Differentsial'nye Uravneniya
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Differentsial'nye Uravneniya, 1970, Volume 6, Number 1, Pages 7–16 (Mi de873)  
A lower bound of the sum of the squares of the fundamental functions, and of the number of the fundamental values, for an arbitrary $FSF$ of Laplace's operator

V. A. Il'in

Lomonosov Moscow State University
Full-text PDF (963 kB)
Received: 24.10.1969
Bibliographic databases:
Document Type: Article
UDC: 517.95.517.955.217
Language: Russian
Citation: V. A. Il'in, “A lower bound of the sum of the squares of the fundamental functions, and of the number of the fundamental values, for an arbitrary $FSF$ of Laplace's operator”, Differ. Uravn., 6:1 (1970), 7–16
Citation in format AMSBIB
\Bibitem{Ili70}
\by V.~A.~Il'in
\paper A lower bound of the sum of the squares of the fundamental functions, and of the number of the fundamental values, for an arbitrary $FSF$ of Laplace's operator
\jour Differ. Uravn.
\yr 1970
\vol 6
\issue 1
\pages 7--16
\mathnet{http://mi.mathnet.ru/de873}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=259396}
\zmath{https://zbmath.org/?q=an:0208.36703}
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