Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Global boundedness of the fundamental solution of parabolic equations
  with unbounded coefficients   The purpose of this paper is to obtain an upper bound for the fundamental
solution for parabolic Cauchy problem u'=Au, where A is a second order elliptic
partial differential operator with unbounded coefficients such that its
potential and the potential of the formal adjoint of the operator A are bounded
from below.

13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex