Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heat Kernel Expansions for Distributional Backgrounds   Heat kernel expansion coefficients are calculated for vacuum fluctuations
with distributional background potentials and field strengths. Terms up to and
including t^5/2 are presented.

36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom