University of Groningen
Johann Bernoulli Institute for Mathematics and Computer Science




Henk de Snoo




Affiliation

H.S.V. de Snoo

University of Groningen
Johann Bernoulli Institute for Mathematics and Computer Science
P.O. Box 407
9700 AK Groningen
Nederland

Bernoulliborg, room 478
Phone : +31 (0)50 3633963
Fax : +31 (0)50 3633800
Phone : +31 (0)50 3633939/3633950 (secretary)

Email : desnoo@math.rug.nl



Research

Spectral theory in Hilbert spaces and in indefinite inner-product spaces

  • Abstract boundary-value problems
  • Semibounded and sectorial relations and forms, and their decompositions
  • Structure of linear relations
  • Classification of (generalized) Nevanlinna functions; asymptotic expansions
  • Singular perturbations of selfadjoint operators
  • Canonical systems of differential equations; Sturm-Liouville equations (with floating singularities)
  • System-theoretic realizations of classes of Nevanlinna functions and Nevanlinna families



    Preprints

  • J. Behrndt, S. Hassi, H.S.V. de Snoo, H.L. Wietsma, and H. Winkler, Linear fractional transformations of Nevanlinna functions associated with a nonnegative operator
  • J.-Ph. Labrousse, A. Sandovici, H.S.V. de Snoo, and H. Winkler, Closed linear relations and their regular points
  • H.S.V. de Snoo and H. Woracek, Sums, couplings, and completions of almost Pontryagin spaces
  • S. Hassi, H.S.V. de Snoo, and F. H. Szafraniec (editors), Operator methods for boundary value problems, London Mathematical Society, Lecture Note Series 404, Cambridge University Press, to appear.



    Publications

  • Recent publications



    Teaching

  • Functional analysis (4th period 2012-2013)
  • Measure and integration (1st period 2013-2014)



    Workshop December 14-December 17, 2010

  • Systems and Operators



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    Comments via H.S.V. de Snoo
    Last modified: April 11, 2012