99 citations · 155 across the 8 of their papers we have counts for
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Spectral deformation for two-body dispersive systems with e.g. the Yukawa potential
Matthias Engelmann, Morten Grud Rasmussen
We find an explicit closed formula for the 'th iterated commutator of arbitrary order between a Hamiltonian and a…
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…
Asymptotic Completeness in Quantum Field Theory: Translation Invariant Nelson Type Models Restricted to the Vacuum and One-Particle Sectors
Christian Gérard, Jacob Schach Møller, Morten Grud Rasmussen
Time-dependent scattering theory for a large class of translation invariant models, including the Nelson and Polaron models, restricted to the vacuum and one-particle sectors is st…
Projection operators on matrix weighted and a simple sufficient Muckenhoupt condition
Morten Nielsen, Morten Grud Rasmussen
Boundedness for a class of projection operators, which includes the coordinate projections, on matrix weighted -spaces is completely characterised in terms of simple scalar co…