Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Weierstrass P-lumps   We present our results of a numerical investigation of the behaviour of a
system of two solitons in the (2+1) dimensional $CP^1$ model on a torus.
Defined by the elliptic function of Weierstrass, and working in the Skyrme
version of the model, the soliton lumps exhibit splitting, scattering at right
angles and motion reversal in the various configurations considered. The work
is restricted to systems with no initial velocity.

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The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
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The categories of this paper are: econ
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga