On the Blaschke-Lebesgue theorem for the Cheeger constant via areas and perimeters of inner parallel sets - Archive ouverte HAL Access content directly
Preprints, Working Papers, ... Year : 2023

On the Blaschke-Lebesgue theorem for the Cheeger constant via areas and perimeters of inner parallel sets

Abstract

The first main result presented in the paper shows that the perimeters of inner parallel sets of planar shapes having a given constant width are minimal for the Reuleaux triangles. This implies that the areas of inner parallel sets and, consequently, the inverse of the Cheeger constant are also minimal for the Reuleaux triangles. Proofs use elementary geometry arguments and are based on direct comparisons between general constant width shapes and the Reuleaux triangle.
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Dates and versions

hal-04045140 , version 1 (24-03-2023)
hal-04045140 , version 2 (27-03-2023)

Identifiers

  • HAL Id : hal-04045140 , version 2

Cite

Beniamin Bogosel. On the Blaschke-Lebesgue theorem for the Cheeger constant via areas and perimeters of inner parallel sets. 2023. ⟨hal-04045140v2⟩
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