Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Eisenstein Series and Convolution Sums   We compute Fourier series expansions of weight $2$ and weight $4$ Eisenstein
series at various cusps. Then we use results of these computations to give
formulas for the convolution sums $ \sum_{a+p b=n}\sigma(a)\sigma(b)$, $
\sum_{p_1a+p_2 b=n}\sigma(a)\sigma(b)$ and $ \sum_{a+p_1 p_2
b=n}\sigma(a)\sigma(b)$ where $p, p_1, p_2$ are primes.

29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th