Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cohomology of congruence schemes   Modules for sesquiads and congruence schemes are introduced. It is shown that
the corresponding categories are belian and that base change functors establish
an ascent datum which allows for a cohomology theory to be established.

35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat