Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Compactness of Fourier Integral Operators on weighted modulation spaces   Using the matrix representation of Fourier integral operators with respect to
a Gabor frame, we study their compactness on weighted modulation spaces. As a
consequence, we recover and improve some compactness results for
pseudodifferential operators.

33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics