Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the function sum(-k^2/s^2)   Some properties of the function$ \psi (s)=\sum\limits_{k=-\infty}^\infty {%
\exp (-\frac{{k^2}}{{s^2}}})$ are studied, and an interpolation formula is
given.

31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph