English

On the optimal multilinear Bohnenblust--Hille constants

Functional Analysis 2013-02-05 v1

Abstract

The upper estimates for the optimal constants of the multilinear Bohnenblust--Hille inequality obtained in [J. Funct. Anal. 264 (2013), 429--463] are here improved to: {0.1cm} {enumerate} For real scalars: Kn2(n1)0.526322K_{n}\leq\sqrt{2}(n-1)^{0.526322}. For complex scalars: Kn2π(n1)0.304975K_{n}\leq\frac{2}{\sqrt{\pi}}(n-1)^{0.304975}.{enumerate} {0.1cm} \noindent We also obtain sharper estimates for higher values of nn. For instance, Kn<1.30379(n1)0.526322 K_{n}<1.30379(n-1) ^{0.526322} for real scalars and n>28n>2^{8} and Kn<0.99137(n1)0.304975 K_{n}<0.99137(n-1) ^{0.304975} for complex scalars and n>215.n > 2^{15}.

Keywords

Cite

@article{arxiv.1302.0517,
  title  = {On the optimal multilinear Bohnenblust--Hille constants},
  author = {D. Nunez-Alarcon and D. Pellegrino and J. B. Seoane-Sepulveda and D. M. Serrano-Rodriguez},
  journal= {arXiv preprint arXiv:1302.0517},
  year   = {2013}
}
R2 v1 2026-06-21T23:19:56.953Z