Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Full well-posedness of point vortex dynamics corresponding to stochastic
  2D Euler equations   The motion of a finite number of point vortices on a two-dimensional periodic
domain is considered. In the deterministic case it is known to be well posed
only for almost every initial configuration. Coalescence of vortices may occur
for certain initial conditions. We prove that when a generic stochastic
perturbation compatible with the Eulerian description is introduced, the point
vortex motion becomes well posed for every initial configuration, in particular
coalescence disappears.

1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph