This article is cited in 2 papers

Estimates of $s$-numbers and completeness conditions for systems of root vectors of non-self-adjoint Sturm–Liouville operators

M. O. Otelbaev

Institute of Mathematics and Mechanics, AS of KazSSR

UDC: 517.88

Received: 13.12.1976

 English version: Mathematical Notes, 1979, 25:3, 216–221

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