Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact topological density in the lattice Skyrme model   We propose using the Skyrme model on a lattice as an effective field theory
of meson-baryon interactions. To this end we construct a local topological
density that involves the volumes of tetrahedra in the target space S^3 and we
make use of Coxeter's formula for the Schlafli function to implement it. We
calculate the mean-square radius of a skyrmion in the three-dimensional Skyrme
model, and find some surprises.

22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess