Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Construction of $s$-extremal optimal unimodular lattices in dimension 52   An $s$-extremal optimal unimodular lattice in dimension $52$ is constructed
for the first time. This lattice is constructed from a certain self-dual
$\mathbb{F}_5$-code by Construction A. In addition, as neighbors of the
lattice, two more $s$-extremal optimal unimodular lattices are constructed.

23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn