OAI/GroupTheory/PolycyclicRecognition/Geometry/RepresentationKernelAdjoint.lean
2 declarations, 0 contain sorry, 0 declared as axioms
A faithful Lie representation detects the adjoint action of its group kernel
- theorem
OAI.PolycyclicRecognition.adjointLinearMap_eq_id_of_representation_kernelline 18 - theorem
OAI.PolycyclicRecognition.lieHom_adjoint_of_exponential_intertwiningline 51Source documentation
Exponential compatibility also intertwines the full adjoint action.
theorem lieHom_adjoint_of_exponential_intertwining {Exp : GroupLieAlgebra (๐(โ, E)) G โ G} (hExp : IsGroupExponential Exp) (j : GroupLieAlgebra (๐(โ, E)) G โโโ โโ A) (ฯ : G โ* Aหฃ) (he : โ x, ฯ (Exp x) = algebraExpUnit (j x)) (g : G) (x : GroupLieAlgebra (๐(โ, E)) G) : j (adjointLinearMap (E := E) g x) = (ฯ g : A) * j x * (ฯ g)โปยน := by โฆMentions: OAI.PolycyclicRecognition.algebraExpUnit, OAI.PolycyclicRecognition.adjointLinearMap