Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On empty lattice simplices in dimension 4   We give an almost complete classification of empty lattice simplices in
dimension 4 using the conjectural results of Mori-Morrison-Morrison, later
proved by Sankaran and Bober. In particular, all of these simplices correspond
to cyclic quotient singularities, and all but finitely many of them have width
bounded by 2.

11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org