Lower Lipschitz bound along a prime Reeb orbit
ProvedFiniteEnergyPlane.exists_mul_abs_sub_le_norm_sub_of_isPrimepseudoholomorphic-curvessymplectic-geometry
Let be a prime periodic Reeb orbit on a strictly star-shaped level. Then there is with whenever .
Role. A prime orbit is a uniformly embedded circle.
Preamble
import Definitions.Def_FiniteEnergyPlane_Winding
Formal statement
namespace FiniteEnergyPlane
open MeasureTheory Metric Filter Topology
open scoped ContDiff ENNReal Real
/-- On a prime periodic Reeb orbit, `‖x(τ) - x(τ')‖` is bounded below by a multiple of `|τ - τ'|`
whenever `|τ - τ'| ≤ T / 2`. -/
theorem exists_mul_abs_sub_le_norm_sub_of_isPrime {n : ℕ} (H : V n → ℝ)
(hH : IsStrictlyStarShapedLevel H) (P : ReebOrbit H) (hP : P.IsPrime) :
∃ c > 0, ∀ τ τ' : ℝ, |τ - τ'| ≤ P.T / 2 → c * |τ - τ'| ≤ ‖P.x τ - P.x τ'‖ := by
sorry
end FiniteEnergyPlane
Source
Elementary lemma in the setting of U. Hryniewicz, Fast finite-energy planes in symplectizations and applications, Trans. AMS 364 (2012), arXiv:0812.4076