English

A quantitative stability result for the Pr\'ekopa-Leindler inequality for arbitrary measurable functions

Functional Analysis 2022-01-28 v1 Metric Geometry

Abstract

We prove that if a triplet of functions satisfies almost equality in the Pr\'ekopa-Leindler inequality, then these functions are close to a common log-concave function, up to multiplication and rescaling. Our result holds for general measurable functions in all dimensions, and provides a quantitative stability estimate with computable constants.

Keywords

Cite

@article{arxiv.2201.11564,
  title  = {A quantitative stability result for the Pr\'ekopa-Leindler inequality for arbitrary measurable functions},
  author = {Károly J. Böröczky and Alessio Figalli and João P. G. Ramos},
  journal= {arXiv preprint arXiv:2201.11564},
  year   = {2022}
}

Comments

37 pages, 0 figures

R2 v1 2026-06-24T09:05:36.340Z