Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Quaternionic Tori and their Moduli Spaces   Quaternionic tori are defined as quotients of the skew field $\mathbb{H}$ of
quaternions by rank-4 lattices. Using slice regular functions, these tori are
endowed with natural structures of quaternionic manifolds (in fact quaternionic
curves), and a fundamental region in a $12$-dimensional real subspace is then
constructed to classify them up to biregular diffeomorphisms. The points of the
moduli space correspond to suitable \emph{special} bases of rank-4 lattices,
which are studied with respect to the action of the group $GL(4, \mathbb{Z})$,
and up to biregular diffeomeorphisms. All tori with a non trivial group of
biregular automorphisms - and all possible groups of their biregular
automorphisms - are then identified, and recognized to correspond to five
different subsets of boundary points of the moduli space.

33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci