Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Maximal rigid objects as noncrossing bipartite graphs   Let Q be a Dynkin quiver of type A. The bounded derived category of the path
algebra of Q has an autoequivalence given by the composition of the
Auslander-Reiten translate and the square of the shift functor. We classify the
maximal rigid objects in the corresponding orbit category C(Q), in terms of
bipartite noncrossing graphs (with loops) in a circle. We also describe the
endomorphism algebras of the maximal rigid objects, and we prove that a certain
class of these algebras are iterated tilted algebras of type A.

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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg