Nonassociative Riemannian Geometry by Twisting

Details Nonassociative Riemannian Geometry by Twisting Nonassociative Riemannian Geometry by Twisting

2009-12-08

arxiv.org/abs/0912.1553v1

Mathematics

Quantum Algebra

29 pages no figures

Scientific paper

Many quantum groups and quantum spaces of interest can be obtained by cochain (but not cocycle) twist from their corresponding classical object. This failure of the cocycle condition implies a hidden nonassociativity in the noncommutative geometry already known to be visible at the level of differential forms. We extend the cochain twist framework to connections and Riemannian structures and provide examples including twist of the $S^7$ coordinate algebra to a nonassociative hyperbolic geometry in the same category as that of the octonions.

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