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On the smooth Feshbach-Schur map |
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| Authors: | M. Griesemer D. Hasler |
| Affiliation: | a Fachbereich Mathematik, Universität Stuttgart, D-70569 Stuttgart, Germany b Department of Mathematics, University of Virginia, Charlottesville, VA 22904-4137, USA |
| Abstract: | A new variant of the Feshbach map, called smooth Feshbach map, has been introduced recently by Bach et al., in connection with the renormalization analysis of non-relativistic quantum electrodynamics. We analyze and clarify its algebraic and analytic properties, and we generalize it to non-selfadjoint partition operators χ and  . |
| Keywords: | Schur complement Feshbach map Quantum electrodynamics Renormalization transform |
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