MATHEMATICS

On the completeness of the system of eigenfunctions of a class of partial differential operators

I. I. Ibragimov^a, I. F. Kushnirchuk<sup>b

a</sup> Institute of Applied Mathematics and Mechanics AS of AzSSR, Baku
^b Chernovtsy State University

UDC: 517.537

Received: 30.09.1974

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