OAI/Analysis/CircleDomains/Probability/PathImageOccupation.lean
5 declarations, 0 contain sorry, 0 declared as axioms
The Hausdorff measure of a path image counts each point once; arclength occupation counts every traversal. Compact time sets and fine dyadic covers prove the resulting measure domination without an injectivity assumption.
- lemma
OAI.CircleDomainRigidity.eventually_dyadic_cells_inside_compactline 18 - lemma
OAI.CircleDomainRigidity.exists_small_dyadic_images_geline 32 - lemma
OAI.CircleDomainRigidity.path_hausdorff_image_compact_le_openline 50 - lemma
OAI.CircleDomainRigidity.path_hausdorff_image_compact_le_lengthline 96 - theorem
OAI.CircleDomainRigidity.path_image_hausdorff_le_occupationline 105Source documentation
A curve's occupation dominates Hausdorff measure on its image, even when the curve retraces itself.
theorem path_image_hausdorff_le_occupation (γ : RectifiablePath X) : (μH[1] : Measure X).restrict (range γ.val) ≤ pathOccupation γ := by …Mentions: OAI.CircleDomainRigidity.RectifiablePath, OAI.CircleDomainRigidity.pathOccupation