Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Van der Corput sets in Z^d   In this partly expository paper we study van der Corput sets in $\Z^d$, with
a focus on connections with harmonic analysis and recurrence properties of
measure preserving dynamical systems. We prove multidimensional versions of
some classical results obtained for $d=1$ in \cite{K-MF} and \cite{R},
establish new characterizations, introduce and discuss some modifications of
van der Corput sets which correspond to various notions of recurrence, provide
numerous examples and formulate some natural open questions.

31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: plasm-ph