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The noncommutative geometry of frame bundles

Operator Algebras 2025-12-24 v1 Mathematical Physics Differential Geometry math.MP

Abstract

We apply ourselves to the noncommutative geometry of frame bundles by showing that each C^*-algebraic noncommutative principal SO(n)\mathrm{SO}(n)-bundle is, up to isomorphism, uniquely determined by its associated noncommutative vector bundle with respect to the standard representation of SO(n)\mathrm{SO}(n). For this, we provide a construction procedure, via unitary tensor functors, that for a certain type of correspondence, let's say MM, attaches a free C^*-dynamical system (AM,SO(n),αM)(\mathcal{A}_M,\mathrm{SO}(n),\alpha_M) with the property that its associated noncommutative vector bundle with respect to the standard representation of SO(n)\mathrm{SO}(n) is isomorphic to MM.

Keywords

Cite

@article{arxiv.2304.14010,
  title  = {The noncommutative geometry of frame bundles},
  author = {Stefan Wagner},
  journal= {arXiv preprint arXiv:2304.14010},
  year   = {2025}
}

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