École Polytechnique

An Introduction To Compressive Sampling

Conventional approaches to sampling signals or images follow Shannon's theorem: the sampling rate must be at least twice the maximum frequency present in the signal (Nyquist rat...

Adaptive greedy approximations

Measurement of Separate Cosmic-Ray Electron and Positron Spectra with the Fermi Large Area Telescope

We measured separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope. Because the instrument does not have an onboard magnet, we distinguish the two...

Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope

The dwarf spheroidal satellite galaxies of the Milky Way are some of the most dark-matter-dominated objects known. Due to their proximity, high dark matter content, and lack of ...

Mesure de Lebesgue et Nombre de Rotation

Electron reconstruction in CMS