Construction de p-multiplicateurs
Volume 105 / 1993
Studia Mathematica 105 (1993), 135-142
DOI: 10.4064/sm-105-2-135-142
Abstract
Using characteristic functions of polyhedra, we construct radial p-multipliers which are continuous over $ℝ^n$ but not continuously differentiable through $S^{n-1}$ and give a p-multiplier criterion for homogeneous functions over $ℝ^2$. We also exhibit fractal p-multipliers over the real line.