Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Littlewood-Paley decompositions and Besov spaces on Lie groups of
  polynomial growth   We introduce a Littlewood-Paley decomposition related to any sub-Laplacian on
a Lie group G of polynomial volume growth; this allows us to prove a
Littlewood-Paley theorem in this general setting and to provide a dyadic
characterization of Besov spaces equivalent to the classical definition through
the heat kernel.

16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
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The categories of this paper are: eess
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
1
The categories of this paper are: cs
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The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn