Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Velocity and diffusion coefficient of $A+A\leftrightarrow A$ reaction
  fronts in one dimension   We study front propagation in the reversible reaction-diffusion system A + A
<-> A on a 1-d lattice. Extending the idea of leading particle in studying the
motion of the front we write a master equation in the stochastically moving
frame attached to this particle. This approach provides a systematic way to
improve on estimates of front speed obtained earlier. We also find that the
leading particle performs a correlated random walk and this correlation needs
to be taken into account to get correct value of the front diffusion
coefficient.

22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg