OAI/GroupTheory/PolycyclicRecognition/Geometry/CartanResidualBounds.lean
5 declarations, 0 contain sorry, 0 declared as axioms
Bounds for the actual residual automorphism
We identify the residual automorphism on a nonzero root with the analytic exponential already estimated there. This removes a separate bound premise for the automorphisms constructed from the Cartan action.
- theorem
OAI.PolycyclicRecognition.rootInIdeal_residual_applyline 34Source documentation
Inclusion intertwines the root residual operator and the actual ideal derivation.
theorem rootInIdeal_residual_apply (h : H) (v : rootSpace H χ) : CartanWordModel.rootInIdeal χ hχ ((rootAction H χ h - χ h • 1) v) = cartanIdealResidualDerivation T H h (CartanWordModel.rootInIdeal χ hχ v) := by …Mentions: OAI.PolycyclicRecognition.CartanWordModel.rootInIdeal, OAI.PolycyclicRecognition.rootAction, OAI.PolycyclicRecognition.cartanIdealResidualDerivation
- theorem
OAI.PolycyclicRecognition.rootInIdeal_residual_powline 43 - theorem
OAI.PolycyclicRecognition.rootResidual_pow_ambient_dimline 56Source documentation
The ambient dimension also truncates the analytic root operator.
theorem rootResidual_pow_ambient_dim (h : H) : (rootAction H χ h - χ h • 1) ^ finrank ℝ L = 0 := by …Mentions: OAI.PolycyclicRecognition.rootAction
- theorem
OAI.PolycyclicRecognition.rootInIdeal_residual_expline 70Source documentation
The polynomial Lie automorphism agrees with the analytic root residual exponential, so the earlier operator norm bounds apply to this automorphism.
theorem rootInIdeal_residual_exp (h : H) (v : rootSpace H χ) : CartanWordModel.rootInIdeal χ hχ ((NormedSpace.exp (rootAction H χ h - χ h • 1)) v) = cartanIdealResidualAutomorphism T H h (CartanWordModel.rootInIdeal χ hχ v) := by …Mentions: OAI.PolycyclicRecognition.CartanWordModel.rootInIdeal, OAI.PolycyclicRecognition.rootAction, OAI.PolycyclicRecognition.cartanIdealResidualAutomorphism
- theorem
OAI.PolycyclicRecognition.exists_residual_root_wordBasis_boundline 81Source documentation
A common polynomial bound in every unscaled word basis.
theorem exists_residual_root_wordBasis_bound (M : CartanWordModel H) : ∃ C : ℝ, 0 ≤ C ∧ ∀ (β : M.Bases) (h : H) (v : rootSpace H χ), ‖(WordBasisSelections.basis M.letter M.wordList β).equivFun (cartanIdealResidualAutomorphism T H h (CartanWordModel.rootInIdeal χ hχ v))‖ ≤ C * (1 + ‖(Module.finBasis ℝ H).equivFun h‖) ^ finrank ℝ (rootSpace H χ) * ‖(rootCoordinates H χ) v‖ := by …Mentions: OAI.PolycyclicRecognition.CartanWordModel, OAI.PolycyclicRecognition.WordBasisSelections.basis, OAI.PolycyclicRecognition.cartanIdealResidualAutomorphism, OAI.PolycyclicRecognition.CartanWordModel.rootInIdeal, OAI.PolycyclicRecognition.rootCoordinates