Edit Profile Behrndt, Jussi Compute Distance To: Compute Author ID: behrndt.jussi Published as: Behrndt, J.; Behrndt, Jussi Homepage: https://www.math.tugraz.at/~behrndt/ External Links: MGP · ORCID · dblp · GND Documents Indexed: 106 Publications since 2005, including 4 Books Reviewing Activity: 34 Reviews all top 5 Co-Authors 9 single-authored 24 Trunk, Carsten 16 Lotoreichik, Vladimir 12 Langer, Matthias 10 de Snoo, Hendrik S. V. 9 Hassi, Seppo 8 Holzmann, Markus 8 Neidhardt, Hagen 8 Rohleder, Jonathan 7 Exner, Pavel 7 Philipp, Friedrich 6 Malamud, Mark M. 5 Gesztesy, Fritz 4 Azizov, Tomas Ya. 4 Förster, Karl-Heinz 4 Jonas, Peter 4 Luger, Annemarie 4 Möws, Roland 4 Wietsma, Rudi 3 Leben, Leslie 3 Schlosser, Peter 2 Ball, Joseph Anthony 2 Colombo, Fabrizio 2 Derkach, Vladimir Alexandrovich 2 Holden, Helge 2 Katatbeh, Qutaibeh Deeb 2 Martínez Pería, Francisco D. 2 Micheler, Till 2 Mitrea, Marius 2 Nichols, Roger 2 Pankrashkin, Konstantin 2 Schmitz, Philipp 2 ter Elst, Antonius Frederik Maria 1 Aharonov, Yakir 1 Alpay, Daniel Aron 1 Arendt, Wolfgang 1 Brown, Malcolm 1 Chen, Shaozhu 1 Frank, Rupert L. 1 Grubb, Gerd 1 Ichinose, Takashi 1 Krejčiřík, David 1 Kreusler, Hans-Christian 1 Kühn, Christian 1 Kurula, Mikael 1 Langer, Heinz 1 Lobanov, Igor 1 Mantile, Andrea 1 Mas, Albert 1 Mehl, Christian 1 Mehrmann, Volker 1 Nakamura, Shu 1 Ourmiéres-Bonafos, Thomas 1 Plum, Michael 1 Popov, Igor’ Yur’evich 1 Posilicano, Andrea 1 Post, Olaf 1 Qi, Jiangang 1 Racec, Elena R. 1 Racec, Paul N. 1 Rehberg, Joachim 1 Spitkovsky, Ilya Matvey 1 Stadler, Simon 1 van der Schaft, Arjan J. 1 Wietsma, Hendrik Luit 1 Winkler, Henrik 1 Wulf, Ulrich 1 Zagrebnov, Valentin A. 1 Zwart, Hans J. all top 5 Serials 9 Journal of Differential Equations 7 Journal of Functional Analysis 6 Journal of Mathematical Analysis and Applications 6 Integral Equations and Operator Theory 5 Journal of Spectral Theory 4 Mathematische Nachrichten 4 Proceedings of the American Mathematical Society 4 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 4 Complex Analysis and Operator Theory 3 Journal of the London Mathematical Society. Second Series 3 Linear Algebra and its Applications 3 Annales Henri Poincaré 3 Journal of Physics A: Mathematical and Theoretical 3 Operator Theory: Advances and Applications 2 Reviews in Mathematical Physics 2 Mathematische Annalen 2 Journal of Operator Theory 2 Opuscula Mathematica 2 Oberwolfach Reports 2 Quantum Studies: Mathematics and Foundations 1 Inverse Problems 1 Journal d’Analyse Mathématique 1 Journal of Mathematical Physics 1 Advances in Mathematics 1 Proceedings of the London Mathematical Society. Third Series 1 Communications in Partial Differential Equations 1 Journal de Mathématiques Pures et Appliquées. Neuvième Série 1 European Mathematical Society Newsletter 1 Methods of Functional Analysis and Topology 1 Mathematical Physics, Analysis and Geometry 1 Monographs in Mathematics 1 Operators and Matrices 1 Discrete and Continuous Dynamical Systems. Series S 1 Bulletin of Mathematical Sciences 1 Nanosystems. Physics, Chemistry, Mathematics all top 5 Fields 91 Operator theory (47-XX) 42 Partial differential equations (35-XX) 29 Ordinary differential equations (34-XX) 28 Quantum theory (81-XX) 15 Functional analysis (46-XX) 7 General and overarching topics; collections (00-XX) 4 Functions of a complex variable (30-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 2 History and biography (01-XX) 2 Several complex variables and analytic spaces (32-XX) 2 Global analysis, analysis on manifolds (58-XX) 2 Systems theory; control (93-XX) 1 Real functions (26-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Integral transforms, operational calculus (44-XX) 1 Probability theory and stochastic processes (60-XX) 1 Numerical analysis (65-XX) 1 Optics, electromagnetic theory (78-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 91 Publications have been cited 823 times in 370 Documents Cited by ▼ Year ▼ Boundary value problems for elliptic partial differential operators on bounded domains. Zbl 1132.47038Behrndt, Jussi; Langer, Matthias 58 2007 Schrödinger operators with \(\delta\) and \(\delta^{\prime}\)-potentials supported on hypersurfaces. Zbl 1275.81027Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir 49 2013 Scattering matrices and Weyl functions. Zbl 1161.47008Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 38 2008 Elliptic operators, Dirichlet-to-Neumann maps and quasi boundary triples. Zbl 1331.47067Behrndt, Jussi; Langer, Matthias 32 2012 Schrödinger operators with \(\delta\)- and \(\delta'\)-interactions on Lipschitz surfaces and chromatic numbers of associated partitions. Zbl 1326.47050Behrndt, Jussi; Exner, Pavel; Lotoreichik, Vladimir 20 2014 Generalized \(Q\)-functions and Dirichlet-to-Neumann maps for elliptic differential operators. Zbl 1179.47041Alpay, Daniel; Behrndt, Jussi 20 2009 Schrödinger operators with \(\delta\)-interactions supported on conical surfaces. Zbl 1297.35154Behrndt, J.; Exner, P.; Lotoreichik, V. 19 2014 Boundary value problems, Weyl functions, and differential operators. Zbl 1457.47001Behrndt, Jussi; Hassi, Seppo; de Snoo, Henk 18 2020 Bounds on the non-real spectrum of differential operators with indefinite weights. Zbl 1281.47024Behrndt, Jussi; Philipp, Friedrich; Trunk, Carsten 18 2013 Square-integrable solutions and Weyl functions for singular canonical systems. Zbl 1232.34037Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk; Wietsma, Rudi 18 2011 On the negative squares of indefinite Sturm–Liouville operators. Zbl 1123.47033Behrndt, Jussi; Trunk, Carsten 18 2007 Dirichlet-to-Neumann maps on bounded Lipschitz domains. Zbl 1344.35032Behrndt, J.; ter Elst, A. F. M. 17 2015 An inverse problem of Calderón type with partial data. Zbl 1244.35164Behrndt, Jussi; Rohleder, Jonathan 17 2012 Elliptic differential operators on Lipschitz domains and abstract boundary value problems. Zbl 1300.35026Behrndt, Jussi; Micheler, Till 16 2014 Non-real eigenvalues of singular indefinite Sturm-Liouville operators. Zbl 1182.47036Behrndt, Jussi; Katatbeh, Qutaibeh; Trunk, Carsten 16 2009 Compact and finite rank perturbations of closed linear operators and relations in Hilbert spaces. Zbl 1194.47016Azizov, Tomas Ya.; Behrndt, Jussi; Jonas, Peter; Trunk, Carsten 16 2009 On the number of negative eigenvalues of the Laplacian on a metric graph. Zbl 1204.81076Behrndt, Jussi; Luger, Annemarie 14 2010 Scattering theory for open quantum systems with finite rank coupling. Zbl 1144.81480Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 14 2007 On the spectral theory of singular indefinite Sturm-Liouville operators. Zbl 1126.34052Behrndt, Jussi 14 2007 Spectral estimates for resolvent differences of self-adjoint elliptic operators. Zbl 1311.47059Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir 13 2013 Dirac structures and their composition on Hilbert spaces. Zbl 1209.47016Kurula, Mikael; Zwart, Hans; van der Schaft, Arjan; Behrndt, Jussi 13 2010 Approximation of Schrödinger operators with \(\delta\)-interactions supported on hypersurfaces. Zbl 1376.35010Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 12 2017 Spectral analysis of selfadjoint elliptic differential operators, Dirichlet-to-Neumann maps, and abstract Weyl functions. Zbl 1344.47018Behrndt, Jussi; Rohleder, Jonathan 12 2015 Trace formulae and singular values of resolvent power differences of self-adjoint elliptic operators. Zbl 1296.35097Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir 12 2013 Spectral points of definite type and type \(\pi \) for linear operators and relations in Krein spaces. Zbl 1220.47052Azizov, T. Ya.; Behrndt, J.; Jonas, P.; Trunk, C. 12 2011 Boundary value problems with local generalized Nevanlinna functions in the boundary condition. Zbl 1121.47029Behrndt, Jussi; Jonas, Peter 12 2006 Scattering matrices and Dirichlet-to-Neumann maps. Zbl 1376.35011Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 11 2017 Spectral analysis of singular ordinary differential operators with indefinite weights. Zbl 1197.34167Behrndt, Jussi; Philipp, Friedrich 11 2010 On the spectral properties of Dirac operators with electrostatic \(\delta\)-shell interactions. Zbl 1382.81095Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 10 2018 A remark on Schatten-von Neumann properties of resolvent differences of generalized Robin Laplacians on bounded domains. Zbl 1198.35159Behrndt, Jussi; Langer, Matthias; Lobanov, Igor; Lotoreichik, Vladimir; Popov, Igor Yu. 10 2010 Sturm–Liouville operators with indefinite weight functions and eigenvalue depending boundary conditions. Zbl 1099.34018Behrndt, Jussi; Trunk, Carsten 10 2006 Estimates on the non-real eigenvalues of regular indefinite Sturm-Liouville problems. Zbl 1325.34098Behrndt, Jussi; Chen, Shaozhu; Philipp, Friedrich; Qi, Jiangang 9 2014 Monotone convergence theorems for semi-bounded operators and forms with applications. Zbl 1200.47022Behrndt, Jussi; Hassi, Seppo; de Snoo, Henk; Wietsma, Rudi 9 2010 Boundary relations, unitary colligations, and functional models. Zbl 1186.47007Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk 9 2009 Boundary value problems with eigenvalue depending boundary conditions. Zbl 1177.47088Behrndt, Jussi 9 2009 On compact perturbations of locally definitizable selfadjoint relations in Krein spaces. Zbl 1083.47030Behrndt, Jussi; Jonas, Peter 9 2005 On Dirac operators in \(\mathbb{R}^3\) with electrostatic and Lorentz scalar \(\delta\)-shell interactions. Zbl 1423.81072Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 8 2019 Spectral asymptotics for resolvent differences of elliptic operators with \(\delta\) and \(\delta^{'}\)-interactions on hypersurfaces. Zbl 1353.47090Behrndt, Jussi; Grubb, Gerd; Langer, Matthias; Lotoreichik, Vladimir 8 2015 Elliptic boundary value problems with \(\lambda \)-dependent boundary conditions. Zbl 1203.35086Behrndt, Jussi 8 2010 Functional models for Nevanlinna families. Zbl 1183.47004Behrndt, Jussi; Hassi, Seppo; de Snoo, Henk 8 2008 On finite rank perturbations of definitizable operators. Zbl 1127.47034Azizov, Tomas Ya.; Behrndt, Jussi; Trunk, Carsten 8 2008 Finite rank perturbations of locally definitizable self-adjoint operators in Krein spaces. Zbl 1164.47042Behrndt, Jussi 8 2007 An analytic characterization of the eigenvalues of self-adjoint extensions. Zbl 1114.47037Behrndt, Jussi; Luger, Annemarie 8 2007 Quasi boundary triples and semi-bounded self-adjoint extensions. Zbl 1386.35290Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir; Rohleder, Jonathan 7 2017 A realization theorem for generalized Nevanlinna families. Zbl 1255.46011Behrndt, J.; Derkach, V. A.; Hassi, S.; de Snoo, H. S. V. 7 2011 Spectral theory for Schrödinger operators with \(\delta\)-interactions supported on curves in \(\mathbb {R}^3\). Zbl 1378.81026Behrndt, Jussi; Frank, Rupert L.; Kühn, Christian; Lotoreichik, Vladimir; Rohleder, Jonathan 6 2017 Titchmarsh-Weyl theory for Schrödinger operators on unbounded domains. Zbl 1381.35025Behrndt, Jussi; Rohleder, Jonathan 6 2016 On finite rank perturbations of selfadjoint operators in Krein spaces and eigenvalues in spectral gaps. Zbl 1348.47009Behrndt, Jussi; Möws, Roland; Trunk, Carsten 6 2014 On the adjoint of a symmetric operator. Zbl 1209.47010Behrndt, Jussi; Langer, Matthias 6 2010 Finite rank perturbations, scattering matrices and inverse problems. Zbl 1192.47008Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 6 2010 On domains of powers of linear operators and finite rank perturbations. Zbl 1177.47004Azizov, Tomas Ya.; Behrndt, Jussi; Philipp, Friedrich; Trunk, Carsten 6 2009 Spectral enclosures for non-self-adjoint extensions of symmetric operators. Zbl 06912916Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir; Rohleder, Jonathan 5 2018 Dirichlet-to-Neumann maps, abstract Weyl-Titchmarsh \(M\)-functions, and a generalized index of unbounded meromorphic operator-valued functions. Zbl 1350.47009Behrndt, Jussi; Gesztesy, Fritz; Holden, Helge; Nichols, Roger 5 2016 On the negative squares of a class of self-adjoint extensions in Krein spaces. Zbl 1275.47084Behrndt, Jussi; Luger, Annemarie; Trunk, Carsten 5 2013 Eigenvalue estimates for singular left-definite Sturm-Liouville operators. Zbl 1235.34225Behrndt, Jussi; Möws, Roland; Trunk, Carsten 5 2011 Accumulation of complex eigenvalues of indefinite Sturm-Liouville operators. Zbl 1140.81375Behrndt, Jussi; Katatbeh, Qutaibeh; Trunk, Carsten 5 2008 On Dirac operators with electrostatic \(\delta \)-shell interactions of critical strength. Zbl 1437.35595Behrndt, Jussi; Holzmann, Markus 4 2020 Spectral bounds for singular indefinite Sturm-Liouville operators with \(L^1\)-potentials. Zbl 1396.34052Behrndt, Jussi; Schmitz, Philipp; Trunk, Carsten 4 2018 The effect of finite rank perturbations on Jordan chains of linear operators. Zbl 1412.47007Behrndt, Jussi; Leben, Leslie; Martínez Pería, Francisco; Trunk, Carsten 4 2015 On Kreĭn’s formula. Zbl 1179.47023Behrndt, Jussi; De Snoo, Henk 4 2009 Generalized resolvents of a class of symmetric operators in Krein spaces. Zbl 1138.47030Behrndt, Jussi; Luger, Annemarie; Trunk, Carsten 4 2007 Properties of the spectrum of type \(\pi_+\) and type \(\pi_-\) of self-adjoint operators in Krein spaces. Zbl 1118.47028Behrndt, Jussi; Philipp, Friedrich; Trunk, Carsten 4 2006 Evolution of Aharonov-Berry superoscillations in Dirac \(\delta\)-potential. Zbl 1423.81063Behrndt, Jussi; Colombo, Fabrizio; Schlosser, Peter 3 2019 The Krein-von Neumann realization of perturbed Laplacians on bounded Lipschitz domains. Zbl 1372.35200Behrndt, Jussi; Gesztesy, Fritz; Micheler, Till; Mitrea, Marius 3 2016 Sharp eigenvalue estimates for rank one perturbations of nonnegative operators in Krein spaces. Zbl 1341.47045Behrndt, Jussi; Leben, Leslie; Martínez Pería, Francisco; Möws, Roland; Trunk, Carsten 3 2016 An open problem: accumulation of nonreal eigenvalues of indefinite Sturm-Liouville operators. Zbl 1283.47052Behrndt, Jussi 3 2013 Spectral theory of elliptic differential operators with indefinite weights. Zbl 1400.35085Behrndt, Jussi 3 2013 Linear fractional transformations of Nevanlinna functions associated with a nonnegative operator. Zbl 1311.30033Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk; Wietsma, Rudi; Winkler, Henrik 3 2013 Realization of nonstrict matrix Nevanlinna functions as Weyl functions of symmetric operators in Pontryagin spaces. Zbl 1166.47035Behrndt, Jussi 3 2009 Two-dimensional Dirac operators with singular interactions supported on closed curves. Zbl 1446.35155Behrndt, Jussi; Holzmann, Markus; Ourmières-Bonafos, Thomas; Pankrashkin, Konstantin 2 2020 Spectral bounds for indefinite singular Sturm-Liouville operators with uniformly locally integrable potentials. Zbl 1416.34019Behrndt, Jussi; Schmitz, Philipp; Trunk, Carsten 2 2019 An indefinite Laplacian on a rectangle. Zbl 1402.35184Behrndt, Jussi; Krejčiřík, David 2 2018 Coupling of symmetric operators and the third Green identity. Zbl 06860129Behrndt, Jussi; Derkach, Vladimir; Gesztesy, Fritz; Mitrea, Marius 2 2018 Boundary triples for Schrödinger operators with singular interactions on hypersurfaces. Zbl 1353.47043Behrndt, J.; Langer, M.; Lotoreichik, V. 2 2016 Antitonicity of the inverse for selfadjoint matrices, operators, and relations. Zbl 1300.47010Behrndt, Jussi; Hassi, Seppo; Wietsma, Hendrik; de Snoo, Henk 2 2014 Limit properties of monotone matrix functions. Zbl 1235.26008Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk; Wietsma, Rudi 2 2012 Trace formulae for dissipative and coupled scattering systems. Zbl 1175.47008Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 2 2009 Boundary relations and generalized resolvents of symmetric operators in Krein spaces. Zbl 1160.47034Behrndt, Jussi; Kreusler, Hans-Christian 2 2007 A class of abstract boundary value problems with locally definitizable functions in the boundary condition. Zbl 1127.47035Behrndt, Jussi 2 2006 The Landau Hamiltonian with \(\delta \)-potentials supported on curves. Zbl 07265626Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 1 2020 Self-adjoint Dirac operators on domains in \(\mathbb{R}^3\). Zbl 1454.81079Behrndt, Jussi; Holzmann, Markus; Mas, Albert 1 2020 Limiting absorption principle and scattering matrix for Dirac operators with \(\delta\)-shell interactions. Zbl 1439.81037Behrndt, Jussi; Holzmann, Markus; Mantile, Andrea; Posilicano, Andrea 1 2020 Finite rank perturbations in Pontryagin spaces and a Sturm-Liouville problem with \(\lambda\)-rational boundary conditions. Zbl 06984767Behrndt, Jussi; Philipp, Friedrich 1 2018 Spectral shift functions and Dirichlet-to-Neumann maps. Zbl 1417.35016Behrndt, Jussi; Gesztesy, Fritz; Nakamura, Shu 1 2018 Eigenvalue inequalities for Schrödinger operators on unbounded Lipschitz domains. Zbl 1423.35087Behrndt, Jussi; Rohleder, Jonathan; Stadler, Simon 1 2018 On the index of meromorphic operator-valued functions and some applications. Zbl 1441.47012Behrndt, Jussi; Gesztesy, Fritz; Holden, Helge; Nichols, Roger 1 2017 The Dirichlet-to-Neumann map for Schrödinger operators with complex potentials. Zbl 1372.35095Behrndt, Jussi; ter Elst, A. F. M. 1 2017 Mini-workshop: Boundary value problems and spectral geometry. Abstracts from the mini-workshop held January 1–7, 2012. Zbl 1349.00057Behrndt, Jussi (ed.); Pankrashkin, Konstantin (ed.); Post, Olaf (ed.) 1 2012 Recent advances in operator theory in Hilbert and Krein spaces. Papers of the 7th workshop on operator theory in Krein spaces and spectral analysis, TU Berlin, Germany, December 13–16, 2007. Dedicated to Peter Jonas. Zbl 1181.47004Behrndt, Jussi (ed.); Förster, Karl-Heinz (ed.); Trunk, Carsten (ed.) 1 2010 On Eisenbud’s and Wigner’s \(R\)-matrix: A general approach. Zbl 1158.34052Behrndt, Jussi; Neidhardt, Hagen; Racec, Elena R.; Racec, Paul N.; Wulf, Ulrich 1 2008 On generalized resolvents of symmetric operators of defect one with finitely many negative squares. Zbl 1107.47025Behrndt, Jussi; Trunk, Carsten 1 2005 Boundary value problems, Weyl functions, and differential operators. Zbl 1457.47001Behrndt, Jussi; Hassi, Seppo; de Snoo, Henk 18 2020 On Dirac operators with electrostatic \(\delta \)-shell interactions of critical strength. Zbl 1437.35595Behrndt, Jussi; Holzmann, Markus 4 2020 Two-dimensional Dirac operators with singular interactions supported on closed curves. Zbl 1446.35155Behrndt, Jussi; Holzmann, Markus; Ourmières-Bonafos, Thomas; Pankrashkin, Konstantin 2 2020 The Landau Hamiltonian with \(\delta \)-potentials supported on curves. Zbl 07265626Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 1 2020 Self-adjoint Dirac operators on domains in \(\mathbb{R}^3\). Zbl 1454.81079Behrndt, Jussi; Holzmann, Markus; Mas, Albert 1 2020 Limiting absorption principle and scattering matrix for Dirac operators with \(\delta\)-shell interactions. Zbl 1439.81037Behrndt, Jussi; Holzmann, Markus; Mantile, Andrea; Posilicano, Andrea 1 2020 On Dirac operators in \(\mathbb{R}^3\) with electrostatic and Lorentz scalar \(\delta\)-shell interactions. Zbl 1423.81072Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 8 2019 Evolution of Aharonov-Berry superoscillations in Dirac \(\delta\)-potential. Zbl 1423.81063Behrndt, Jussi; Colombo, Fabrizio; Schlosser, Peter 3 2019 Spectral bounds for indefinite singular Sturm-Liouville operators with uniformly locally integrable potentials. Zbl 1416.34019Behrndt, Jussi; Schmitz, Philipp; Trunk, Carsten 2 2019 On the spectral properties of Dirac operators with electrostatic \(\delta\)-shell interactions. Zbl 1382.81095Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 10 2018 Spectral enclosures for non-self-adjoint extensions of symmetric operators. Zbl 06912916Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir; Rohleder, Jonathan 5 2018 Spectral bounds for singular indefinite Sturm-Liouville operators with \(L^1\)-potentials. Zbl 1396.34052Behrndt, Jussi; Schmitz, Philipp; Trunk, Carsten 4 2018 An indefinite Laplacian on a rectangle. Zbl 1402.35184Behrndt, Jussi; Krejčiřík, David 2 2018 Coupling of symmetric operators and the third Green identity. Zbl 06860129Behrndt, Jussi; Derkach, Vladimir; Gesztesy, Fritz; Mitrea, Marius 2 2018 Finite rank perturbations in Pontryagin spaces and a Sturm-Liouville problem with \(\lambda\)-rational boundary conditions. Zbl 06984767Behrndt, Jussi; Philipp, Friedrich 1 2018 Spectral shift functions and Dirichlet-to-Neumann maps. Zbl 1417.35016Behrndt, Jussi; Gesztesy, Fritz; Nakamura, Shu 1 2018 Eigenvalue inequalities for Schrödinger operators on unbounded Lipschitz domains. Zbl 1423.35087Behrndt, Jussi; Rohleder, Jonathan; Stadler, Simon 1 2018 Approximation of Schrödinger operators with \(\delta\)-interactions supported on hypersurfaces. Zbl 1376.35010Behrndt, Jussi; Exner, Pavel; Holzmann, Markus; Lotoreichik, Vladimir 12 2017 Scattering matrices and Dirichlet-to-Neumann maps. Zbl 1376.35011Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 11 2017 Quasi boundary triples and semi-bounded self-adjoint extensions. Zbl 1386.35290Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir; Rohleder, Jonathan 7 2017 Spectral theory for Schrödinger operators with \(\delta\)-interactions supported on curves in \(\mathbb {R}^3\). Zbl 1378.81026Behrndt, Jussi; Frank, Rupert L.; Kühn, Christian; Lotoreichik, Vladimir; Rohleder, Jonathan 6 2017 On the index of meromorphic operator-valued functions and some applications. Zbl 1441.47012Behrndt, Jussi; Gesztesy, Fritz; Holden, Helge; Nichols, Roger 1 2017 The Dirichlet-to-Neumann map for Schrödinger operators with complex potentials. Zbl 1372.35095Behrndt, Jussi; ter Elst, A. F. M. 1 2017 Titchmarsh-Weyl theory for Schrödinger operators on unbounded domains. Zbl 1381.35025Behrndt, Jussi; Rohleder, Jonathan 6 2016 Dirichlet-to-Neumann maps, abstract Weyl-Titchmarsh \(M\)-functions, and a generalized index of unbounded meromorphic operator-valued functions. Zbl 1350.47009Behrndt, Jussi; Gesztesy, Fritz; Holden, Helge; Nichols, Roger 5 2016 The Krein-von Neumann realization of perturbed Laplacians on bounded Lipschitz domains. Zbl 1372.35200Behrndt, Jussi; Gesztesy, Fritz; Micheler, Till; Mitrea, Marius 3 2016 Sharp eigenvalue estimates for rank one perturbations of nonnegative operators in Krein spaces. Zbl 1341.47045Behrndt, Jussi; Leben, Leslie; Martínez Pería, Francisco; Möws, Roland; Trunk, Carsten 3 2016 Boundary triples for Schrödinger operators with singular interactions on hypersurfaces. Zbl 1353.47043Behrndt, J.; Langer, M.; Lotoreichik, V. 2 2016 Dirichlet-to-Neumann maps on bounded Lipschitz domains. Zbl 1344.35032Behrndt, J.; ter Elst, A. F. M. 17 2015 Spectral analysis of selfadjoint elliptic differential operators, Dirichlet-to-Neumann maps, and abstract Weyl functions. Zbl 1344.47018Behrndt, Jussi; Rohleder, Jonathan 12 2015 Spectral asymptotics for resolvent differences of elliptic operators with \(\delta\) and \(\delta^{'}\)-interactions on hypersurfaces. Zbl 1353.47090Behrndt, Jussi; Grubb, Gerd; Langer, Matthias; Lotoreichik, Vladimir 8 2015 The effect of finite rank perturbations on Jordan chains of linear operators. Zbl 1412.47007Behrndt, Jussi; Leben, Leslie; Martínez Pería, Francisco; Trunk, Carsten 4 2015 Schrödinger operators with \(\delta\)- and \(\delta'\)-interactions on Lipschitz surfaces and chromatic numbers of associated partitions. Zbl 1326.47050Behrndt, Jussi; Exner, Pavel; Lotoreichik, Vladimir 20 2014 Schrödinger operators with \(\delta\)-interactions supported on conical surfaces. Zbl 1297.35154Behrndt, J.; Exner, P.; Lotoreichik, V. 19 2014 Elliptic differential operators on Lipschitz domains and abstract boundary value problems. Zbl 1300.35026Behrndt, Jussi; Micheler, Till 16 2014 Estimates on the non-real eigenvalues of regular indefinite Sturm-Liouville problems. Zbl 1325.34098Behrndt, Jussi; Chen, Shaozhu; Philipp, Friedrich; Qi, Jiangang 9 2014 On finite rank perturbations of selfadjoint operators in Krein spaces and eigenvalues in spectral gaps. Zbl 1348.47009Behrndt, Jussi; Möws, Roland; Trunk, Carsten 6 2014 Antitonicity of the inverse for selfadjoint matrices, operators, and relations. Zbl 1300.47010Behrndt, Jussi; Hassi, Seppo; Wietsma, Hendrik; de Snoo, Henk 2 2014 Schrödinger operators with \(\delta\) and \(\delta^{\prime}\)-potentials supported on hypersurfaces. Zbl 1275.81027Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir 49 2013 Bounds on the non-real spectrum of differential operators with indefinite weights. Zbl 1281.47024Behrndt, Jussi; Philipp, Friedrich; Trunk, Carsten 18 2013 Spectral estimates for resolvent differences of self-adjoint elliptic operators. Zbl 1311.47059Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir 13 2013 Trace formulae and singular values of resolvent power differences of self-adjoint elliptic operators. Zbl 1296.35097Behrndt, Jussi; Langer, Matthias; Lotoreichik, Vladimir 12 2013 On the negative squares of a class of self-adjoint extensions in Krein spaces. Zbl 1275.47084Behrndt, Jussi; Luger, Annemarie; Trunk, Carsten 5 2013 An open problem: accumulation of nonreal eigenvalues of indefinite Sturm-Liouville operators. Zbl 1283.47052Behrndt, Jussi 3 2013 Spectral theory of elliptic differential operators with indefinite weights. Zbl 1400.35085Behrndt, Jussi 3 2013 Linear fractional transformations of Nevanlinna functions associated with a nonnegative operator. Zbl 1311.30033Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk; Wietsma, Rudi; Winkler, Henrik 3 2013 Elliptic operators, Dirichlet-to-Neumann maps and quasi boundary triples. Zbl 1331.47067Behrndt, Jussi; Langer, Matthias 32 2012 An inverse problem of Calderón type with partial data. Zbl 1244.35164Behrndt, Jussi; Rohleder, Jonathan 17 2012 Limit properties of monotone matrix functions. Zbl 1235.26008Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk; Wietsma, Rudi 2 2012 Mini-workshop: Boundary value problems and spectral geometry. Abstracts from the mini-workshop held January 1–7, 2012. Zbl 1349.00057Behrndt, Jussi (ed.); Pankrashkin, Konstantin (ed.); Post, Olaf (ed.) 1 2012 Square-integrable solutions and Weyl functions for singular canonical systems. Zbl 1232.34037Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk; Wietsma, Rudi 18 2011 Spectral points of definite type and type \(\pi \) for linear operators and relations in Krein spaces. Zbl 1220.47052Azizov, T. Ya.; Behrndt, J.; Jonas, P.; Trunk, C. 12 2011 A realization theorem for generalized Nevanlinna families. Zbl 1255.46011Behrndt, J.; Derkach, V. A.; Hassi, S.; de Snoo, H. S. V. 7 2011 Eigenvalue estimates for singular left-definite Sturm-Liouville operators. Zbl 1235.34225Behrndt, Jussi; Möws, Roland; Trunk, Carsten 5 2011 On the number of negative eigenvalues of the Laplacian on a metric graph. Zbl 1204.81076Behrndt, Jussi; Luger, Annemarie 14 2010 Dirac structures and their composition on Hilbert spaces. Zbl 1209.47016Kurula, Mikael; Zwart, Hans; van der Schaft, Arjan; Behrndt, Jussi 13 2010 Spectral analysis of singular ordinary differential operators with indefinite weights. Zbl 1197.34167Behrndt, Jussi; Philipp, Friedrich 11 2010 A remark on Schatten-von Neumann properties of resolvent differences of generalized Robin Laplacians on bounded domains. Zbl 1198.35159Behrndt, Jussi; Langer, Matthias; Lobanov, Igor; Lotoreichik, Vladimir; Popov, Igor Yu. 10 2010 Monotone convergence theorems for semi-bounded operators and forms with applications. Zbl 1200.47022Behrndt, Jussi; Hassi, Seppo; de Snoo, Henk; Wietsma, Rudi 9 2010 Elliptic boundary value problems with \(\lambda \)-dependent boundary conditions. Zbl 1203.35086Behrndt, Jussi 8 2010 On the adjoint of a symmetric operator. Zbl 1209.47010Behrndt, Jussi; Langer, Matthias 6 2010 Finite rank perturbations, scattering matrices and inverse problems. Zbl 1192.47008Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 6 2010 Recent advances in operator theory in Hilbert and Krein spaces. Papers of the 7th workshop on operator theory in Krein spaces and spectral analysis, TU Berlin, Germany, December 13–16, 2007. Dedicated to Peter Jonas. Zbl 1181.47004Behrndt, Jussi (ed.); Förster, Karl-Heinz (ed.); Trunk, Carsten (ed.) 1 2010 Generalized \(Q\)-functions and Dirichlet-to-Neumann maps for elliptic differential operators. Zbl 1179.47041Alpay, Daniel; Behrndt, Jussi 20 2009 Non-real eigenvalues of singular indefinite Sturm-Liouville operators. Zbl 1182.47036Behrndt, Jussi; Katatbeh, Qutaibeh; Trunk, Carsten 16 2009 Compact and finite rank perturbations of closed linear operators and relations in Hilbert spaces. Zbl 1194.47016Azizov, Tomas Ya.; Behrndt, Jussi; Jonas, Peter; Trunk, Carsten 16 2009 Boundary relations, unitary colligations, and functional models. Zbl 1186.47007Behrndt, Jussi; Hassi, Seppo; De Snoo, Henk 9 2009 Boundary value problems with eigenvalue depending boundary conditions. Zbl 1177.47088Behrndt, Jussi 9 2009 On domains of powers of linear operators and finite rank perturbations. Zbl 1177.47004Azizov, Tomas Ya.; Behrndt, Jussi; Philipp, Friedrich; Trunk, Carsten 6 2009 On Kreĭn’s formula. Zbl 1179.47023Behrndt, Jussi; De Snoo, Henk 4 2009 Realization of nonstrict matrix Nevanlinna functions as Weyl functions of symmetric operators in Pontryagin spaces. Zbl 1166.47035Behrndt, Jussi 3 2009 Trace formulae for dissipative and coupled scattering systems. Zbl 1175.47008Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 2 2009 Scattering matrices and Weyl functions. Zbl 1161.47008Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 38 2008 Functional models for Nevanlinna families. Zbl 1183.47004Behrndt, Jussi; Hassi, Seppo; de Snoo, Henk 8 2008 On finite rank perturbations of definitizable operators. Zbl 1127.47034Azizov, Tomas Ya.; Behrndt, Jussi; Trunk, Carsten 8 2008 Accumulation of complex eigenvalues of indefinite Sturm-Liouville operators. Zbl 1140.81375Behrndt, Jussi; Katatbeh, Qutaibeh; Trunk, Carsten 5 2008 On Eisenbud’s and Wigner’s \(R\)-matrix: A general approach. Zbl 1158.34052Behrndt, Jussi; Neidhardt, Hagen; Racec, Elena R.; Racec, Paul N.; Wulf, Ulrich 1 2008 Boundary value problems for elliptic partial differential operators on bounded domains. Zbl 1132.47038Behrndt, Jussi; Langer, Matthias 58 2007 On the negative squares of indefinite Sturm–Liouville operators. Zbl 1123.47033Behrndt, Jussi; Trunk, Carsten 18 2007 Scattering theory for open quantum systems with finite rank coupling. Zbl 1144.81480Behrndt, Jussi; Malamud, Mark M.; Neidhardt, Hagen 14 2007 On the spectral theory of singular indefinite Sturm-Liouville operators. Zbl 1126.34052Behrndt, Jussi 14 2007 Finite rank perturbations of locally definitizable self-adjoint operators in Krein spaces. Zbl 1164.47042Behrndt, Jussi 8 2007 An analytic characterization of the eigenvalues of self-adjoint extensions. Zbl 1114.47037Behrndt, Jussi; Luger, Annemarie 8 2007 Generalized resolvents of a class of symmetric operators in Krein spaces. Zbl 1138.47030Behrndt, Jussi; Luger, Annemarie; Trunk, Carsten 4 2007 Boundary relations and generalized resolvents of symmetric operators in Krein spaces. Zbl 1160.47034Behrndt, Jussi; Kreusler, Hans-Christian 2 2007 Boundary value problems with local generalized Nevanlinna functions in the boundary condition. Zbl 1121.47029Behrndt, Jussi; Jonas, Peter 12 2006 Sturm–Liouville operators with indefinite weight functions and eigenvalue depending boundary conditions. Zbl 1099.34018Behrndt, Jussi; Trunk, Carsten 10 2006 Properties of the spectrum of type \(\pi_+\) and type \(\pi_-\) of self-adjoint operators in Krein spaces. Zbl 1118.47028Behrndt, Jussi; Philipp, Friedrich; Trunk, Carsten 4 2006 A class of abstract boundary value problems with locally definitizable functions in the boundary condition. Zbl 1127.47035Behrndt, Jussi 2 2006 On compact perturbations of locally definitizable selfadjoint relations in Krein spaces. Zbl 1083.47030Behrndt, Jussi; Jonas, Peter 9 2005 On generalized resolvents of symmetric operators of defect one with finitely many negative squares. Zbl 1107.47025Behrndt, Jussi; Trunk, Carsten 1 2005 all cited Publications top 5 cited Publications all top 5 Cited by 369 Authors 58 Behrndt, Jussi 28 Lotoreichik, Vladimir 19 Exner, Pavel 19 Trunk, Carsten 15 Malamud, Mark M. 15 Pankrashkin, Konstantin 14 Gesztesy, Fritz 12 Posilicano, Andrea 11 Hassi, Seppo 10 de Snoo, Hendrik S. V. 10 Neidhardt, Hagen 10 Rohleder, Jonathan 9 Holzmann, Markus 9 Langer, Matthias 9 Mantile, Andrea 9 Ourmiéres-Bonafos, Thomas 9 Popov, Igor’ Yur’evich 8 Philipp, Friedrich 8 ter Elst, Antonius Frederik Maria 7 Derkach, Vladimir Alexandrovich 7 Grubb, Gerd 7 Mitrea, Marius 7 Mogilevskii, Vadim 7 Shi, Yuming 6 Kurula, Mikael 6 Qi, Jiangang 5 Azizov, Tomas Ya. 5 Kerner, Joachim 5 Krejčiřík, David 5 Naboko, Serguei N. 5 Nichols, Roger 5 Weder, Ricardo A. 5 Winkler, Henrik 5 Wood, Ian Geoffrey 4 Colombo, Fabrizio 4 Cox, Graham 4 Dauge, Monique 4 Dijksma, Aad 4 Kostenko, Aleksey S. 4 Latushkin, Yuri 4 Luger, Annemarie 4 Mas, Albert 4 Möws, Roland 4 Sini, Mourad 3 Albeverio, Sergio A. 3 Arendt, Wolfgang 3 Ball, Joseph Anthony 3 Boitsev, A. A. 3 Brasche, Johannes Friedemann 3 Brown, B. Malcolm 3 Cacciapuoti, Claudio 3 Chen, Shaozhu 3 Ćurgus, Branko 3 Denk, Robert 3 Gao, Chenghua 3 Granovskyi, Yaroslav I. 3 Jex, Michal 3 Jones, Christopher K. R. T. 3 Jørgensen, Palle E. T. 3 Khrabustovskyi, Andrii 3 Kondej, Sylwia 3 Lampart, Jonas 3 Langer, Heinz 3 Liu, Yan 3 Martínez Pería, Francisco D. 3 Pizzichillo, Fabio 3 Rabinovich, Vladimir Samuilovich 3 Sakhnovich, Alexander L. 3 Silva, Luis O. 3 Staffans, Olof Johan 3 Sukhtaiev, Selim 3 Sukhtayev, Alim 3 Wietsma, Hendrik Luit 3 Wietsma, Rudi 3 Xie, Bing 3 Xu, Guixin 3 Zinchenko, Maxim 3 Zwart, Hans J. 2 Aharonov, Yakir 2 Alazard, Daniel 2 Ashbaugh, Mark S. 2 Baidiuk, Dmytro V. 2 Benharrat, Mohammed 2 Bolte, Jens 2 Brugnoli, Andrea 2 Bruneau, Vincent 2 Cardone, Giuseppe 2 Carlone, Raffaele 2 Cherednichenko, Kirill D. 2 Cuenin, Jean-Claude 2 Dittrich, Jaroslav 2 Dobosevych, Oles 2 Eckhardt, Jonathan 2 Egger, Sebastian 2 Fermi, Davide 2 Hryniv, Rostyslav O. 2 Hussein, Amru 2 Ibrogimov, Orif O. 2 Jonas, Peter 2 Katatbeh, Qutaibeh Deeb ...and 269 more Authors all top 5 Cited in 106 Serials 26 Journal of Mathematical Analysis and Applications 26 Journal of Differential Equations 23 Integral Equations and Operator Theory 20 Journal of Functional Analysis 19 Journal of Mathematical Physics 18 Complex Analysis and Operator Theory 14 Mathematische Nachrichten 11 Annales Henri Poincaré 10 Linear Algebra and its Applications 7 Advances in Mathematics 6 Journal d’Analyse Mathématique 6 Letters in Mathematical Physics 6 Reviews in Mathematical Physics 6 Proceedings of the American Mathematical Society 6 Journal of Evolution Equations 6 Journal of Spectral Theory 5 Russian Journal of Mathematical Physics 4 Applicable Analysis 4 Mathematical Notes 4 Opuscula Mathematica 4 Operators and Matrices 3 Communications in Mathematical Physics 3 Physics Letters. A 3 Reports on Mathematical Physics 3 Mathematische Annalen 3 Results in Mathematics 3 Transactions of the American Mathematical Society 3 Communications in Partial Differential Equations 3 Journal de Mathématiques Pures et Appliquées. Neuvième Série 3 Journal of Mathematical Sciences (New York) 3 Mathematical Physics, Analysis and Geometry 3 Complex Variables and Elliptic Equations 3 Journal of Physics A: Mathematical and Theoretical 3 Discrete and Continuous Dynamical Systems. Series S 2 Inverse Problems 2 Journal of Computational Physics 2 Linear and Multilinear Algebra 2 Annali di Matematica Pura ed Applicata. Serie Quarta 2 Applied Mathematics and Computation 2 Mathematica Slovaca 2 Rendiconti di Matematica e delle sue Applicazioni. Serie VII 2 Applied Mathematical Modelling 2 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 2 Potential Analysis 2 Communications on Pure and Applied Analysis 2 Banach Journal of Mathematical Analysis 2 Quantum Studies: Mathematics and Foundations 2 Advances in Operator Theory 1 Analysis Mathematica 1 Israel Journal of Mathematics 1 Rocky Mountain Journal of Mathematics 1 Studia Mathematica 1 Journal of Geometry and Physics 1 Archiv der Mathematik 1 Functional Analysis and its Applications 1 Inventiones Mathematicae 1 Journal of Computational and Applied Mathematics 1 Journal of Optimization Theory and Applications 1 Memoirs of the American Mathematical Society 1 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 1 Quaestiones Mathematicae 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Semigroup Forum 1 Zeitschrift für Analysis und ihre Anwendungen 1 Acta Mathematica Hungarica 1 Acta Applicandae Mathematicae 1 Bulletin of the Iranian Mathematical Society 1 Physica D 1 Applied Mathematics Letters 1 Asymptotic Analysis 1 The Journal of Geometric Analysis 1 M\(^3\)AS. Mathematical Models & Methods in Applied Sciences 1 Expositiones Mathematicae 1 Indagationes Mathematicae. New Series 1 Turkish Journal of Mathematics 1 Journal of Convex Analysis 1 Journal of Difference Equations and Applications 1 Sbornik: Mathematics 1 Doklady Mathematics 1 European Series in Applied and Industrial Mathematics (ESAIM): Control, Optimization and Calculus of Variations 1 Abstract and Applied Analysis 1 Positivity 1 Lobachevskii Journal of Mathematics 1 Applied Mathematics E-Notes 1 Milan Journal of Mathematics 1 Central European Journal of Mathematics 1 Multiscale Modeling & Simulation 1 Journal of Function Spaces and Applications 1 International Journal of Geometric Methods in Modern Physics 1 Mediterranean Journal of Mathematics 1 Foundations of Physics 1 Boundary Value Problems 1 Proceedings of the Steklov Institute of Mathematics 1 Networks and Heterogeneous Media 1 Mathematical Modelling of Natural Phenomena 1 Analysis & PDE 1 Differential Equations and Applications 1 International Journal of Differential Equations 1 Annals of Functional Analysis 1 Symmetry ...and 6 more Serials all top 5 Cited in 38 Fields 238 Operator theory (47-XX) 146 Partial differential equations (35-XX) 100 Quantum theory (81-XX) 85 Ordinary differential equations (34-XX) 43 Functional analysis (46-XX) 16 Global analysis, analysis on manifolds (58-XX) 14 Functions of a complex variable (30-XX) 11 Difference and functional equations (39-XX) 10 Statistical mechanics, structure of matter (82-XX) 9 Dynamical systems and ergodic theory (37-XX) 9 Systems theory; control (93-XX) 7 Numerical analysis (65-XX) 7 Mechanics of deformable solids (74-XX) 7 Optics, electromagnetic theory (78-XX) 6 Linear and multilinear algebra; matrix theory (15-XX) 5 Harmonic analysis on Euclidean spaces (42-XX) 4 Real functions (26-XX) 4 Several complex variables and analytic spaces (32-XX) 4 Differential geometry (53-XX) 4 Mechanics of particles and systems (70-XX) 3 Combinatorics (05-XX) 3 Integral equations (45-XX) 3 Calculus of variations and optimal control; optimization (49-XX) 3 Fluid mechanics (76-XX) 3 Information and communication theory, circuits (94-XX) 2 Algebraic geometry (14-XX) 2 Abstract harmonic analysis (43-XX) 1 General and overarching topics; collections (00-XX) 1 History and biography (01-XX) 1 Nonassociative rings and algebras (17-XX) 1 Measure and integration (28-XX) 1 Special functions (33-XX) 1 Integral transforms, operational calculus (44-XX) 1 Manifolds and cell complexes (57-XX) 1 Probability theory and stochastic processes (60-XX) 1 Statistics (62-XX) 1 Computer science (68-XX) 1 Relativity and gravitational theory (83-XX) Citations by Year