output
20112026
most citedThe impact of COVID-19 on the stock market crash risk in China

192 citations

33 papers

math.FA2026★ 2 cited

Hartman-Stampacchia theorem, Gale-Nikaido-Debreu lemma, and Brouwer and Kakutani fixed-point theorems

Pascal Gourdel, Cuong Le Van, Ngoc-Sang Pham +1

This paper uses the Hartman-Stampacchia theorems as the primary tool to prove the Gale-Nikaid{ô}-Debreu lemmas. It also establishes a cycle of equivalences among the Hartman-Stampa…

physics.soc-ph2026

SF2A Environmental Transition Commission: Chosen pieces from the survey 'French astronomy and astrophysics research activities in the face of the environmental crisis, from 2019 to 2024'

Faustine Cantalloube, Camille Noûs, A. Jolly +3

In 2025, the French Society for Astronomy \& Astrophysics (SF2A), gave the environmental transition commission the opportunity to share their considerations during a plenary sessio…

math.OC2026

Scheduling Ground-Based Telescope Observations with Uncertain Nights

Thomas Rahab Lacroix, Pierre Lemaire, Anne-Marie Lagrange +2

The observation of celestial objects is a fundamental activity in astronomy. Ground-based and space telescopes are used to gather electromagnetic radiation from space, allowing ast…

astro-ph.HE2026

High Energy Emission from the Galactic Center

Andrea Goldwurm, Maïca Clavel, Stefano Gabici +1

The center of the Galaxy is a prominent source in X-rays and gamma-rays. The study of its high-energy (HE) emission is crucial in understanding the physical phenomena taking place…

astro-ph.IM2026

SF2A Environmental Transition Commission: Summary of the 2025 workshop

Faustine Cantalloube, Jack Berat, Naïs Fargette +12

During its annual conference in 2025, the French Society of Astronomy \& Astrophysics (SF2A) hosted, for the fifth time, a special session dedicated to discussing the environmental…

astro-ph.EP2025★ 8 cited

Characterization of debris disks observed with SPHERE

N. Engler, J. Milli, N. Pawellek +33

This study aims to characterize debris disks observed with SPHERE across multiple programs, with the goal of identifying systematic trends in disk morphology, dust mass, and grain…