This article is cited in 5 papers

Brief Communications

An Analog of Orlov's Theorem on the Deficiency Index of Second-Order Differential Operators

I. N. Braeutigam^a, K. A. Mirzoev^b, T. A. Safonova<sup>a

a</sup> Nothern (Arctic) Federal University named after M. V. Lomonosov, Arkhangelsk
^b M. V. Lomonosov Moscow State University

Keywords: quasi-derivative, quasi-differential expression with matrix-valued coefficients, minimal and maximal operators, deficiency number, deficiency index.

Received: 14.09.2014

DOI: 10.4213/mzm10578

 English version: Mathematical Notes, 2015, 97:2, 300–303

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