aDepartamento de Matemáticas, Universidad Autónoma de Madrid, 28049 Madrid, Spain;bInstituto de Matemáticas y Física Fundamental, Consejo Superior de Investigaciones Científicas, C/Serrano 123, Madrid 28006, Spain
Abstract:
We prove several weighted inequalities involving the Hilbert transform of a function f(x) and its derivative. One of those inequalities,
is used to show finite time blow-up for a transport equation with nonlocal velocity.