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Matematicheskie Zametki, 1968, Volume 4, Issue 2, Pages 169–172
(Mi mzm6758)
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Some asymptotic spectral properties of singular operators
Yu. N. Sudarev M. V. Lomonosov Moscow State University
Abstract:
A class of uniformly elliptic, positive operators in $R^n$ with discrete spectrum is considered for which the coefficients of the derivatives of even order and the free term increase at the same rate, while the other coefficients play a subordinate role. The first term of the asymptotic expansion of the spectral function and $N(\lambda)$ is found for such operators; here $N(\lambda)=\sum_{\lambda_n\leqslant\lambda}1$, where the $\lambda_n$ are the eigenvalues of the operator.
Received: 11.12.1967
Citation:
Yu. N. Sudarev, “Some asymptotic spectral properties of singular operators”, Mat. Zametki, 4:2 (1968), 169–172; Math. Notes, 4:2 (1968), 592–594
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https://www.mathnet.ru/eng/mzm6758 https://www.mathnet.ru/eng/mzm/v4/i2/p169
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Abstract page: | 205 | Full-text PDF : | 87 | First page: | 1 |
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