Regularity of the Radon-Nikodym Derivative of a Convolution of Orbital Measures on Noncompact Symmetric Spaces

Boudjemaa Anchouche

Let $G/K$ be a Riemannian symmetric space of noncompact type, and let ${\nu }_{a_j}$, $j=1,...,r$ be some orbital measures on $G$ (see the definition below). The aim of this paper is to…