OAI/GroupTheory/PolycyclicRecognition/Geometry/SmoothRotationalTwist.lean
7 declarations, 0 contain sorry, 0 declared as axioms
The smooth group structure on an invariant rotational graph
- def
OAI.PolycyclicRecognition.rotationalTwistChartedSpaceline 22Source documentation
The atlas comes from the original group through the graph projection.
def rotationalTwistChartedSpace : ChartedSpace E (rotationalTwist α τ hinv) := …
- theorem
OAI.PolycyclicRecognition.rotationalTwist_isManifoldline 28 - theorem
OAI.PolycyclicRecognition.contMDiff_rotationalTwistProjectionline 32 - theorem
OAI.PolycyclicRecognition.contMDiff_rotationalTwistGraphline 37 - theorem
OAI.PolycyclicRecognition.contMDiff_rotationalTwistMulline 45 - theorem
OAI.PolycyclicRecognition.contMDiff_rotationalTwistInvline 64 - theorem
OAI.PolycyclicRecognition.rotationalTwistLieGroupline 83Source documentation
Smoothness of the action along the inverse character is sufficient for both smooth group operations on the graph.
theorem rotationalTwistLieGroup : LieGroup (𝓘(ℝ,E)) ∞ (rotationalTwist α τ hinv) where …