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Banach Lie groupoid of partial isometries over restricted Grassmannian

Differential Geometry 2025-04-07 v2 Functional Analysis

Abstract

The set of partial isometries in a W*-algebra possesses a structure of Banach Lie groupoid. In this paper the differential structure on the set of partial isometries over the restricted Grassmannian is constructed, which makes it into a Banach Lie groupoid.

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Cite

@article{arxiv.2404.12847,
  title  = {Banach Lie groupoid of partial isometries over restricted Grassmannian},
  author = {Tomasz Goliński and Grzegorz Jakimowicz and Aneta Sliżewska},
  journal= {arXiv preprint arXiv:2404.12847},
  year   = {2025}
}

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13 pages