Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Variational principles for asymptotic variance of general Markov
  processes   A variational formula for the asymptotic variance of general Markov processes
is obtained. As application, we get a upper bound of the mean exit time of
reversible Markov processes, and some comparison theorems between the
reversible and non-reversible diffusion processes.

4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an