Towards sharp bohnenblust–hille constants

D Pellegrino, EV Teixeira - Communications in Contemporary …, 2018 - World Scientific
We investigate the optimality problem associated with the best constants in a class of
Bohnenblust–Hille-type inequalities for m-linear forms. While germinal estimates indicated …

Optimal Hardy–Littlewood type inequalities for m-linear forms on spaces with

G Araujo, D Pellegrino - Archiv der Mathematik, 2015 - Springer
Abstract The Hardy–Littlewood inequalities for m-linear forms on ℓ _ p ℓ p spaces are stated
for p> mp> m. In this paper, among other results, we investigate similar results for 1 ≦ p ≦ …

[HTML][HTML] The optimal constants of the mixed (ℓ1, ℓ2)-Littlewood inequality

D Pellegrino - Journal of Number Theory, 2016 - Elsevier
Text In this note, among other results, we find the optimal constants of the generalized
Bohnenblust–Hille inequality for m-linear forms over R and with multiple exponents (1, 2 …

Anisotropic regularity principle in sequence spaces and applications

N Albuquerque, L Rezende - Communications in Contemporary …, 2018 - World Scientific
We refine a recent technique introduced by Pellegrino, Santos, Serrano and Teixeira and
prove a quite general anisotropic regularity principle in sequence spaces. As applications …

[HTML][HTML] Lower bounds for the constants of the Hardy–Littlewood inequalities

G Araújo, D Pellegrino - Linear Algebra and its Applications, 2014 - Elsevier
Given an integer m≥ 2, the Hardy–Littlewood inequality (for real scalars) says that for all 2
m≤ p≤∞, there exists a constant C m, p R≥ 1 such that, for all continuous m-linear forms …

On the constants of the Bohnenblust–Hille and Hardy–Littlewood inequalities

G Araújo, D Pellegrino - Bulletin of the Brazilian Mathematical Society …, 2017 - Springer
Abstract For K= RK= R or CC, the Hardy–Littlewood inequality for m-linear forms asserts that
for 4 ≤ 2m ≤ p ≤ ∞ 4≤ 2 m≤ p≤∞ there exists a constant C_ m, p^ K ≥ 1 C m, p K≥ 1 …

[HTML][HTML] A Gale–Berlekamp permutation-switching problem in higher dimensions

G Araújo, D Pellegrino - European Journal of Combinatorics, 2019 - Elsevier
Let an n× n array aij of lights be given, each either on (when aij= 1) or off (when aij=− 1). For
each row and each column there is a switch so that if the switch is pulled (xi=− 1 for row i …

On summability of multilinear operators and applications

N Albuquerque, G Araujo, W Cavalcante, T Nogueira… - 2018 - projecteuclid.org
This article has two clear motivations, one technical and one practical. The technical
motivation unifies in a single formulation a huge family of inequalities that have been …

[HTML][HTML] Equivalent norms in polynomial spaces and applications

G Araújo, P Jiménez-Rodríguez… - Journal of Mathematical …, 2017 - Elsevier
In this paper, equivalence constants between various polynomial norms are calculated. As
an application, we also obtain sharp values of the Hardy–Littlewood constants for 2 …

The optimal multilinear Bohnenblust–Hille constants: a computational solution for the real case

F Vieira Costa Júnior - Numerical Functional Analysis and …, 2018 - Taylor & Francis
Abstract The Bohnenblust–Hille inequality for m-linear forms was proven in 1931 as a
generalization of the famous 4/3-Littlewood inequality. The optimal constants (or at least …