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Twisted Internal coHom Objects in the Category of Quantum Spaces

S. Grillo·H. Montani
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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 τ_{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,ϕ}(n).

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BibTeXRIS

S. Grillo, H. Montani. 2003-06-27. Twisted Internal coHom Objects in the Category of Quantum Spaces. https://arxiv.org/abs/math/0112233

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