Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lipschitz spaces and Calderon-Zygmund operators associated to
  non-doubling measures   In the setting of $\R^d$ with an $n-$dimensional measure $\mu,$ we give
several characterizations of Lipschitz spaces in terms of mean oscillations
involving $\mu.$ We also show that Lipschitz spaces are preserved by those
Calderon-Zygmund operators $T$ associated to the measure $\mu$ for which T(1)
is the Lipschitz class $0.$

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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th