Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Size of product of a number and its multiplicative inverse, Moments of
  L-functions and Exponential Sums   In this paper, we study the average size of the product of a number and its
multiplicative inverse modulo a prime p. This turns out to be related to
moments of L-functions and leads to a curious asymptotic formula for a certain
triple exponential sum.

12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an