Mathematics – Quantum Algebra
Scientific paper
2003-01-31
Mathematics
Quantum Algebra
7 pages
Scientific paper
We give a definition of a noncommutative torsor by a subset of the axioms
previously given by Grunspan. We show that noncommutative torsors are an
equivalent description of Hopf-Galois objects (without specifying the Hopf
algebra). In particular, this shows that the endomorphism of a torsor featuring
in Grunspan's definition is redundant.
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