Brief Communications

Spectral Points of Type $\pi_+$ and $\pi_-$ of Operator-Valued Functions Taking Values in the Set of Unbounded Operators

M. S. Denisov

Voronezh Institute of State fire service of EMERCOM of Russia

Keywords: Krein space, approximative spectrum, operator-valued function.

Received: 21.12.2015

DOI: 10.4213/mzm11040

 English version: Mathematical Notes, 2016, 100:3, 491–494

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