Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On a parabolic operator of dissipative systems   A parabolic integro differential operator operator L suitable to describe
many phenomena in various physical fields,is considered. By means of
equivalence between L and the third order equation which describe the evolution
inside an exponentially shaped Josephson junction (ESJJ), an asymptotic
analysis for (ESJJ) is achieved, evaluating explicitly boundary contributions
related to the Dirichlet problem.

13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th