Sufficient conditions that the minimum and maximum of partial differential operators should coincide and that their spectra should be discrete

DOI10.1007/BF01116446zbMath0174.45802MaRDI QIDQ2532729

M. G. Gimadislamov

Publication date: 1969

Published in: Mathematical Notes (Search for Journal in Brave)

zbMATH Keywords

functional analysis

Cites Work

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