Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On an apparently bilinear inequality for the Fourier transform   A bilinear inequality of Geba, Greenleaf, Iosevich, Palsson, and Sawyer for
the Fourier transform is shown to be equivalent to a simpler linear inequality,
and the range of exponents is extended. Related mixed-norm inequalities are
discussed.

7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg