V. A. Il'in, I. Jo, “An estimate of the difference of the partial sums of expansions corresponding to two arbitrary nonnegative selfadjoint extensions of two operators of Sturm–Liouville type for an absolutely continuous function”, Dokl. Akad. Nauk SSSR, 1978, Volume 243, Number 6,Pages <nobr>1381

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MATHEMATICS

An estimate of the difference of the partial sums of expansions corresponding to two arbitrary nonnegative selfadjoint extensions of two operators of Sturm–Liouville type for an absolutely continuous function

V. A. Il'in^a, I. Jo^b

^a Lomonosov Moscow State University
^b Bolyai Institute, University of Szeged

UDC: 517.4

Presented: A. N. Tikhonov
Received: 10.07.1978