Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A commutative model for PL compactly supported cohomology in
  characteristic zero   We show that that classical rational homotopy theory in the sense of Sullivan
[6] can be extended compactly supported setting. This presents a simplicial
version of the compactly supported de Rham complex in characteristic zero, and
proving that it models singular compactly supported cohomology. This presents
new avenues of possible study in proper homotopy theory, and further extensions
of the ideas within the classical literature of Quillen [5] and Sullivan.

8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an