Convergence of Perturbation Expansions in Fermionic Models. Part 1: Nonperturbative Bounds

被引：0

作者：

Joel Feldman

Horst Knörrer

Eugene Trubowitz

机构：

[1] University of British Columbia,Department of Mathematics

[2] ETH-Zentrum,Mathematik

来源：

Communications in Mathematical Physics | 2004年 / 247卷

关键词：

Operator Norm; Renormalization Group; Abstract Estimate; Perturbation Expansion; Fermionic Model;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An estimate on the operator norm of an abstract fermionic renormalization group map is derived. This abstract estimate is applied in another paper to construct the thermodynamic Green’s functions of a two dimensional, weakly coupled fermion gas with an asymmetric Fermi curve. The estimate derived here is strong enough to control everything but the sum of all quartic contributions to the Green’s functions.

引用

页码：195 / 242

页数：47

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