Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Fadili, M."'
This paper concerns the null controllability for a class of stochastic degenerate parabolic equations. We first establish a global Carleman estimate for a linear forward stochastic degenerate equation with multiplicative noise. Using this estimate we
Externí odkaz:
http://arxiv.org/abs/2202.10070
In this paper we study the null controllability of some non diagonalizable degenerate parabolic systems of PDEs, we assume that the diffusion, coupling and controls matrices are constant and we characterize the null controllability by an algebraic co
Externí odkaz:
http://arxiv.org/abs/1808.07524
In this paper we will generalize the Kalman rank condition for the null controllability to $n$-coupled linear degenerate parabolic systems with constant coefficients, diagonalizable diffusion matrix, and $m$-controls. For that we prove a global Carle
Externí odkaz:
http://arxiv.org/abs/1705.03044
In this paper, we investigate in a unified way the structural properties of solutions to inverse problems. These solutions are regularized by the generic class of semi-norms defined as a decomposable norm composed with a linear operator, the so-calle
Externí odkaz:
http://arxiv.org/abs/1304.4407
Sparsity has been recently introduced in cosmology for weak-lensing and CMB data analysis for different applications such as denoising, component separation or inpainting (i.e. filling the missing data or the mask). Although it gives very nice numeri
Externí odkaz:
http://arxiv.org/abs/1302.2758
Reconstruction of the CMB in the Galactic plane is extremely difficult due to the dominant foreground emissions such as Dust, Free-Free or Synchrotron. For cosmological studies, the standard approach consists in masking this area where the reconstruc
Externí odkaz:
http://arxiv.org/abs/1210.6587
This paper studies the problem of reconstructing sparse or compressible signals from compressed sensing measurements that have undergone nonuniform quantization. Previous approaches to this Quantized Compressed Sensing (QCS) problem based on Gaussian
Externí odkaz:
http://arxiv.org/abs/1206.6003
Autor:
Becker, Stephen, Fadili, M. Jalal
Publikováno v:
NIPS (2012), pp. 2627--2635
A new result in convex analysis on the calculation of proximity operators in certain scaled norms is derived. We describe efficient implementations of the proximity calculation for a useful class of functions; the implementations exploit the piece-wi
Externí odkaz:
http://arxiv.org/abs/1206.1156
The cosmic microwave background (CMB) power spectrum is a powerful cosmological probe as it entails almost all the statistical information of the CMB perturbations. Having access to only one sky, the CMB power spectrum measured by our experiments is
Externí odkaz:
http://arxiv.org/abs/1202.4908
One of the main challenges of modern cosmology is to understand the nature of dark energy. The Integrated Sachs-Wolfe (ISW) effect is sensitive to dark energy and presents an independent signature of dark energy in the absence of modified gravity and
Externí odkaz:
http://arxiv.org/abs/1010.2192