R. Banuelos et al., A Brascamp-Lieb-Luttinger-type inequality and applications to symmetric stable processes, P AM MATH S, 129(10), 2001, pp. 2997-3008
We derive an inequality for multiple integrals from which we conclude vario
us generalized isoperimetric inequalities for Brownian motion and symmetric
stable processes in convex domains of fixed inradius. Our multiple integra
l inequality is a replacement for the classical inequality of H. J. Brascam
p, E. H. Lieb and J. M. Luttinger, where instead of fixing the volume of th
e domain one fixes its inradius.