Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Delta Expansion on the Lattice and Dilated Scaling Region   A new kind of delta expansion is applied on the lattice to the d=2 non-linear
sigma model at N=infinity and N=1 which corresponds to the Ising model. We
introduce the parameter delta for the dilation of the scaling region of the
model with the replacement of the lattice spacing a to (1-delta)^{1/2}a. Then,
we demonstrate that the expansion in delta admits an approximation of the
scaling behavior of the model at both limits of N from the information at a
large lattice spacing a.

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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph