Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Waring-Goldbach problem on average   Let $s$, $\ell$ be two integers such that $2\le s\le \ell-1$, $\ell\ge 3$. We
prove that a suitable asymptotic formula for the average number of
representations of integers $n=\sum_{i=1}^{s} p_{i}^{\ell}$, where $p_i$,
$i=1,\dotsc,s$, are prime numbers, holds in short intervals.

22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int