Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Representation Theorem for Singular Integral Operators on Spaces of
  Homogeneous Type   Let (X,d,\mu) be a space of homogeneous type and E a UMD Banach space. Under
the assumption mu({x})=0 for all x in X, we prove a representation theorem for
singular integral operators on (X,d,mu) as a series of simple shifts and
rearrangements plus two paraproducts. This gives a T(1) Theorem in this
setting.

14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: nlin
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The categories of this paper are: hep-ex
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat