Indefinite Inner Product Spaces, Schur Analysis, and Differential Equations

Part I. Biographical Material

1. List of Publications* of Professor Dr. Dr. h.c. mult. Heinz Langer
Daniel Alpay, Bernd Kirstein

2. Some Pictures from the Ceremony
Daniel Alpay, Bernd Kirstein

3. Heinz Langer – Pioneer of Operator Theory in Indefinite Inner Product Spaces
Bernd Kirstein

Part II. Papers

4. The Inverse Monodromy Problem
Damir Z. Arov, Harry Dym

5. The Bitangential Matrix Nevanlinna–Pick Interpolation Problem Revisited
Joseph A. Ball, Vladimir Bolotnikov

6. Finite Rank Perturbations in Pontryagin Spaces and a Sturm–Liouville Problem with λ-rational Boundary Conditions
Jussi Behrndt, Friedrich Philipp

7. On Unimodular Transformations of Conservative L-systems
S. Belyi, K. A. Makarov, E. Tsekanovskiĭ

8. Spectral Theory of Stationary Random Fields and their Generalizations. A Short Historical Survey
Georg Berschneider, Zoltán Sasvári

9. Semicircular-like, and Semicircular Laws Induced by Certain C

∗
-probability Spaces over the Finite Adele Ring A
ℚ

Ilwoo Cho, Palle E. T. Jorgensen

10. On the Asymptotic Behaviour of the Zeros of the Solutions of a Functional-differential Equation with Rescaling
Gregory Derfel, Peter J. Grabner, Robert F. Tichy

11. Rational q × q Carathéodory Functions and Central Non-negative Hermitian Measures
Bernd Fritzsche, Bernd Kirstein, Conrad Mädler

12. On the Spectrum of an Operator in Truncated Fock Space
Orif O. Ibrogimov, Christiane Tretter

13. Limit Properties of Eigenvalues in Spectral Gaps
Seppo Hassi, Henk Snoo, Henrik Winkler

14. Self-adjoint Boundary Conditions for the Prolate Spheroid Differential Operator
Victor Katsnelson

15. An Addendum to a Paper by Li and Zhang
Lutz Klotz, Conrad Mädler

16. 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
Alexander Sakhnovich

17. Dirac Equation: the Stationary and Dynamical Scattering Problems
Lev Sakhnovich

18. Compressed Resolvents, Q-functions and h
0-resolvents in Almost Pontryagin Spaces
Henk Snoo, Harald Woracek

19. Dissymmetrising Inner Product Spaces
Franciszek Hugon Szafraniec

Keywords: Mathematics, Operator Theory, Functional Analysis, Systems Theory, Control