OAI/GroupTheory/PolycyclicRecognition/Geometry/IntegratedCartanRotations.lean

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7 declarations, 0 contain sorry, 0 declared as axioms

Compact Cartan rotations on the original simply connected group

  1. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.cartan_conjugation_mem line 28

    Source comment

    The actual tangent conjugation preserves the nilpotent ideal.
    theorem cartan_conjugation_mem (h : H) (x : T.kernelIdeal) :
        adjointLinearMap (E := E) (G := G) (Exp h) (x : GroupLieAlgebra (𝓘(ℝ,E)) G) ∈ T.kernelIdeal := by
    …

    Mentions: OAI.PolycyclicRecognition.adjointLinearMap

  2. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.action_cartan_exponential line 41
  3. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.expN_surjective line 50
  4. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.expD_surjective line 61
  5. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.rotation_commutes_action line 75
  6. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.rotation_fixes_overlap line 94

    Source comment

    The compact rotations fix the entire overlap of the two actual factors.
    theorem rotation_fixes_overlap
        (α : realRotationTorus (GroupLieAlgebra (𝓘(ℝ, E)) G) H →* MulAut F.N.carrier)
        (hα : ∀ z x, α z (F.ExpN (F.N.equiv x)) =
          F.ExpN (F.N.equiv (T.nilradicalRotation H z x))) :
        ∀ z n d, F.inclusionN n = F.inclusionD d → α z n = n := by
    …

    Mentions: OAI.PolycyclicRecognition.realRotationTorus

  7. theorem OAI.PolycyclicRecognition.ComplexWeightFactorModel.exists_compact_rotation_action line 115