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Heinz Langer and his Work

  • Aad Dijksma
  • Israel Gohberg

Abstract

This volume is dedicated to Professor Heinz Langer to honor him for his outstanding contributions to mathematics. His results in spectral analysis and its applications, in particular in spaces with an indefinite metric, are fundamental. Five main themes emerge in Heinz Langer’s work, some of them are closely connected or have much in common:
  1. (1)

    Spectral theory of operators in spaces with indefinite inner product.

     
  2. (2)

    Pencils of linear operators (nonlinear eigenvalue problems).

     
  3. (3)

    Extension theory of operators in spaces with indefinite inner product.

     
  4. (4)

    Block operator matrices.

     
  5. (5)

    One-dimensional Markov processes.

     

Keywords

Spectral Function Invariant Subspace Selfadjoint Operator Selfadjoint Extension Pontryagin Space 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser Verlag AG 2008

Authors and Affiliations

  • Aad Dijksma
  • Israel Gohberg

There are no affiliations available

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