Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Duality for coalescing stochastic flows on the real line   For a class of coalescing stochastic flows on the real line the existence of
dual flows is proved. A stochastic flow and its dual are constructed as a
forward and backward perfect cocycles over the same metric dynamical system.
The metric dynamical system itself is defined on a new state space for
coalescing flows. General results are applied to Arratia flows with drift.

29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn