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Asymptotic behavior of the spectrum of elliptic boundary value problems with resolvable couplings. (English. Russian original) Zbl 0354.35070

Sov. Math., Dokl. 17(1976), 1319-1322 (1977); translation from Dokl. Akad. Nauk SSSR 230, 505-507 (1976).

MSC:

35P20 Asymptotic distributions of eigenvalues in context of PDEs
35J20 Variational methods for second-order elliptic equations
35Q99 Partial differential equations of mathematical physics and other areas of application