## History of the problem While it is relatively easy to get estimations of upper bounds for eigerivalues of elliptic differential operators with the well-known methods of J. W. S. RAYLEIGH and W. RITZ, the estimation of lower bounds is much more complicated. Estimations of lower bounds for eigenv
β¦ LIBER β¦
A lower bound for the first eigenvalue of an elliptic operator
β Scribed by A Alvino; G Trombetti
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 317 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0022-247X
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