An estimate of the length of the gaps in the spectrum of the Laplace operator for a plane convex domain
Doklady Akademii Nauk, Tome 245 (1979) no. 1, pp. 20-23
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@article{DAN_1979_245_1_a3,
author = {V. F. Lazutkin},
title = {An estimate of the length of the gaps in the spectrum of the {Laplace} operator for a plane convex domain},
journal = {Doklady Akademii Nauk},
pages = {20--23},
year = {1979},
volume = {245},
number = {1},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_1_a3/}
}
V. F. Lazutkin. An estimate of the length of the gaps in the spectrum of the Laplace operator for a plane convex domain. Doklady Akademii Nauk, Tome 245 (1979) no. 1, pp. 20-23. http://geodesic.mathdoc.fr/item/DAN_1979_245_1_a3/