MATHEMATICS

Necessary conditions for the unconditional basis property of systems of root functions of nonselfadjoint differential operators

V. D. Budaev

Lomonosov Moscow State University

UDC: 517.927.25

Presented: V. A. Il'in
Received: 18.09.1992

 English version: Doklady Mathematics, 1993, 47:2, 257–261

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