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Eigenvalues of compact operators with applications to integral operators

✍ Scribed by Hermann König


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
618 KB
Volume
84
Category
Article
ISSN
0024-3795

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On the Eigenvalues of Operators with Gap
✍ Jean Dolbeault; Maria J. Esteban; Eric Séré 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 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