OAI/GroupTheory/PolycyclicRecognition/Analysis/TranslationCovering.lean

GitHub source file

6 declarations, 0 contain sorry, 0 declared as axioms

A covering from two-sided translation coordinates

A local group parameterization whose left and right translations are global homeomorphisms is a covering map. No associativity on the parameter space is needed for this step.

  1. theorem OAI.PolycyclicRecognition.kernel_discrete line 29
  2. theorem OAI.PolycyclicRecognition.right_inverse_fiber line 40
  3. def OAI.PolycyclicRecognition.translationFiberHomeomorph line 49
  4. theorem OAI.PolycyclicRecognition.evenlyCovered_one_of_translations line 82
  5. theorem OAI.PolycyclicRecognition.covering_of_translations line 93
  6. def OAI.PolycyclicRecognition.homeomorphOfSimplyConnectedCovering line 110

    Source documentation

    A covering of a simply connected space from a connected space has a continuous global inverse.

    def homeomorphOfSimplyConnectedCovering [PreconnectedSpace V]
        [SimplyConnectedSpace G] [LocallyPathConnectedSpace G]
        (cov : IsCoveringMap f) : V ≃ₜ G := by
    …