Partial Differential Equations

On the absence of the basis property of a system of root functions of a problem with an oblique derivative

V. A. Il'in^a, E. I. Moiseev<sup>b

a</sup> Lomonosov Moscow State University
^b Steklov Mathematical Institute of Russian Academy of Sciences, Moscow

UDC: 517.95

Received: 17.08.1993

 English version: Differential Equations, 1994, 30:1, 119–132

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