2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/71458Our goal is to extend the theory of the spectral shift function to the case where only the difference of some powers of the resolvents of self-adjoint operators belongs to the trace class. As an example, we consider a couple of Dirac operators.10 pagesSpectral TheoryMathematical Physics47A40text