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Convergence of Perturbation Expansions in Fermionic Models. Part 2: Overlapping Loops by Feldman, Joel; Knoerrer, Horst; Trubowitz, Eugene is a scholarly article available to read on EtoBox.

What is Convergence of Perturbation Expansions in Fermionic Models. Part 2: Overlapping Loops about?

We improve on the abstract estimate obtained in Part 1 by assuming that there are constraints imposed by `overlapping momentum loops'. These constraints are active in a two dimensional, weakly coupled fermion gas with a strictly convex Fermi curve. The improved estimate is used in another paper to control everything but the sum of all ladder contributions to the thermodynamic Green's functions.

Author

Feldman, Joel; Knoerrer, Horst; Trubowitz, Eugene

Published

2002

Language

EN