Author
Dolbeault, Jean
Esteban, Maria J.
Séré, Eric
Type
Article accepté pour publication ou publié
Abstract (EN)
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 potential.
