Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Operator Method and Recursion Relations for Inflationary Correlator   We develop the systematics for applying operators on Minkowski correlation
functions to get the inflationary correlation functions. Simple structures and
recursion relations are known for Minkowski correlation functions. Using the
operator technique, various novel recursion relations for inflationary
correlation functions are obtained.

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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-th