2 papers
math-ph2016
On the virtual levels of positively projected massless Coulomb-Dirac operators
Sergey Morozov, David Müller
Considering different self-adjoint realisations of positively projected massless Coulomb-Dirac operators we find out, under which conditions any negative perturbation, however smal…
math-ph2016
Lieb-Thirring and Cwickel-Lieb-Rozenblum inequalities for perturbed graphene with a Coulomb impurity
Sergey Morozov, David Müller
We study the two dimensional massless Coulomb-Dirac operator restricted to its positive spectral subspace and prove estimates on the negative eigenvalues created by electromagnetic…