4.5 Article

Orientation and Symmetries of Alexandrov Spaces with Applications in Positive Curvature

Journal

JOURNAL OF GEOMETRIC ANALYSIS
Volume 27, Issue 2, Pages 1636-1666

Publisher

SPRINGER
DOI: 10.1007/s12220-016-9734-7

Keywords

Alexandrov geometry; Isometric group actions; Slice Theorem; Orientation

Categories

Funding

  1. US National Science Foundation
  2. CONACYT [SEP-106923]

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We develop two new tools for use in Alexandrov geometry: a theory of ramified orientable double covers and a particularly useful version of the Slice Theorem for actions of compact Lie groups. These tools are applied to the classification of compact, positively curved Alexandrov spaces with maximal symmetry rank.

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