07-102 M. Griesemer, D. Hasler
On the Smooth Feshbach-Schur Map (156K, pdf-File) Apr 24, 07
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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 $\chi$ and $\chib$.

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