76 citations
- Institut Camille JordanFR5 papers
- Institut de Chimie Moléculaire et des Matériaux d'OrsayFR5 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2 papers
- European Synchrotron Radiation FacilityFR2 papers
- Institut de minéralogie, de physique des matériaux et de cosmochimieFR2 papers
- Institute for Magnetospheric PhysicsUS2 papers
- International Center for Transitional JusticeUS2 papers
- Laboratoire d’Analyse et de Mathématiques AppliquéesFR2 papers
- Max Planck Institute of Quantum OpticsDE2 papers
- Université de MontpellierFR2 papers
- Université Paris-Est CréteilFR2 papers
24 papers
One-dimensional self-organization of water molecules in proton conducting Andersson-Wadsley titanates
Mathilde Arnaud, Guillaume Benas, Narimane Meziani +13
Layered alkali titanates with M 2 Ti 2 O 5 chemical formula (MTO, M=K,Rb) belonging to the Andersson-Wadsley perovskite family spontaneously incorporate water to form MTO.(H 2 O) x…
Non-asymptotic Tail Bounds for the Kostlan--Shub--Smale Field: Tensor PCA and Spherical -Spin Complexity
Jean-Marc Azaïs, Federico Dalmao, Yohann De Castro
This paper builds a hierarchy of explicit, non-asymptotic tail bounds for the supremum of the Kostlan--Shub--Smale (KSS) random field on the sphere, and applies it to two problems:…
Fast Spawn\&Prune (FS\&P): Global convergence of stochastic conic particle gradient descent via birth/death process
Yohann De Castro, Sébastien Gadat, Clément Marteau
We investigate the global optimization of the objective function arising in continuous sparse regression, specifically the Beurling LASSO (BLASSO), over the space of measures. Whil…
Derivative formula for capacities
Amine Asselah, Bruno Schapira, Perla Sousi
We obtain a derivative formula for various notions of capacity. Namely we identify the second order term in the asymptotic expansion of the capacity of a union of two sets, as thei…
Metallurgy at the nanoscale: domain walls in nanoalloys
Grégoire Breyton, Hakim Amara, Jaysen Nelayah +8
In binary alloys, domain walls play a central role not only on the phase transitions but also on their physical properties and were at the heart of the 70's metallurgy research. Wh…
Gaussian Mixture Model with unknown diagonal covariances via continuous sparse regularization
Romane Giard, Yohann de Castro, Clément Marteau
This paper addresses the statistical estimation of Gaussian Mixture Models (GMMs) with unknown diagonal covariances from independent and identically distributed samples. We employ…