English

Twisted Internal coHom Objects in the Category of Quantum Spaces

Quantum Algebra 2007-05-23 v4 Mathematical Physics math.MP

Abstract

Adapting the idea of twisted tensor products to the category of finitely generated algebras, we define on its opposite, the category QLS of quantum linear spaces, a family of objects hom(B,A)^{op}, one for each pair A^{op},B^{op} there, with analogous properties to its internal Hom ones, but representing spaces of transformations whose coordinate rings hom(B,A) and the ones of their respective domains B^{op} do not commute among themselves. The mentioned non commutativity is controlled by a collection of twisting maps \tau_{A,B}. We show that the (bi)algebras end(A)=hom(A,A), under certain circumstances, are 2-cocycle twistings of the quantum semigroups end(A) in the untwisted case. This fact generalizes the twist equivalence (at a semigroup level) between, for instance, the quantum groups GL_{q}(n) and their multiparametric versions GL_{q,\phi}(n).

Keywords

Cite

@article{arxiv.math/0112233,
  title  = {Twisted Internal coHom Objects in the Category of Quantum Spaces},
  author = {S. Grillo and H. Montani},
  journal= {arXiv preprint arXiv:math/0112233},
  year   = {2007}
}

Comments

23 pages; Added references and minor changes (including more accurate terminology)

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