Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A sharp integral rearrangement inequality for the dyadic maximal
  operator and applications   We prove a sharp integral inequality for the dyadic maximal operator and give
as an application another proof for the computation of its Bellman function of
three variables.

15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th