Edit Profile (opens in new tab) Weidmann, Joachim Compute Distance To: Compute Author ID: weidmann.joachim Published as: Weidmann, Joachim; Weidmann, J. External Links: MGP · Wikidata · GND · IdRef Documents Indexed: 44 Publications since 1965, including 6 Books 1 Further Contribution Reviewing Activity: 41 Reviews Co-Authors: 14 Co-Authors with 17 Joint Publications 336 Co-Co-Authors all top 5 Co-Authors 28 single-authored 4 Stolz, Gunter 4 Veselić, Krešimir 3 Jörgens, Konrad 2 Brasche, Johannes Friedemann 2 Everitt, William Norrie 2 Neidhardt, Hagen 1 Bailey, Paul B. 1 Buschmann, Dirk 1 Giertz, Magnus 1 Gustafson, Karl Edwin 1 Poerschke, Thomas Michael 1 Rellich, Franz 1 Tafel, Werner 1 Voigt, Jurgen 1 Zettl, Anton all top 5 Serials 8 Mathematische Zeitschrift 4 Mathematische Annalen 3 Journal für die Reine und Angewandte Mathematik 2 Results in Mathematics 2 Bulletin of the American Mathematical Society 2 Lecture Notes in Mathematics 1 Communications on Pure and Applied Mathematics 1 Journal of Mathematical Analysis and Applications 1 Acta Scientiarum Mathematicarum 1 Integral Equations and Operator Theory 1 Journal of Functional Analysis 1 Manuscripta Mathematica 1 Mathematica Scandinavica 1 Analysis 1 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 1 Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica 1 Graduate Texts in Mathematics all top 5 Fields 30 Operator theory (47-XX) 14 Partial differential equations (35-XX) 13 Ordinary differential equations (34-XX) 2 History and biography (01-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Integral equations (45-XX) 1 Functional analysis (46-XX) 1 Quantum theory (81-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 38 Publications have been cited 1,312 times in 1,110 Documents Cited by ▼ Year ▼ Spectral theory of ordinary differential operators. Zbl 0647.47052Weidmann, Joachim 318 1987 Linear operators in Hilbert spaces. Transl. by Joseph Szücs. Zbl 0434.47001Weidmann, Joachim 293 1980 Lineare Operatoren in Hilberträumen. Zbl 0344.47001Weidmann, Joachim 75 1976 On the essential spectrum. Zbl 0189.44104Gustafson, K.; Weidmann, J. 64 1969 Zur Spektraltheorie von Sturm-Liouville-Operatoren. Zbl 0168.12301Weidmann, J. 55 1967 The virial theorem and its application to the spectral theory of SChrödinger operators. Zbl 0156.23304Weidmann, J. 53 1967 Oszillationsmethoden für Systeme gewöhnlicher Differentialgleichungen. Zbl 0206.10002Weidmann, J. 49 1971 Regular approximations of singular Sturm-Liouville problems. Zbl 0778.34015Bailey, P. B.; Everitt, W. N.; Weidmann, J.; Zettl, A. 39 1993 Linear operators in Hilbert spaces. Part II: Applications. (Lineare Operatoren in Hilberträumen. Teil II: Anwendungen.) Zbl 1025.47001Weidmann, Joachim 36 2003 Linear operators in Hilbert spaces. Part I: Foundations. (Lineare Operatoren in Hilberträumen. Teil I: Grundlagen.) Zbl 0972.47002Weidmann, Joachim 33 2000 Some remarks on a separation and limit-point criterion of second-order, ordinary differential expressions. Zbl 0235.34045Everitt, W. N.; Giertz, M.; Weidmann, J. 28 1973 One-dimensional Schrödinger operators with local point interactions. Zbl 0833.34082Buschmann, D.; Stolz, G.; Weidmann, J. 28 1995 Absolut stetiges Spektrum bei Sturm-Liouville-Operatoren und Dirac-Systemen. Zbl 0479.34007Weidmann, Joachim 23 1982 Spectral properties of Hamiltonian operators. Zbl 0248.35002Jörgens, Konrad; Weidmann, Joachim 19 1973 Expansions in generalized eigenfunctions of selfadjoint operators. Zbl 0661.47021Poerschke, Thomas; Stolz, Günter; Weidmann, Joachim 17 1989 Stetige Abhängigkeit der Eigenwerte und Eigenfunktionen elliptischer Differentialoperatoren vom Gebiet. Zbl 0526.35061Weidmann, Joachim 17 1984 Strong operator convergence and spectral theory of ordinary differential operators. Zbl 0964.47004Weidmann, Joachim 16 1997 Carlemanoperatoren. Zbl 0185.20401Weidmann, J. 16 1970 Approximation of isolated eigenvalues of general singular ordinary differential operators. Zbl 0842.47029Stolz, Günter; Weidmann, Joachim 16 1995 Approximation of isolated eigenvalues of ordinary differential operators. Zbl 0781.34052Stolz, Günter; Weidmann, Joachim 15 1993 Eigenwerttheorie gewöhnlicher Differentialgleichungen. Bearbeitet von J. Weidmann. Zbl 0347.34013Jörgens, Konrad; Rellich, Franz 15 1976 Strong Carleman operators are of Hilbert-Schmidt type. Zbl 0165.49301Weidmann, J. 10 1968 Spectral theory of Sturm-Liouville operators approximation by regular problems. Zbl 1098.34065Weidmann, Joachim 10 2005 On the point spectrum of selfadjoint extensions. Zbl 0791.47005Brasche, Johannes; Neidhardt, Hagen; Weidmann, Joachim 9 1993 Potential scattering in a homogeneous electrostatic field. Zbl 0364.35042Veselic, Kresimir; Weidmann, Joachim 9 1977 Continuity of the eigenvalues of self-adjoint operators with respect to the strong operator topology. Zbl 0476.47008Weidmann, Joachim 8 1980 Monotone continuity of the spectral resolution and the eigenvalues. Zbl 0448.47008Weidmann, Joachim 8 1980 Asymptotic estimates of wave functions and the existence of wave operators. Zbl 0286.47006Veselic, Kresimir; Weidmann, Joachim 8 1974 On the continuous spectrum of Schrödinger operators. Zbl 0138.35804Weidmann, J. 8 1966 Existenz der Wellenoperatoren für eine allgemeine Klasse von Operatoren. Zbl 0258.47011Veselic, Kresimir; Weidmann, Joachim 7 1973 Integraloperatoren der Spurklasse. Zbl 0134.31901Weidmann, J. 6 1966 Zur Existenz der Wellenoperatoren. Zbl 0252.35061Jörgens, Konrad; Weidmann, Joachim 5 1973 On the spectra of selfadjoint extensions. Zbl 0797.47002Brasche, Johannes; Neidhardt, Hagen; Weidmann, Joachim 4 1993 Note to the paper by R. Hempel, A. M. Hinz, and H. Kalf: On the essential spectrum of Schrödinger operators with spherically symmetric potentials. Zbl 0629.35029Weidmann, J. 4 1987 Spectral theory of partial differential operators. Zbl 0313.47032Weidmann, Joachim 2 1975 Ein Satz über nukleare Operatoren im Hilbertraum. Zbl 0131.33002Weidmann, Joachim 2 1965 Uniform nonsubordinary and the absolutely continuous spectrum. Zbl 0848.34068Weidmann, Joachim 1 1996 Verteilung der Eigenwerte für eine Klasse von Integraloperatoren in \(L_2(a,b)\). Zbl 0307.34022Weidmann, Joachim 1 1975 Spectral theory of Sturm-Liouville operators approximation by regular problems. Zbl 1098.34065Weidmann, Joachim 10 2005 Linear operators in Hilbert spaces. Part II: Applications. (Lineare Operatoren in Hilberträumen. Teil II: Anwendungen.) Zbl 1025.47001Weidmann, Joachim 36 2003 Linear operators in Hilbert spaces. Part I: Foundations. (Lineare Operatoren in Hilberträumen. Teil I: Grundlagen.) Zbl 0972.47002Weidmann, Joachim 33 2000 Strong operator convergence and spectral theory of ordinary differential operators. Zbl 0964.47004Weidmann, Joachim 16 1997 Uniform nonsubordinary and the absolutely continuous spectrum. Zbl 0848.34068Weidmann, Joachim 1 1996 One-dimensional Schrödinger operators with local point interactions. Zbl 0833.34082Buschmann, D.; Stolz, G.; Weidmann, J. 28 1995 Approximation of isolated eigenvalues of general singular ordinary differential operators. Zbl 0842.47029Stolz, Günter; Weidmann, Joachim 16 1995 Regular approximations of singular Sturm-Liouville problems. Zbl 0778.34015Bailey, P. B.; Everitt, W. N.; Weidmann, J.; Zettl, A. 39 1993 Approximation of isolated eigenvalues of ordinary differential operators. Zbl 0781.34052Stolz, Günter; Weidmann, Joachim 15 1993 On the point spectrum of selfadjoint extensions. Zbl 0791.47005Brasche, Johannes; Neidhardt, Hagen; Weidmann, Joachim 9 1993 On the spectra of selfadjoint extensions. Zbl 0797.47002Brasche, Johannes; Neidhardt, Hagen; Weidmann, Joachim 4 1993 Expansions in generalized eigenfunctions of selfadjoint operators. Zbl 0661.47021Poerschke, Thomas; Stolz, Günter; Weidmann, Joachim 17 1989 Spectral theory of ordinary differential operators. Zbl 0647.47052Weidmann, Joachim 318 1987 Note to the paper by R. Hempel, A. M. Hinz, and H. Kalf: On the essential spectrum of Schrödinger operators with spherically symmetric potentials. Zbl 0629.35029Weidmann, J. 4 1987 Stetige Abhängigkeit der Eigenwerte und Eigenfunktionen elliptischer Differentialoperatoren vom Gebiet. Zbl 0526.35061Weidmann, Joachim 17 1984 Absolut stetiges Spektrum bei Sturm-Liouville-Operatoren und Dirac-Systemen. Zbl 0479.34007Weidmann, Joachim 23 1982 Linear operators in Hilbert spaces. Transl. by Joseph Szücs. Zbl 0434.47001Weidmann, Joachim 293 1980 Continuity of the eigenvalues of self-adjoint operators with respect to the strong operator topology. Zbl 0476.47008Weidmann, Joachim 8 1980 Monotone continuity of the spectral resolution and the eigenvalues. Zbl 0448.47008Weidmann, Joachim 8 1980 Potential scattering in a homogeneous electrostatic field. Zbl 0364.35042Veselic, Kresimir; Weidmann, Joachim 9 1977 Lineare Operatoren in Hilberträumen. Zbl 0344.47001Weidmann, Joachim 75 1976 Eigenwerttheorie gewöhnlicher Differentialgleichungen. Bearbeitet von J. Weidmann. Zbl 0347.34013Jörgens, Konrad; Rellich, Franz 15 1976 Spectral theory of partial differential operators. Zbl 0313.47032Weidmann, Joachim 2 1975 Verteilung der Eigenwerte für eine Klasse von Integraloperatoren in \(L_2(a,b)\). Zbl 0307.34022Weidmann, Joachim 1 1975 Asymptotic estimates of wave functions and the existence of wave operators. Zbl 0286.47006Veselic, Kresimir; Weidmann, Joachim 8 1974 Some remarks on a separation and limit-point criterion of second-order, ordinary differential expressions. Zbl 0235.34045Everitt, W. N.; Giertz, M.; Weidmann, J. 28 1973 Spectral properties of Hamiltonian operators. Zbl 0248.35002Jörgens, Konrad; Weidmann, Joachim 19 1973 Existenz der Wellenoperatoren für eine allgemeine Klasse von Operatoren. Zbl 0258.47011Veselic, Kresimir; Weidmann, Joachim 7 1973 Zur Existenz der Wellenoperatoren. Zbl 0252.35061Jörgens, Konrad; Weidmann, Joachim 5 1973 Oszillationsmethoden für Systeme gewöhnlicher Differentialgleichungen. Zbl 0206.10002Weidmann, J. 49 1971 Carlemanoperatoren. Zbl 0185.20401Weidmann, J. 16 1970 On the essential spectrum. Zbl 0189.44104Gustafson, K.; Weidmann, J. 64 1969 Strong Carleman operators are of Hilbert-Schmidt type. Zbl 0165.49301Weidmann, J. 10 1968 Zur Spektraltheorie von Sturm-Liouville-Operatoren. Zbl 0168.12301Weidmann, J. 55 1967 The virial theorem and its application to the spectral theory of SChrödinger operators. Zbl 0156.23304Weidmann, J. 53 1967 On the continuous spectrum of Schrödinger operators. Zbl 0138.35804Weidmann, J. 8 1966 Integraloperatoren der Spurklasse. Zbl 0134.31901Weidmann, J. 6 1966 Ein Satz über nukleare Operatoren im Hilbertraum. Zbl 0131.33002Weidmann, Joachim 2 1965 all cited Publications top 5 cited Publications all top 5 Cited by 1,103 Authors 32 Gesztesy, Fritz 29 Jeribi, Aref 27 Zettl, Anton 23 Shi, Yuming 21 Teschl, Gerald 20 Behrndt, Jussi 20 Sun, Jiong 17 Sun, Huaqing 16 Simon, Barry 16 Weidmann, Joachim 15 Malamud, Mark M. 14 Allahverdiev, Bilender Paşaoğlu 13 Kostenko, Aleksey S. 13 Neidhardt, Hagen 13 Qi, Jiangang 12 Schmidt, Karl Michael 11 Everitt, William Norrie 11 Exner, Pavel 11 Li, Kun 10 Behncke, Horst 10 Hinton, Don Barker 10 Korotkov, Vitalii Borisovich 10 Lotoreichik, Vladimir 10 Marletta, Marco 10 Ren, Guojing 10 Tuna, Hüseyin 9 El-Gebeily, Mohamed A. 9 Lenz, Daniel H. 9 Trunk, Carsten 8 Herbst, Ira W. 8 Krejčiřík, David 8 Latrach, Khalid 8 O’Regan, Donal 8 Remling, Christian 8 Tretter, Christiane 7 Abdmouleh, Faiçal 7 Chen, Shaozhu 7 del Río Castillo, Rafael René 7 Hao, Xiaoling 7 Klaus, Martin 7 Stolz, Gunter 7 Wei, Guangsheng 7 Zhang, Maozhu 7 Zheng, Zhaowen 6 Brasche, Johannes Friedemann 6 Evans, William Desmond 6 Hempel, Rainer 6 Hinz, Andreas M. 6 Jung, Il Bong 6 Kalf, Hubert 6 Kirsten, Klaus 6 Latushkin, Yuri 6 Liu, Yan 6 Möller, Manfred 6 Nichols, Roger 6 Schechter, Martin 6 Stochel, Jan 6 Sukhtayev, Alim 6 Wang, Aiping 6 Wang, Wanyi 5 Ammar, Aymen 5 Ao, Jijun 5 Binding, Paul Anthony 5 Brown, B. Malcolm 5 Currie, Sonja 5 Eckhardt, Jonathan 5 Kiessling, Michael Karl-Heinz 5 Kolb, Martin 5 Kong, Qingkai 5 Lukic, Milivoje 5 Moalla, Nedra 5 Mogilevskii, Vadim 5 Naboko, Serguei N. 5 Nyamwala, Fredrick Oluoch 5 Rejto, P. A. 5 Seelmann, Albrecht 5 Silva, Luis O. 5 Sukochev, Fedor Anatol’evich 5 Tahvildar-Zadeh, A. Shadi 5 Tiedra de Aldecoa, Rafael 5 Veselić, Krešimir 5 Virág, Bálint 5 Walha, Ines 5 Watson, Bruce Alastair 5 Zemánek, Petr 4 Albeverio, Sergio A. 4 Ben-Artzi, Matania 4 Bögli, Sabine 4 Callier, Frank M. 4 Chen, Alatancang 4 Choe, Boo Rim 4 Daners, Daniel 4 Dehici, Abdelkader 4 Delgado, Julio 4 Donninger, Roland 4 Holden, Helge 4 Howard, Peter 4 Hryniv, Rostyslav O. 4 Jabłoński, Zenon Jan 4 Kiselev, Alexander A. ...and 1,003 more Authors all top 5 Cited in 267 Serials 70 Journal of Mathematical Analysis and Applications 47 Journal of Functional Analysis 46 Integral Equations and Operator Theory 44 Journal of Mathematical Physics 42 Communications in Mathematical Physics 42 Journal of Differential Equations 35 Mathematische Zeitschrift 35 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 27 Proceedings of the American Mathematical Society 24 Mathematische Nachrichten 20 Transactions of the American Mathematical Society 19 Journal of Computational and Applied Mathematics 16 Letters in Mathematical Physics 16 Annales Henri Poincaré 15 Mathematische Annalen 14 Reviews in Mathematical Physics 14 Results in Mathematics 12 Complex Analysis and Operator Theory 11 Linear Algebra and its Applications 11 Annales de l’Institut Henri Poincaré. Physique Théorique 10 Applied Mathematics and Computation 10 Publications of the Research Institute for Mathematical Sciences, Kyoto University 9 Mathematical Methods in the Applied Sciences 9 Advances in Mathematics 9 Numerische Mathematik 8 Applicable Analysis 8 Manuscripta Mathematica 8 Abstract and Applied Analysis 8 Boundary Value Problems 8 Journal of Spectral Theory 7 Duke Mathematical Journal 7 Siberian Mathematical Journal 6 Mathematical Notes 6 Rocky Mountain Journal of Mathematics 6 Journal of Approximation Theory 6 Calculus of Variations and Partial Differential Equations 6 Mathematical Physics, Analysis and Geometry 6 Mediterranean Journal of Mathematics 6 Advances in Difference Equations 6 Operators and Matrices 5 Archive for Rational Mechanics and Analysis 5 International Journal of Theoretical Physics 5 Israel Journal of Mathematics 5 Linear and Multilinear Algebra 5 Reports on Mathematical Physics 5 Acta Applicandae Mathematicae 5 Journal de Mathématiques Pures et Appliquées. Neuvième Série 4 Journal d’Analyse Mathématique 4 Journal of Statistical Physics 4 Functional Analysis and its Applications 4 Memoirs of the American Mathematical Society 4 Monatshefte für Mathematik 4 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 4 Proceedings of the Edinburgh Mathematical Society. Series II 4 Acta Mathematicae Applicatae Sinica. English Series 4 Probability Theory and Related Fields 4 The Journal of Geometric Analysis 4 SIAM Journal on Mathematical Analysis 4 Journal of Evolution Equations 4 Concrete Operators 4 Nonlinear Analysis. Theory, Methods & Applications 3 Computers & Mathematics with Applications 3 Ukrainian Mathematical Journal 3 Mathematics of Computation 3 Journal of Geometry and Physics 3 Annales de l’Institut Fourier 3 The Annals of Statistics 3 Archiv der Mathematik 3 Computing 3 Glasgow Mathematical Journal 3 Numerical Functional Analysis and Optimization 3 Rendiconti del Circolo Matemàtico di Palermo. Serie II 3 SIAM Journal on Control and Optimization 3 Stochastic Analysis and Applications 3 Constructive Approximation 3 Communications in Partial Differential Equations 3 Indagationes Mathematicae. New Series 3 Filomat 3 International Journal of Geometric Methods in Modern Physics 3 Bulletin of the American Mathematical Society 3 Analysis and Mathematical Physics 3 Advances in Operator Theory 2 Communications on Pure and Applied Mathematics 2 General Relativity and Gravitation 2 Theoretical and Mathematical Physics 2 Zeitschrift für Angewandte Mathematik und Mechanik (ZAMM) 2 Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg 2 Acta Mathematica 2 Annali di Matematica Pura ed Applicata. Serie Quarta 2 The Annals of Probability 2 BIT 2 Dissertationes Mathematicae 2 Journal of Econometrics 2 Mathematica Slovaca 2 Mathematika 2 Quaestiones Mathematicae 2 Quarterly of Applied Mathematics 2 Zeitschrift für Analysis und ihre Anwendungen 2 Annals of Global Analysis and Geometry 2 Journal of Complexity ...and 167 more Serials all top 5 Cited in 54 Fields 588 Operator theory (47-XX) 393 Ordinary differential equations (34-XX) 292 Partial differential equations (35-XX) 234 Quantum theory (81-XX) 69 Functional analysis (46-XX) 51 Global analysis, analysis on manifolds (58-XX) 49 Probability theory and stochastic processes (60-XX) 49 Numerical analysis (65-XX) 44 Difference and functional equations (39-XX) 43 Statistical mechanics, structure of matter (82-XX) 38 Dynamical systems and ergodic theory (37-XX) 25 Differential geometry (53-XX) 21 Linear and multilinear algebra; matrix theory (15-XX) 21 Relativity and gravitational theory (83-XX) 20 Calculus of variations and optimal control; optimization (49-XX) 19 Harmonic analysis on Euclidean spaces (42-XX) 17 Systems theory; control (93-XX) 15 Integral equations (45-XX) 14 Special functions (33-XX) 13 Topological groups, Lie groups (22-XX) 13 Real functions (26-XX) 11 Several complex variables and analytic spaces (32-XX) 10 Combinatorics (05-XX) 10 Functions of a complex variable (30-XX) 10 Approximations and expansions (41-XX) 10 Statistics (62-XX) 9 Mechanics of particles and systems (70-XX) 9 Fluid mechanics (76-XX) 9 Optics, electromagnetic theory (78-XX) 8 Potential theory (31-XX) 8 Mechanics of deformable solids (74-XX) 6 Integral transforms, operational calculus (44-XX) 5 Measure and integration (28-XX) 5 Operations research, mathematical programming (90-XX) 5 Biology and other natural sciences (92-XX) 4 History and biography (01-XX) 4 Mathematical logic and foundations (03-XX) 4 Number theory (11-XX) 4 Abstract harmonic analysis (43-XX) 4 Manifolds and cell complexes (57-XX) 4 Computer science (68-XX) 3 Sequences, series, summability (40-XX) 2 Algebraic geometry (14-XX) 2 \(K\)-theory (19-XX) 2 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Associative rings and algebras (16-XX) 1 Nonassociative rings and algebras (17-XX) 1 Category theory; homological algebra (18-XX) 1 Convex and discrete geometry (52-XX) 1 General topology (54-XX) 1 Classical thermodynamics, heat transfer (80-XX) 1 Astronomy and astrophysics (85-XX) 1 Geophysics (86-XX) 1 Information and communication theory, circuits (94-XX) Citations by Year Wikidata Timeline The data are displayed as stored in Wikidata under a Creative Commons CC0 License. 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