机译:Dirac operators with Lorentz scalar shell interactions
Univ Paris Saclay, Univ Paris Sud, CNRS, Lab Math Orsay, F-91405 Orsay, France;
Graz Univ Technol, Inst Angew Math, Steyrergasse 30, A-8010 Graz, Austria;
Dirac operators; shell interaction; eigenvalue; spectrum; Schrodinger operator;