A. Karoui

activity

20102023

most citedSpectral Decay of Time and Frequency Limiting Operator

27 citations · 122 across the 18 of their papers we have counts for

collaborators

Showing 2017Show all

2 papers · 1 filter

math.CA2017

Random Discretization of the Finite Fourier Transform and Related Kernel Random Matrices

Aline Bonami, Abderrazek Karoui

This paper is centred on the spectral study of a Random Fourier matrix, that is an $n \times n$ matrix $A$ whose $(j, k)$ entries are $exp (2 iπ m X_{j} Y_{k})$ , with $X_{j}$ and $Y_{k}$ two i…

math.CA2017

The finite Hankel transform operator: Some explicit and local estimates of the eigenfunctions and eigenvalues decay rates

Mourad Boulsane, Abderrazek Karoui

For fixed real numbers $c > 0,$ $α > - \frac{1}{2},$ the finite Hankel transform operator, denoted by $H_{c}^{α}$ is given by the integral operator defined on $L^{2} (0, 1)$ with kern…