OAI/GroupTheory/PolycyclicRecognition/Geometry/RealTorusSmoothRepresentation.lean
4 declarations, 0 contain sorry, 0 declared as axioms
Smoothness of the rotational representation along a Lie group character
- def
OAI.PolycyclicRecognition.realTorusUnitActionline 17Source documentation
The compact rotations as units of the continuous endomorphism algebra.
def realTorusUnitAction : realRotationTorus L H →* (L →L[ℝ] L)ˣ where …
- theorem
OAI.PolycyclicRecognition.realTorusUnitAction_applyline 30 - theorem
OAI.PolycyclicRecognition.continuous_realTorusUnitActionline 33 - theorem
OAI.PolycyclicRecognition.contMDiff_realTorusRepresentationline 52Source documentation
A continuous compact rotation character of a Lie group has a smooth linear representation. No manifold structure on the compact torus is needed.
theorem contMDiff_realTorusRepresentation {Exp : GroupLieAlgebra (𝓘(ℝ,E)) G → G} (hExp : IsGroupExponential Exp) (q : G →* realRotationTorus L H) (hq : Continuous q) : ContMDiff (𝓘(ℝ,E)) (𝓘(ℝ,L →L[ℝ] L)) ∞ (fun g => (realTorusUnitAction H (q g) : L →L[ℝ] L)) := by …Mentions: OAI.PolycyclicRecognition.realRotationTorus, OAI.PolycyclicRecognition.realTorusUnitAction