V. A. Il'in, V. V. Tikhomirov, “The basis property of Riesz means of spectral decompositions corresponding to an <nobr>$n$</nobr>th-order ordinary nonselfadjoint differential operator”, Differ. Uravn., 1982, Volume 18, Number 12,Pages <nobr>2098

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Ordinary Differential Equations

The basis property of Riesz means of spectral decompositions corresponding to an $n$th-order ordinary nonselfadjoint differential operator

V. A. Il'in^a, V. V. Tikhomirov^b

^a V. A. Steklov Mathematical Institute, USSR Academy of Sciences
^b Lomonosov Moscow State University

UDC: 517.43

Received: 17.05.1982