Estimate from Below of the First Eigenvalue for the Beltrami–Laplace Operator in the Three-Dimensional Space.
| Autor: | Arkhipov, G. I., Chubarikov, V. N. |
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| Zdroj: | Journal of Mathematical Sciences. Apr2003, Vol. 114 Issue 4, p1397-1406. 10p. |
| Databáze: | Academic Search Ultimate |
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