Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Skew group algebras of piecewise hereditary algebras are piecewise
  hereditary   We show that the main results of Happel-Rickard-Schofield (1988) and
Happel-Reiten-Smalo (1996) on piecewise hereditary algebras are coherent with
the notion of group action on an algebra. Then, we take advantage of this
compatibility and show that if G is a finite group acting on a piecewise
hereditary algebra A over an algebraically closed field whose characteristic
does not divide the order of G, then the resulting skew group algebra A[G] is
also piecewise hereditary.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys