## Résonances paires pour l’opérateur de Dirac. (Even resonances for the Dirac operator).(French)Zbl 0723.35051

Summary: The purpose of this note is to define resonances for Dirac operator and to show that they are even, as the eigenvalues (theorem of Kramers). The assumptions on the potential are similar to those taken for Schrödinger operator by B. Helffer and J. Sjöstrand.

### MSC:

 35P05 General topics in linear spectral theory for PDEs 35Q40 PDEs in connection with quantum mechanics 81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics

### Keywords:

resonances; Dirac operator