Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Euler characteristic of infinite acyclic categories with filtrations   The aim of this paper is twofold. One is to give a definition of the Euler
characteristic of infinite acyclic categories with filtrations and the other is
to prove the invariance of the Euler characteristic under the subdivision of
finite categories.

33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph