17 citations
- Centre de Physique ThéoriqueFR35 papers
- Aix-Marseille UniversitéFR25 papers
- Université de ToulonFR22 papers
- Aalborg UniversityDK4 papers
- Institut de Mathématiques de MarseilleFR4 papers
- Institut de Mécanique et d'Ingénierie de BordeauxFR4 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Château GombertFR3 papers
- Central European UniversityAT2 papers
- Centre Interdisciplinaire de Nanoscience de MarseilleFR2 papers
- Colorado CollegeUS2 papers
- HUN-REN Alfréd Rényi Institute of MathematicsHU2 papers
72 papers
Lower bounds in -rational approximation to Blaschke products
Laurent Baratchart, Alexander Borichev, Sylvain Chevillard +2
We derive lower bounds in best rational approximation of given degree to finite Blaschke products, in the Hardy space of the unit disk. We first consider approximation to $z^…
Magnetic-field-induced magnon portfolio in a van der Waals magnet
T. Riccardi, F. Le Mardélé, L. A. Veyrat de Lachenal +12
Magnonic excitations are investigated in chromium oxychloride (CrOCl), a van der Waal (vdW) antiferromagnet prone to a multitude of magnetic phase transitions, with absorption expe…
Asymptotic sharpness of a Nikolskii type inequality for rational functions in the Wiener algebra
Benjamin Auxemery, Alexander Borichev, Rachid Zarouf
We establish the asymptotic sharpness of a Nikolskii type inequality proved by A. Baranov and R. Zarouf for rational functions in the Wiener algebra of absolutely convergent Fo…
Group adaptation drives opinion dynamics in higher-order networks
Cosimo Agostinelli, Marco Mancastroppa, Alain Barrat
In modern interconnected societies, opinions and beliefs can quickly spread across large populations, giving rise to collective behaviors such as the adoption of social norms or po…
Accessing the Gluon Momentum Fraction of Nucleons through the Gradient Flow
Robert Edwards, Joe Karpie, Lorenzo Maio +5
We calculate the gluon momentum fraction of the nucleon using lattice quantum chromodynamics (QCD), with a nonperturbative renormalization technique based on the gradient flow. The…
Simultaneous polynomial approximation in Beurling-Sobolev spaces via Blaschke products
Stéphane Charpentier, Nicolas Espoullier, Rachid Zarouf
Assuming that as , we establish a lemma on simultaneous polynomial approximation in Orlicz-Beurling-Sobolev spaces . These spaces, endowed with the L…