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arXiv 0906.0922math.PRmath-phmath.MP
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自回避游动的泛函整表示

Functional integral representations for self-avoiding walk

David C. Brydges, John Z. Imbrie, Gordon Slade

摘要:

本文对简单随机游动和一些自回避游动模型,包括严格自回避模型、弱自回避模型以及游动和回路模型的泛函整表示进行了综述和统一处理.严格自避行走的表示是新的。该表示最近被用来作为出发点严格的重整化群分析的自避免行走模型在4维。对于没有环的模型,我们的整表示涉及到费米子,并且我们也提供了费米子积分的介绍。费米子积分是用反对易格拉斯曼变量表示的,它可以方便地解释为微分形式。

英文摘要:

We give a survey and unified treatment of functional integral representations for both simple random walk and some self-avoiding walk models, including models with strict self-avoidance, with weak self-avoidance, and a model of walks and loops. Our representation for the strictly self-avoiding walk is new. The representations have recently been used as the point of departure for rigorous renormalization group analyses of self-avoiding walk models in dimension 4. For the models without loops, the integral representations involve fermions, and we also provide an introduction to fermionic integrals. The fermionic integrals are in terms of anti-commuting Grassmann variables, which can be conveniently interpreted as differential forms.

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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