Equal area partitions of the sphere with diameter bounds, via optimal transport

Abstract We prove existence of equal area partitions of the unit sphere via optimal transport methods, accompanied by diameter bounds written in terms of Monge–Kantorovich distances. This can be used to obtain bounds on the expectation of the maximum diameter of partition sets, when points are uniformly sampled from the sphere. An application to the computation of sliced Monge–Kantorovich distances is also presented.

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Publication Details

Journal
Bulletin of the London Mathematical Society
Published
2025-03-05
DOI
https://doi.org/10.1112/blms.70045
Primary Topic
Geometric Analysis and Curvature Flows
Type
article
Field-Weighted Citation Impact
0.00

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article

Equal area partitions of the sphere with diameter bounds, via optimal transport

Jun Kitagawa, Asuka Takatsu
Bulletin of the London Mathematical Society
Geometric Analysis and Curvature Flows
article

Equal area partitions of the sphere with diameter bounds, via optimal transport

Jun Kitagawa, Asuka Takatsu
article en

Abstract

Abstract We prove existence of equal area partitions of the unit sphere via optimal transport methods, accompanied by diameter bounds written in terms of Monge–Kantorovich distances. This can be used to obtain bounds on the expectation of the maximum diameter of partition sets, when points are uniformly sampled from the sphere. An application to the computation of sliced Monge–Kantorovich distances is also presented.

Bulletin of the London Mathematical SocietyVol. 57(5)
RIKEN Center for Advanced Intelligence Project (JP), Tokyo Metropolitan University (JP), Michigan State University (US)
National Science Foundation, Japan Society for the Promotion of Science
Openalex Percentile: Top 93%
Geometric Analysis and Curvature Flows
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