Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fixed Points of Nonlinear Sigma Models in d>2   Using Wilsonian methods, we study the renormalization group flow of the
Nonlinear Sigma Model in any dimension $d$, restricting our attention to terms
with two derivatives. At one loop we always find a Ricci flow. When symmetries
completely fix the internal metric, we compute the beta function of the single
remaining coupling, without any further approximation. For $d>2$ and positive
curvature, there is a nontrivial fixed point, which could be used to define an
ultraviolet limit, in spite of the perturbative nonrenormalizability of the
theory. Potential applications are briefly mentioned.

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The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
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The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph