Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Clustering in a model with repulsive long-range interactions   A striking clustering phenomenon in the antiferromagnetic Hamiltonian
Mean-Field model has been previously reported. The numerically observed
bicluster formation and stabilization is here fully explained by a non linear
analysis of the Vlasov equation.

6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th