Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasi-invariant gaussian measures for one dimensional Hamiltonian PDE's   We prove the quasi-invariance of gaussian measures (supported by functions of
increasing Sobolev regularity) under the flow of one dimensional Hamiltonian
PDE's such as the regularized long wave (BBM) equation.

32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th