6 citations · 9 across the 12 of their papers we have counts for
14 papers
Sparsity-preserving means on a homogeneous convex cone
Khalid Koufany
We study two means on the five-dimensional Vinberg cone , viewed as a sparse cone of positive definite matrices. The Cholesky-Vinberg mean is obtained from the simply…
Mostow-Type Decompositions and Geometric Means for Symmetric Cones
Khalid Koufany, Yongdo Lim
Motivated by Mostow's decomposition theorem for positive definite matrices and by subsequent matrix factorizations involving geometric means, we establish a Mostow-type decompositi…
Strichartz's conjecture for the spinor bundle over the real hyperbolic space
Abdelhamid Boussejra, Khalid Koufany
Let denote the real hyperbolic space realized as the symmetric space . In this paper, we provide a characterization for the image of the Poiss…
A characterization of the -range of the generalized spectral projections related to the Hodge-de Rham Laplacian
Abdelhamid Boussejra, Khalid Koufany
Let be the real hyperbolic space. In this paper, we present a characterization of the -range of the generalized spectral projections on the bundle of differen…
The source operator method: an overview
Salem Ben Saïd, Jean-Louis Clerc, Khalid Koufany
This is an overview on the {source operator method} which leads to the construction of symmetry breaking differential operators (SBDO) in the context of tensor product of two princ…
On Poisson transforms of differential forms on real hyperbolic spaces
Salem Bensaïd, Abdelhamid Boussejra, Khalid Koufany
This paper is concerned with the Poisson transform of differential forms on the hyperbolic space . Consider an integer such that and l…