Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ribbon categories and (unoriented) CFT: Frobenius algebras,
  automorphisms, reversions   A Morita class of symmetric special Frobenius algebras A in the modular
tensor category of a chiral CFT determines a full CFT on oriented world sheets.
For unoriented world sheets, A must in addition possess a reversion, i.e. an
isomorphism from A^opp to A squaring to the twist. Any two reversions of an
algebra A differ by an element of the group Aut(A) of algebra automorphisms of
A. We establish a group homomorphism from Aut(A) to the Picard group of the
bimodule category C_AA, with kernel consisting of the inner automorphisms, and
we refine Morita equivalence to an equivalence relation between algebras with
reversion.

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The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex