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On convergence to the Dirac measure and to the identity operator

โœ Scribed by S. S. Kutateladze


Book ID
112451229
Publisher
SP MAIK Nauka/Interperiodica
Year
1972
Tongue
English
Weight
179 KB
Volume
13
Category
Article
ISSN
0037-4466

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On the Eigenvalues of Operators with Gap
โœ Jean Dolbeault; Maria J. Esteban; Eric Sรฉrรฉ ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 173 KB

This paper is devoted to a general min-max characterization of the eigenvalues in a gap of the essential spectrum of a self-adjoint unbounded operator. We prove an abstract theorem, then we apply it to the case of Dirac operators with a Coulomb-like potential. The result is optimal for the Coulomb p