Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the structure of the singularity manifolds of dispersing billiards   In this paper we study the singularity manifolds of multidimensional strictly
dispersing billiards and show that the proof of the Fundamental theorem for
dispersing billiards remain valid for a dense set of finitely smooth
scatterers.

29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
16
The categories of this paper are: stat