O. Ya. Savchenko, “The lower bound of the least negative eigenvalue $-\lambda^2$ of the equation $\Delta u+[f(r)-\lambda^2]u=0$”, Zh. Vychisl. Mat. Mat. Fiz., 1962, Volume 2, Number 4,Pages 705

JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 1962 Volume 2, Number 4, Pages 705–706 (Mi zvmmf7918)

Scientific communications

The lower bound of the least negative eigenvalue $-\lambda^2$ of the equation $\Delta u+[f(r)-\lambda^2]u=0$

O. Ya. Savchenko

Moscow

Received: 26.09.1961

Fulltext: PDF file (201 kB)

English version: USSR Computational Mathematics and Mathematical Physics, 1963, 2:4, 788–789

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