Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the homotopy exact sequence for Nori's fundamental group   Unlike Grothendieck's \'etale fundamental group, Nori's fundamental group
does not fulfill the homotopy exact sequence in general. We give necessary and
sufficient conditions which force exactness of the sequence.

11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg