OAI/GroupTheory/PolycyclicRecognition/Analysis/NilpotentHaarSymmetry.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Inversion and right invariance of any nilpotent Haar normalization

  1. theorem OAI.PolycyclicRecognition.nilpotent_haar_isInvInvariant line 20

    Source documentation

    Negation in exponential coordinates and uniqueness of Haar measure prove inversion invariance for every Haar normalization.

    theorem nilpotent_haar_isInvInvariant
        (haar : NilpotentExponentialHaarInput E G)
        (Exp : GroupLieAlgebra (𝓘(ℝ, E)) G → G) (hExp : IsGroupExponential Exp)
        (hnil : LieRing.IsNilpotent (GroupLieAlgebra (𝓘(ℝ, E)) G))
        (μ : Measure G) [μ.IsHaarMeasure] : μ.IsInvInvariant := by
    …

    Mentions: OAI.PolycyclicRecognition.NilpotentExponentialHaarInput

  2. theorem OAI.PolycyclicRecognition.nilpotent_haar_isMulRightInvariant line 53

    Source documentation

    Inversion changes left Haar invariance into right invariance.

    theorem nilpotent_haar_isMulRightInvariant
        (haar : NilpotentExponentialHaarInput E G)
        (Exp : GroupLieAlgebra (𝓘(ℝ, E)) G → G) (hExp : IsGroupExponential Exp)
        (hnil : LieRing.IsNilpotent (GroupLieAlgebra (𝓘(ℝ, E)) G))
        (μ : Measure G) [μ.IsHaarMeasure] : μ.IsMulRightInvariant := by
    …

    Mentions: OAI.PolycyclicRecognition.NilpotentExponentialHaarInput