Necessary conditions for the \(L_ 2\)-convergence of series in eigenfunctions of irregular eigenvalue problems

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Publication:1082511

DOI10.1016/0022-247X(86)90103-4zbMath0603.34019MaRDI QIDQ1082511

Gerhard Freiling

Publication date: 1986

Published in: Journal of Mathematical Analysis and Applications (Search for Journal in Brave)




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