30 citations · 52 across the 4 of their papers we have counts for
4 papers
Ultraviolet Renormalisation of a Quantum Field Toy Model II
Benjamin Alvarez, Jacob Schach Møller
We consider a class of toy models describing a fermion field coupled with a boson field. The model can be viewed as a Yukawa model but with scalar fermions. As in our first paper,…
Local Spectral Deformation
M. Engelmann, J. S. Møller, M. G. Rasmussen
We develop an analytic perturbation theory for eigenvalues with finite multiplicities, embedded into the essential spectrum of a self-adjoint operator . We assume the existence…
Regularity of Bound States
J. Faupin, J. S. Møller, E. Skibsted
We study regularity of bound states pertaining to embedded eigenvalues of a self-adjoint operator , with respect to an auxiliary operator that is conjugate to in the sen…
Second order perturbation theory for embedded eigenvalues
J. Faupin, J. S. Møller, E. Skibsted
We study second order perturbation theory for embedded eigenvalues of an abstract class of self-adjoint operators. Using an extension of the Mourre theory, under assumptions on the…