Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Magnetic Behavior of the t-J Model   Using the spin-hole coherent state representation, and taking the long range
antiferromagnetic N\'{e}el order as the background of the spin degree part, we
have studied the magnetic behavior of the t-J model in the usual slave boson
and slave fermion treatment of the single occupation constraint, and shown that
we can qualitatively explain the anomalous magnetic and transport properties of
the normal state of the cuprate superconducting materials by the t-J model.

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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-th