Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The amplitude modulation transform   Motivated by the study of the local extrema of sin(x)/x we define the
\emph{Amplitude Modulation} transform of functions defined on (subsets of) the
real line. We discuss certain properties of this transform and invert it in
some easy cases.

32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg