English

Optimal Young's inequality and its converse:a simple proof

Functional Analysis 2016-09-07 v1

Abstract

We give a new proof of the sharp form of Young's inequality for convolutions, first proved by Beckner [Be] and Brascamp-Lieb [BL]. The latter also proved a sharp reverse inequality in the case of exponents less than 11. Our proof is simpler and gives Young's inequality and its converse altogether.

Keywords

Cite

@article{arxiv.math/9704210,
  title  = {Optimal Young's inequality and its converse:a simple proof},
  author = {Franck Barthe},
  journal= {arXiv preprint arXiv:math/9704210},
  year   = {2016}
}