Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Morita Reduced Versions of Skew Group Algebras of Path Algebras   Let R be the skew group algebra of a finite group acting on the path algebra
of a quiver. This article develops both theoretical and practical methods to do
computations in the Morita reduced algebra associated to R. Reiten and
Riedtmann proved that there exists an idempotent e of R such that the algebra
eRe is both Morita equivalent to R and isomorphic to the path algebra of some
quiver which was described by Demonet. This article gives explicit formulas for
the decomposition of any element of eRe as a linear combination of paths in the
quiver described by Demonet. This is done by expressing appropriate
compositions and pairings in a suitable monoidal category which takes into
account the representation theory of the finite group.

21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc