99-29 V. Georgescu, M. Mantoiu
On the Spectral Theory of Dirac Type Hamiltonians (616K, Postscript) Jan 25, 99
Abstract , Paper (src), View paper (auto. generated ps), Index of related papers

Abstract. We introduce a class of matrix valued pseudo-differential operators that admit scalar locally conjugate operators (in the sense of E. Mourre) and we give a general method for studying singular perturbations of such operators. In particular, we develop the spectral and scattering theory for a class of hamiltonians which contains the Dirac operators with arbitrary Coulomb singularities.

Files: 99-29.src( 99-29.keywords , dirarch.ps )