- 97-287 Joel Feldman, Manfred Salmhofer, Eugene Trubowitz
- Regularity of the moving Fermi surface: the exact selfenergy
(76K, plain TeX with postscript figures)
May 21, 97
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Abstract. Regularity of the deformation of the Fermi surface under short-range
interactions is established to all orders in perturbation theory.
The proofs are based on a new classification of all graphs that
are not doubly overlapping. They turn out to be generalized
RPA graphs. This provides a simple extension to all orders of the
regularity theorem of the Fermi surface movement proven in [FST2].
Models in which S is not symmetric under the reflection
p to -p are included.