OAI/GroupTheory/PolycyclicRecognition/Algebra/RescaledFixedTranslation.lean
1 declarations, 0 contain sorry, 0 declared as axioms
Fixed group moves disappear in positively weighted word charts
- theorem
OAI.PolycyclicRecognition.rescaled_fixed_translation_tendstoline 21Source documentation
The coordinate maps of every fixed right move tend to the identity in the compact-open topology. This is the part of Cartan scaling needed by the density sampling argument; it does not require a preconstructed graded Lie group or any metric scaling premise.
theorem rescaled_fixed_translation_tendsto {I L G : Type*} [Fintype I] [DecidableEq I] [LieRing L] [LieAlgebra ℝ L] [Group G] (X : I → L) {k c : ℕ} (hk : lowerCentralSeries ℝ L L k = ⊥) (hletters : ∀ i : I, FreeMagma.of i ∈ boundedBracketWords k) (b₀ : Basis (Fin (finrank ℝ L)) ℝ L) (s : I → ℝ) (hs : ∀ i, 0 < s i) (β : WordBasisSelections X (boundedBracketWords k)) (hβ : IsMaximizingColumnBasis (wordListCoordinates X (boundedBracketWords k) b₀) (fun w => bracketWordExponent s w) β.val) (Exp : L → G) (hinj : Function.Injective Exp) (hzero : Exp 0 = 1) (hneg : ∀ x, Exp (-x) = (Exp x)⁻¹) …Mentions: OAI.PolycyclicRecognition.boundedBracketWords, OAI.PolycyclicRecognition.WordBasisSelections, OAI.PolycyclicRecognition.IsMaximizingColumnBasis, OAI.PolycyclicRecognition.wordListCoordinates, OAI.PolycyclicRecognition.bracketWordExponent