Matthias Langer

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Matthias Langer

Dr

 https://orcid.org/0000-0001-8813-7914

  • United Kingdom

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  • 2017

    Trace formulae for Schrödinger operators with singular interactions

    Behrndt, J., Langer, M. & Lotoreichik, V., 31 May 2017, Functional Analysis and Operator Theory for Quantum Physics: The Pavel Exner Anniversary Volume. Dittrich, J., Kovarik, H. & Laptev, A. (eds.). Switzerland, p. 129-152 24 p. (EMS Series of Congress Reports; vol. 12).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed) › peer-review

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    68 Downloads (Pure)
  • 2012

    Elliptic operators, Dirichlet-to-Neumann maps and quasi boundary triples

    Behrndt, J. & Langer, M., Oct 2012, Operator Methods for Boundary Value Problems. Hassi, S., de Snoo, H. S. V. & Szafraniec, F. H. (eds.). Cambridge University Press, p. 121-160 40 p. (London Mathematial Society Lecture Note Series).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed)

  • 2010

    On norms in indefinite product spaces

    Langer, M. & Luger, A., 2010, Recent Advances in Operator Theory in Hilbert and Krein Spaces. Behrndt, J., Förster, K.-H. & Trunk, C. (eds.). Vol. 198. p. 259-264 6 p. (Operator Theory: Advances and Applications).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed)

    2 Citations (Scopus)
  • 2008

    The HELP inequality on trees

    Brown, B. M., Langer, M. & Schmidt, K. M., 15 Nov 2008, Analysis on graphs and its applications. Exner, P., Keating, J. P., Kutchment, P., Sunada, T. & Teplyaev, A. (eds.). Vol. 77. p. 337-354 18 p. (Proceedings of Symposia in Pure Mathematics; vol. 77).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed)

    File
    122 Downloads (Pure)
  • 2006

    Scalar generalized nevanlinna functions: realizations with block operator matrices

    Langer, M. & Luger, A., 2006, Operator theory in Krein spaces and nonlinear eigenvalue problems. Förster, K.-H., Langer, H. & Jonas, P. (eds.). p. 253-276 25 p. (Operator Theory: Advances and Applications; vol. 162).

    Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed)