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arXiv 0904.1241hep-thgr-qcmath.DG
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二维非线性西格玛模型的二阶重整化群流

The 2nd order renormalization group flow for non-linear sigma models in 2 dimensions

Todd A. Oliynyk

摘要:

我们证明了,对于具有负欧拉特征的二维流形M,存在光滑黎曼度量空间的子集,这些子集对于二阶RG流是不变的,并且是抛物的或向后抛物的。我们还表明,解决方案存在于这些集的全球。最后,我们建立了一个永恒的解决方案,有一个紫外线和红外线的限制,并通过区域的流动是抛物线和向后抛物线。

英文摘要:

We show that for two dimensional manifolds M with negative Euler characteristic there exists subsets of the space of smooth Riemannian metrics which are invariant and either parabolic or backwards-parabolic for the 2nd order RG flow. We also show that solutions exists globally on these sets. Finally, we establish the existence of an eternal solution that has both a UV and IR limit, and passes through regions where the flow is parabolic and backwards-parabolic.

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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