Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear characters of SL_2 over Dedekind domains   For an important class of arithmetic Dedekind domains O including the ring of
integers of not totally complex number fields, we describe explicitly the group
of linear characters of SL_2(O). For this, we determine, for arbitrary Dedekind
domains O, the group of linear characters of SL_2(O) whose kernel is a
congruence subgroup.

22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom