4 papers
Regularity of the Radon-Nikodym Derivative of a Convolution of Orbital Measures on Noncompact Symmetric Spaces
Boudjemaa Anchouche
Let be a Riemannian symmetric space of noncompact type, and let , be some orbital measures on (see the definition below). The aim of this paper is to…
Convolution of -orbital Measures on Complex Grassmannians
Mahmoud Al-Hashami, Boudjemâa Anchouche
Let and be integers such that and let\\ be the corresponding complex Grassmannian. The aim of this paper is to e…
Ramanujan-Nagell's Equation and Some of its Variations
Boudjemâa Anchouche
The paper consists of two parts. The aim of the first, and main, part is to explain, in an elementary way, Hasse's proof of Ramanujan-Nagell's Theorem. In the second part, we formu…
Orbital measures on SU(2)/SO(2)
Boudjemaa Anchouche, Sanjiv Kumar Gupta, Alain Plagne
We let U=SU(2) and K=SO(2) and denote N_{U}(K) the normalizer of K in U. For a an element of U\ N_{U} (K), we let μ_{a} be the normalized singular measure supported in KaK. For p a…