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arXiv math-ph/0209045math-phmath.MP
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费米模型中微扰展开的收敛性。第1部分:非微扰边界

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

Joel Feldman, Horst Knoerrer, Eugene Trubowitz

摘要:

给出了一个抽象费米子重整化群映射的算子范数的估计。在另一篇文章中,我们应用这个抽象的估计,构造了具有非对称费米曲线的二维弱耦合费米子气体的热力学格林函数。这里导出的估计是强大到足以控制一切,但所有四次贡献的格林函数的总和。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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