Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Isorotating Baby Skyrmions   We discuss how internal rotation with fixed angular frequency can affect the
solitons in the baby Skyrme model in which the global O(3) symmetry is broken
to the SO(2). Two particular choices of the potential term are considered, the
"old" potential and the "new" double vacuum potential, We do not impose any
assumptions about the symmetry on the fields. Our results confirm existence of
two types of instabilities determined by the relation between the mass
parameter of the potential and the angular frequency.

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The categories of this paper are: math-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
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The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: econ