OAI/GroupTheory/Thompson/AnalyticCorrection.lean

GitHub source file

11 declarations, 0 contain sorry, 0 declared as axioms

Global gluing of the explicit Hilbert correction

The cutoff tails tend to zero at the actual tube boundary. These estimates give the mixed inside/outside case; a uniform bound on the additive change handles distant pairs. Together with the local tube estimate, this covers every pair of points, including the boundary itself.

  1. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.rotated_residual_sub_bound line 28
  2. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.change_bound line 34
  3. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.change_uniform_bound line 51
  4. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.change_tail_bound line 62
  5. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.radius_gap_le line 81

    Source documentation

    Distance to an outside point controls the remaining radius of the tube.

    theorem radius_gap_le (x : C.tube) {y : E} (hy : y ∉ C.tube) :
        C.rho - ‖C.residual x‖ ≤ ‖(x : E) - y‖ := by
    …
  6. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.inside_outside_bound line 93
  7. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.G_sub_self_bound line 111
  8. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.G_distant_bound line 120

    Source documentation

    The distant-pair estimate uses only the bounded additive change.

    theorem G_distant_bound (x y : E) (hxy : C.rho ≤ ‖x - y‖) :
        ‖D.G x - D.G y‖ ≤ (5 + 7 / (8 * C.rho)) * ‖x - y‖ := by
    …
  9. def OAI.ThompsonNonamenability.Analytic.CorrectionData.lipschitzConstant line 138

    Source documentation

    A finite positive constant valid for all pairs in the ambient Hilbert space.

    def lipschitzConstant (_ : CorrectionData C) : ℝ :=
    …

    Mentions: OAI.ThompsonNonamenability.Analytic.CorrectionData

  10. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.lipschitzConstant_pos line 141
  11. theorem OAI.ThompsonNonamenability.Analytic.CorrectionData.G_lipschitz line 144