The asymptotic distribution of eigenvalues of the Laplace operator in an unbounded domain. (English) Zbl 0324.35071
MSC:
35P05 | General topics in linear spectral theory for PDEs |
35J25 | Boundary value problems for second-order elliptic equations |
47F05 | General theory of partial differential operators |
References:
[1] | DOI: 10.1007/BF00281421 · Zbl 0187.05901 · doi:10.1007/BF00281421 |
[2] | Dok. Akad. Nauk SSSR 147 pp 760– (1962) |
[3] | DOI: 10.1090/S0002-9904-1966-11564-1 · Zbl 0145.14802 · doi:10.1090/S0002-9904-1966-11564-1 |
[4] | DOI: 10.1007/BF00281340 · Zbl 0155.17102 · doi:10.1007/BF00281340 |
[5] | Problèmes aux limites non homogènes et applications 1 (1968) |
[6] | Funkcional Anal, i Prilozen 1 pp 86– (1967) |
[7] | Eigenfunction Expansions associated with second order differential equations II (1958) · Zbl 0097.27601 |
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