A class of Fourier multipliers on H¹(ℝ²)
Volume 140 / 2000
Studia Mathematica 140 (2000), 289-298
DOI: 10.4064/sm-140-3-289-298
Abstract
An integral criterion for being an $H^1(ℝ^2)$ Fourier multiplier is proved. It is applied in particular to suitable regular functions which depend on the product of variables.
