List of publications of Professor Dr. Dr. h.c. mult. Heinz Langer (pages 3-16).
Contents
Editorial introduction / D. Alpay and B. Kirstein
Biographical material
List of publications of professor Dr. Dr. h.c. mult : Heinz Langer
Some pictures from the ceremony
Heinz Langer : pioneer of operator theory in indefinite inner product spaces / B. Kirstein
Papers
The inverse monodromy problem / D.Z. Arov and H. Dym
The bitangential matrix nevanlinna-pick interpolation problem revisited / J.A. Ball and V. Bolotnikov
Finite rank perturbations in pontryagin spaces and a sturm-liouville problem with ... -rational boundary conditions / J. Behrndt and F. Philipp
On unimodular transformations of conservative L-systems / S. Belyi, K.A. Makarov and E. Tsekanovskiĭ
Spectral theory of stationary random fields and their generalizations : a short historical survey / G. Berschneider and Z. Sasvári
Semicircular-like, and semicircular laws induced by certain C*-probability spaces over the finite adele ring ... / I. Cho and P.E.T. Jorgensen
On the asymptotic behaviour of the zeros of the solutions of a functional-differential equation with rescaling / G. Derfel, P.J. Grabner and R.F. Tichy
Rational q x q carathéodory functions and central non-negative hermitian measures / B. Fritzsche, B. Kirstein and C. Mädler
On the spectrum of an operator in truncated fock space / O.O. Ibrogimov and C. Tretter
Limit properties of eigenvalues in spectral gaps / S. Hassi, H.S.V. de Snoo and H. Winkler
Self-adjoint boundary conditions for the prolate spheroid differential operator / V. Katsnelson
An addendum to a paper by Li and Zhang / L. Klotz and C. Mädler
On accelerants and their analogs, and on the characterization of the rectangular weyl functions for dirac systems with locally square-integrable potentials on a semi-axis / A. Sakhnovich
Dirac equation : the stationary and dynamical scattering problems / L. Sakhnovich
Compressed resolvents, Q-functions and ho-resolvents in almost pontryagin spaces / H. de Snoo and H. Woracek
This volume, which is dedicated to Heinz Langer, includes biographical material and carefully selected papers. Heinz Langer has made fundamental contributions to operator theory. In particular, he has studied the domains of operator pencils and nonlinear eigenvalue problems, the theory of indefinite inner product spaces, operator theory in Pontryagin and Krein spaces, and applications to mathematical physics. His works include studies on and applications of Schur analysis in the indefinite setting, where the factorization theorems put forward by Krein and Langer for generalized Schur functions, and by Dijksma-Langer-Luger-Shondin, play a key role. The contributions in this volume reflect Heinz Langer's chief research interests and will appeal to a broad readership whose work involves operator theory. (source: Nielsen Book Data)9783319688480 20180521