Delle Sue Applicazioni, V. Serie 1 Applied Mathematical Sciences 1 1 Annals of Mathematical Statistics
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#### Fields

 20 Ordinary differential equations (34-XX) 3 Mechanics of particles and systems (70-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 1 Partial differential equations (35-XX) 1 Approximations and expansions (41-XX) 1 Operator theory (47-XX) 1 Numerical analysis (65-XX) 1 Quantum theory (81-XX)

#### Citations contained in zbMATH Open

51 Publications have been cited 1,326 times in 1,166 Documents Cited by Year
Asymptotic expansions for ordinary differential equations. Zbl 0133.35301
Wasow, Wolfgang
1965
Finite-difference methods for partial differential equations. Zbl 0099.11103
Forsythe, George E.; Wasow, Wolfgang R.
1960
Asymptotic expansions for ordinary differential equations. Zbl 0169.10903
Wasow, W.
1968
Linear turning point theory. Zbl 0558.34049
Wasow, Wolfgang
1985
On the approximation of linear elliptic differential equations by difference equations with positive coefficients. Zbl 0050.12501
Motzkin, T. S.; Wasow, W.
1953
Asymptotic expansions for ordinary differential equations. Reprint (of the ed. publ. 1976 by Robert E. Krieger Publ. Co., Huntington, N.Y.). Zbl 0644.34003
Wasow, Wolfgang
1987
Adiabatic invariants and the asymptotic theory of ordinary linear differential equations. Zbl 0369.34023
Wasow, Wolfgang
1976
On small disturbances of plane Couette flow. Zbl 0053.45602
Wasow, Wolfgang
1953
Singular perturbations of non-linear oscillations. Zbl 0061.19509
Friedrichs, K. O.; Wasow, W. R.
1946
On holomorphically similar matrices. Zbl 0108.01601
Wasow, W.
1962
Singular perturbations of boundary value problems for nonlinear differential equations of the second order. Zbl 0074.30502
Wasow, Wolfgang
1956
Asymptotic solution of the differential equation of hydrodynamic stability in a domain containing a transition point. Zbl 0051.06602
Wasow, Wolfgang
1953
On the asymptotic solution of boundary value problems for ordinary differential equations containing a parameter. Zbl 0061.18202
Wasow, Wolfgang
1944
The complex asymptotic theory of a fourth order differential equation of hydrodynamics. Zbl 0031.40202
Wasow, Wolfgang
1948
Finite-difference methods for partial differential equations. Translation from the English by B.M. Budak and N.P. Zhidkov. Zbl 0108.29803
Wasow, W. R.; Forsythe, E.
1963
Asymptotic development of the solution of Dirichlet’s problem at analytic corners. Zbl 0077.09802
Wasow, Wolfgang
1957
Simplification of turning point problems for systems of linear differential equations. Zbl 0109.31003
Wasow, W.
1963
Turning point problems for systems of linear differential equations. II: The analytic theory. Zbl 0142.34403
Wasow, W.
1962
Turning point problems for systems of linear differential equations. I: The formal theory. Zbl 0106.29301
Wasow, Wolfgang
1961
A study of the solutions of the differential equation $$y^{(4)}+\lambda^2(xy''+y)=0$$ for large values of $$\lambda$$. Zbl 0038.24602
Wasow, Wolfgang
1950
Adiabatic invariance of a simple oscillator. Zbl 0252.34064
Wasow, Wolfgang
1973
Connection problems for asymptotic series. Zbl 0174.39601
Wasow, W.
1968
A note on the inversion of matrices by random walks. Zbl 0048.11303
Wasow, W. R.
1952
Asymptotic solution of boundary value problems for the differential equation $$\Delta U+\lambda\partial U/\partial x=\lambda f(x,y)$$. Zbl 0061.23708
Wasow, Wolfgang
1944
Asymptotic simplification of self-adjoint differential equations with a parameter. Zbl 0148.06503
Wasow, W.
1966
Discrete approximations to elliptic differential equations. Zbl 0064.37802
Wasow, Wolfgang
1955
A turning point problem for a system of two linear differential equations. Zbl 0091.26003
Wasow, Wolfgang
1960
Asymptotic expansions for ordinary differential equations. Trends and problems. Zbl 0136.08101
Wasow, W.
1964
On the duration of random walks. Zbl 0054.05902
Wasow, Wolfgang
1951
The accuracy of difference approximations to plane Dirichlet problems with piecewise analytic boundary values. Zbl 0077.11301
Wasow, Wolfgang R.
1957
Solution of nonlinear differential equations with a parameter by asymptotic series. Zbl 0091.08401
Wasow, Wolfgang
1959
Asymptotic decomposition of systems of linear differential equations having poles with respect to a parameter. Zbl 0139.04401
Wasow, W.
1964
On turning point problems for systems with almost diagonal coefficient matrix. Zbl 0151.12602
Wasow, W.
1966
Simple-turning-point problems in unbounded domains. Zbl 0211.11002
Wasow, W.
1970
Asymptotic expansions for ordinary differential equations. Reprint of the 1976 revised edition published by Robert E. Krieger Publishing Company. Zbl 1422.34001
Wasow, Wolfgang
2018
On the analytic validity of formal simplifications of linear differential equations. II. Zbl 0155.42102
Wasow, W.
1967
Finite difference methods for partial differential equations. Reprint of the 1960 original. Zbl 1130.65002
Forsythe, George E.; Wasow, Wolfgang R.
2004
The origins of turning point theory. Zbl 0532.34041
Wasow, Wolfgang
1984
Topics in the theory of linear ordinary differential equations having singularities with respect to a parameter. Zbl 0549.34053
Wasow, Wolfgang
1979
On the asymptotic transformation of certain distributions into the normal distribution. Zbl 0071.12904
Wasow, Wolfgang
1956
Singular perturbation problems of systems of two ordinary analytic differential equations. Zbl 0113.29801
Wasow, W.
1963
On the analytic validity of formal simplifications of linear differential equations. I. Zbl 0156.09505
Wasow, W.
1966
The central connection problem at turning points of linear differential equations. Zbl 0211.11001
Wasow, W.
1971
The asymptotic theory of linear differential equations involving a parameter. Zbl 0068.07001
Wasow, Wolfgang
1955
Solution of certain nonlinear differential equations by the series of exponential functions. Zbl 0081.07901
Wasow, Wolfgang
1958
On the accuracy of implicit difference approximations to the equation of heat flow. Zbl 0082.33301
Wasow, Wolfgang
1958
Calculation of an adiabatic invariant by turning point theory. Zbl 0289.34084
Wasow, Wolfgang
1974
Arnold’s canonical matrices and the asymptotic simplification of ordinary differential equations. Zbl 0364.34003
Wasow, Wolfgang
1977
The capriciousness of singular perturbations. Zbl 0204.40603
Wasow, W.
1970
Asymptotic simplification of linear Hamiltonian differential equations with a parameter. Zbl 0337.34052
Wasow, Wolfgang
1975
Periodic singular perturbations of ordinary differential equations. Zbl 0133.35602
Wasow, W.
1963
Asymptotic expansions for ordinary differential equations. Reprint of the 1976 revised edition published by Robert E. Krieger Publishing Company. Zbl 1422.34001
Wasow, Wolfgang
2018
Finite difference methods for partial differential equations. Reprint of the 1960 original. Zbl 1130.65002
Forsythe, George E.; Wasow, Wolfgang R.
2004
Asymptotic expansions for ordinary differential equations. Reprint (of the ed. publ. 1976 by Robert E. Krieger Publ. Co., Huntington, N.Y.). Zbl 0644.34003
Wasow, Wolfgang
1987
Linear turning point theory. Zbl 0558.34049
Wasow, Wolfgang
1985
The origins of turning point theory. Zbl 0532.34041
Wasow, Wolfgang
1984
Topics in the theory of linear ordinary differential equations having singularities with respect to a parameter. Zbl 0549.34053
Wasow, Wolfgang
1979
Arnold’s canonical matrices and the asymptotic simplification of ordinary differential equations. Zbl 0364.34003
Wasow, Wolfgang
1977
Adiabatic invariants and the asymptotic theory of ordinary linear differential equations. Zbl 0369.34023
Wasow, Wolfgang
1976
Asymptotic simplification of linear Hamiltonian differential equations with a parameter. Zbl 0337.34052
Wasow, Wolfgang
1975
Calculation of an adiabatic invariant by turning point theory. Zbl 0289.34084
Wasow, Wolfgang
1974
Adiabatic invariance of a simple oscillator. Zbl 0252.34064
Wasow, Wolfgang
1973
The central connection problem at turning points of linear differential equations. Zbl 0211.11001
Wasow, W.
1971
Simple-turning-point problems in unbounded domains. Zbl 0211.11002
Wasow, W.
1970
The capriciousness of singular perturbations. Zbl 0204.40603
Wasow, W.
1970
Asymptotic expansions for ordinary differential equations. Zbl 0169.10903
Wasow, W.
1968
Connection problems for asymptotic series. Zbl 0174.39601
Wasow, W.
1968
On the analytic validity of formal simplifications of linear differential equations. II. Zbl 0155.42102
Wasow, W.
1967
Asymptotic simplification of self-adjoint differential equations with a parameter. Zbl 0148.06503
Wasow, W.
1966
On turning point problems for systems with almost diagonal coefficient matrix. Zbl 0151.12602
Wasow, W.
1966
On the analytic validity of formal simplifications of linear differential equations. I. Zbl 0156.09505
Wasow, W.
1966
Asymptotic expansions for ordinary differential equations. Zbl 0133.35301
Wasow, Wolfgang
1965
Asymptotic expansions for ordinary differential equations. Trends and problems. Zbl 0136.08101
Wasow, W.
1964
Asymptotic decomposition of systems of linear differential equations having poles with respect to a parameter. Zbl 0139.04401
Wasow, W.
1964
Finite-difference methods for partial differential equations. Translation from the English by B.M. Budak and N.P. Zhidkov. Zbl 0108.29803
Wasow, W. R.; Forsythe, E.
1963
Simplification of turning point problems for systems of linear differential equations. Zbl 0109.31003
Wasow, W.
1963
Singular perturbation problems of systems of two ordinary analytic differential equations. Zbl 0113.29801
Wasow, W.
1963
Periodic singular perturbations of ordinary differential equations. Zbl 0133.35602
Wasow, W.
1963
On holomorphically similar matrices. Zbl 0108.01601
Wasow, W.
1962
Turning point problems for systems of linear differential equations. II: The analytic theory. Zbl 0142.34403
Wasow, W.
1962
Turning point problems for systems of linear differential equations. I: The formal theory. Zbl 0106.29301
Wasow, Wolfgang
1961
Finite-difference methods for partial differential equations. Zbl 0099.11103
Forsythe, George E.; Wasow, Wolfgang R.
1960
A turning point problem for a system of two linear differential equations. Zbl 0091.26003
Wasow, Wolfgang
1960
Solution of nonlinear differential equations with a parameter by asymptotic series. Zbl 0091.08401
Wasow, Wolfgang
1959
Solution of certain nonlinear differential equations by the series of exponential functions. Zbl 0081.07901
Wasow, Wolfgang
1958
On the accuracy of implicit difference approximations to the equation of heat flow. Zbl 0082.33301
Wasow, Wolfgang
1958
Asymptotic development of the solution of Dirichlet’s problem at analytic corners. Zbl 0077.09802
Wasow, Wolfgang
1957
The accuracy of difference approximations to plane Dirichlet problems with piecewise analytic boundary values. Zbl 0077.11301
Wasow, Wolfgang R.
1957
Singular perturbations of boundary value problems for nonlinear differential equations of the second order. Zbl 0074.30502
Wasow, Wolfgang
1956
On the asymptotic transformation of certain distributions into the normal distribution. Zbl 0071.12904
Wasow, Wolfgang
1956
Discrete approximations to elliptic differential equations. Zbl 0064.37802
Wasow, Wolfgang
1955
The asymptotic theory of linear differential equations involving a parameter. Zbl 0068.07001
Wasow, Wolfgang
1955
On the approximation of linear elliptic differential equations by difference equations with positive coefficients. Zbl 0050.12501
Motzkin, T. S.; Wasow, W.
1953
On small disturbances of plane Couette flow. Zbl 0053.45602
Wasow, Wolfgang
1953
Asymptotic solution of the differential equation of hydrodynamic stability in a domain containing a transition point. Zbl 0051.06602
Wasow, Wolfgang
1953
A note on the inversion of matrices by random walks. Zbl 0048.11303
Wasow, W. R.
1952
On the duration of random walks. Zbl 0054.05902
Wasow, Wolfgang
1951
A study of the solutions of the differential equation $$y^{(4)}+\lambda^2(xy''+y)=0$$ for large values of $$\lambda$$. Zbl 0038.24602
Wasow, Wolfgang
1950
The complex asymptotic theory of a fourth order differential equation of hydrodynamics. Zbl 0031.40202
Wasow, Wolfgang
1948
Singular perturbations of non-linear oscillations. Zbl 0061.19509
Friedrichs, K. O.; Wasow, W. R.
1946
On the asymptotic solution of boundary value problems for ordinary differential equations containing a parameter. Zbl 0061.18202
Wasow, Wolfgang
1944
Asymptotic solution of boundary value problems for the differential equation $$\Delta U+\lambda\partial U/\partial x=\lambda f(x,y)$$. Zbl 0061.23708
Wasow, Wolfgang
1944
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#### Cited by 1,317 Authors

 19 O’Malley, Robert E. jun. 13 Nishimoto, Toshihiko 11 Costin, Ovidiu 11 Howes, Frederick A. 11 Kadalbajoo, Mohan K. 11 Wasow, Wolfgang R. 10 Barkatou, Moulay A. 9 Bertola, Marco 9 Schäfke, Reinhard 8 Balser, Werner 8 Gingold, Harry 8 Harris, William A. jun. 8 Leung, Anthony Wing-Kwok 8 Lutz, Donald A. 7 Evans, David John 7 Yurko, Vjacheslav Anatoljevich 6 Freiling, Gerhard 6 Greenspan, Donald 6 Its, Alexander Rudolfovich 6 Nakano, Minoru 6 Sibuya, Yasutaka 6 Tanveer, Saleh 5 Artstein, Zvi 5 Cafasso, Mattia 5 Henn, Johannes M. 5 Jurkat, Wolfgang B. 5 Ramis, Jean-Pierre 5 Stengle, Gilbert 4 Erdélyi, Arthur 4 Fruchard, Augustin 4 Gilbert, Richard C. 4 Ginoux, Jean-Marc 4 Hall, Charles Allan 4 Hoppensteadt, Frank C. 4 Joubert, Gerhard R. 4 Kitaev, Alexander V. 4 Klyuchnyk, I. H. 4 Langer, Rudolph Ernest 4 Meyer, Richard Ernst 4 Missirlis, Nikolaos M. 4 Oberman, Adam M. 4 Parter, Seymour V. 4 Reid, William H. 4 Shimomura, Shun 4 Tovbis, Alexander 4 Trudinger, Neil Sidney 4 Zauderer, Erich 3 Bramble, James H. 3 Brandt, Achi E. 3 Broyden, Charles George 3 Cappiello, Marco 3 Concus, Paul 3 Dehghan Takht Fooladi, Mehdi 3 Dieci, Luca 3 Elia, Cinzia 3 Elias, Uri 3 Fife, Paul C. 3 Friedland, Shmuel 3 Geetha, Neelamegam 3 Gontsov, Renat R. 3 Grigorenko, V. K. 3 Gupta, Vikas 3 Guralnick, Robert Michael 3 Guzzetti, Davide 3 Khabibullin, Ismagil Talgatovich 3 Hsieh, Po-Fang 3 Hubbard, B. E. 3 Huerre, Patrick 3 Iritani, Hiroshi 3 Jung, Changyeol 3 Kapaev, Andrei A. 3 Keller, Joseph Bishop 3 Kellogg, Bruce 3 Konyaev, Yu. A. 3 Konyukhova, Nadja B. 3 Kossovskiy, Il’ya Grigor’evich 3 Kreiss, Heinz-Otto 3 Krylov, Nicolaĭ Vladimirovich 3 Kuo, Hung-Ju 3 Kurochkin, S. V. 3 Lafitte, Olivier D. 3 Loday-Richaud, Michèle 3 Loeb, Daniel E. 3 Martinet, Jean 3 Masoero, Davide 3 McAllister, Gregory T. 3 Natesan, Srinivasan 3 Nishitani, Tatsuo 3 Pao, Chia-Ven 3 Patidar, Kailash C. 3 Pflügel, Eckhard 3 Rejto, Peter 3 Rodino, Luigi 3 Roos, Hans-Görg 3 Samovol, Vladimir Simkhovich 3 Samrout, Y. M. 3 Sari, Tewfik 3 Segala, Fausto 3 Shkil, N. I. 3 Smirnov, Aleksandr Vladimirovich ...and 1,217 more Authors
all top 5

#### Cited in 286 Serials

 65 Numerische Mathematik 62 Journal of Mathematical Analysis and Applications 37 Journal of Differential Equations 34 Journal of Computational Physics 29 Mathematics of Computation 27 Archive for Rational Mechanics and Analysis 22 Linear Algebra and its Applications 21 Ukrainian Mathematical Journal 21 Transactions of the American Mathematical Society 21 Journal of Mathematical Sciences (New York) 19 Studies in Applied Mathematics 17 Communications in Mathematical Physics 17 Applied Mathematics and Computation 16 Computer Methods in Applied Mechanics and Engineering 16 Journal of Computational and Applied Mathematics 14 Communications on Pure and Applied Mathematics 14 Annales de l’Institut Fourier 14 Mathematische Nachrichten 14 Kodai Mathematical Seminar Reports 13 Journal of Fluid Mechanics 11 Journal of Mathematical Physics 11 Advances in Mathematics 11 International Journal of Computer Mathematics 10 Duke Mathematical Journal 10 Mathematische Zeitschrift 10 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications 9 Computers & Mathematics with Applications 9 Journal of Engineering Mathematics 9 Journal of the Franklin Institute 8 Applicable Analysis 8 Fluid Dynamics 8 Computing 8 Proceedings of the American Mathematical Society 8 Communications in Partial Differential Equations 8 Journal of High Energy Physics 8 Nonlinear Analysis. Theory, Methods & Applications 7 Theoretical and Mathematical Physics 7 ZAMP. Zeitschrift für angewandte Mathematik und Physik 7 Zeitschrift für Angewandte Mathematik und Mechanik (ZAMM) 7 Annali di Matematica Pura ed Applicata. Serie Quarta 7 Journal of Optimization Theory and Applications 7 Journal of Soviet Mathematics 7 Proceedings of the Japan Academy. Series A 7 Results in Mathematics 7 SIAM Journal on Numerical Analysis 7 Journal of Symbolic Computation 7 Journal of Scientific Computing 6 International Journal of Engineering Science 6 Mathematical Notes 6 Annales Scientifiques de l’École Normale Supérieure. Quatrième Série 6 Mathematische Annalen 6 Rendiconti del Seminario Matematico della Università di Padova 6 Physica D 6 Annales de la Faculté des Sciences de Toulouse. Mathématiques. Série VI 6 Journal of Dynamical and Control Systems 6 Bulletin of the American Mathematical Society 6 BIT. Nordisk Tidskrift for Informationsbehandling 5 Functional Analysis and its Applications 5 Mathematics and Computers in Simulation 5 Proceedings of the Edinburgh Mathematical Society. Series II 5 Computational Mathematics and Mathematical Physics 5 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 5 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 5 Doklady Mathematics 5 PMM, Journal of Applied Mathematics and Mechanics 4 International Journal of Control 4 Journal d’Analyse Mathématique 4 Lithuanian Mathematical Journal 4 Mathematical Biosciences 4 Physics of Fluids 4 Rocky Mountain Journal of Mathematics 4 Calcolo 4 Journal of Approximation Theory 4 Applied Numerical Mathematics 4 SIAM Journal on Mathematical Analysis 4 Physics of Fluids 4 Proceedings of the Japan Academy 4 Nonlinear Oscillations 3 Computer Physics Communications 3 International Journal of Systems Science 3 Letters in Mathematical Physics 3 Bulletin of Mathematical Biology 3 BIT 3 Inventiones Mathematicae 3 Journal of the Mathematical Society of Japan 3 Publications of the Research Institute for Mathematical Sciences, Kyoto University 3 Rendiconti del Circolo Matemàtico di Palermo. Serie II 3 Siberian Mathematical Journal 3 Advances in Applied Mathematics 3 Applied Mathematics and Mechanics. (English Edition) 3 The Journal of Geometric Analysis 3 Journal of the Australian Mathematical Society 3 International Journal of Control, I. Series 3 Analysis and Mathematical Physics 3 International Journal of Applied and Computational Mathematics 2 International Journal of Theoretical Physics 2 Israel Journal of Mathematics 2 Journal of Applied Mathematics and Mechanics 2 Journal of Mathematical Biology 2 Linear and Multilinear Algebra ...and 186 more Serials
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#### Cited in 57 Fields

 403 Ordinary differential equations (34-XX) 276 Partial differential equations (35-XX) 262 Numerical analysis (65-XX) 111 Fluid mechanics (76-XX) 44 Quantum theory (81-XX) 41 Dynamical systems and ergodic theory (37-XX) 37 Functions of a complex variable (30-XX) 37 Operator theory (47-XX) 36 Linear and multilinear algebra; matrix theory (15-XX) 35 Several complex variables and analytic spaces (32-XX) 29 Difference and functional equations (39-XX) 28 Special functions (33-XX) 28 Differential geometry (53-XX) 27 Mechanics of deformable solids (74-XX) 27 Biology and other natural sciences (92-XX) 25 Calculus of variations and optimal control; optimization (49-XX) 22 Systems theory; control (93-XX) 21 Algebraic geometry (14-XX) 20 Approximations and expansions (41-XX) 20 Computer science (68-XX) 19 Probability theory and stochastic processes (60-XX) 14 Global analysis, analysis on manifolds (58-XX) 13 Statistical mechanics, structure of matter (82-XX) 11 Field theory and polynomials (12-XX) 11 Mechanics of particles and systems (70-XX) 10 Combinatorics (05-XX) 10 Number theory (11-XX) 10 Sequences, series, summability (40-XX) 10 Integral equations (45-XX) 10 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 9 Potential theory (31-XX) 9 Classical thermodynamics, heat transfer (80-XX) 8 Optics, electromagnetic theory (78-XX) 7 Group theory and generalizations (20-XX) 6 Commutative algebra (13-XX) 6 Geophysics (86-XX) 6 Operations research, mathematical programming (90-XX) 5 History and biography (01-XX) 5 Nonassociative rings and algebras (17-XX) 5 Functional analysis (46-XX) 5 Statistics (62-XX) 4 Mathematical logic and foundations (03-XX) 4 Manifolds and cell complexes (57-XX) 3 Associative rings and algebras (16-XX) 3 Category theory; homological algebra (18-XX) 3 Topological groups, Lie groups (22-XX) 3 Real functions (26-XX) 3 Relativity and gravitational theory (83-XX) 3 Astronomy and astrophysics (85-XX) 2 $$K$$-theory (19-XX) 2 Harmonic analysis on Euclidean spaces (42-XX) 2 Geometry (51-XX) 2 Convex and discrete geometry (52-XX) 1 General and overarching topics; collections (00-XX) 1 Integral transforms, operational calculus (44-XX) 1 Algebraic topology (55-XX) 1 Information and communication theory, circuits (94-XX)