×

Asymptotic formulas for the eigenvalues of the Laplace operator in the case of a polyhedron. (English. Russian original) Zbl 0133.36101

Sov. Math., Dokl. 5, 988-990 (1964); translation from Dokl. Akad. Nauk SSSR 157, 536-538 (1964).

MSC:

35P25 Scattering theory for PDEs
35J10 Schrödinger operator, Schrödinger equation