Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A concrete approach to diagonal short time asymptotics of heat kernels
  associated with sub-Laplacian on CR manifolds   A diffusion process associated with the real sub-Laplacian $\Delta_b$, the
real part of the complex Kohn-Spencer Laplacian $\square_b$, on a strictly
pseudoconvex CR manifold has been constructed. In this paper, we investigate
diagonal short time asymptotics of the heat kernel corresponding to the
diffusion process by using Watanabe's asymptotic expansion and give a
representation for the asymptotic expansion of heat kernels which shows a
relationship to the geometric structure.

9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio