On the classification and properties of noncommutative duplicates

Details On the classification and properties of noncommutative duplicates On the classification and properties of noncommutative duplicates

2006-12-07

arxiv.org/abs/math/0612188v1

K-Theory, 38 (2), 223-234 (2008)

Mathematics

Rings and Algebras

11 pages, no figures

Scientific paper

10.1007/s10977-007-9017-y,

We give an explicit description of the set of all factorization structures, or twisting maps, existing between the algebras k^2 and k^2, and classify the resulting algebras up to isomorphism. In the process we relate several different approaches formerly taken to deal with this problem, filling a gap that appeared in a recent paper by Cibils. We also provide a counterexample to a result concerning the Hochschild (co)homology appeared in a paper by J.A. Guccione and J.J. Guccione.

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