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Joint spectrum of commuting normal operators and its position. Estimates for roots of second order polynomials. Definition of well-posedness of boundary-value problems

  • Alexander Ya. Shklyar
Chapter
Part of the Operator Theory Advances and Applications book series (OT, volume 92)

Abstract

For the sake of simplicity, we begin with an important particular case where A and B are arbitrary commuting self-adjoint operators (c.s.o.) in a separable Hilbert space H.

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Copyright information

© Birkhäuser Verlag 1997

Authors and Affiliations

  • Alexander Ya. Shklyar
    • 1
  1. 1.Institute of MathematicsUkrainian Academy of SciencesKievUkraine

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