Speaker: Professor David Gontier, National School of Bridges and Roads（France）

French Time: 9: 00--10: 00 AM, November 5th (Wednesday), 2025

Beijing Time:  16: 00--17: 00 PM, November 5th (Wednesday), 2025

Zoom Meeting ID: 854 25599739, Passcode:  202511

Abstract: In the first talk, I will talk about the Keller inequality, which concerns the optimization of the first eigenvalue of an operator depending on an external potential, under some constraints on this potential. I will provide a novel technique which allows to tackle the problem both for Schrödinger and Dirac operators, and which provides interesting numerical schemes for this optimization problem.

报告人简介：David Gontier现为法国国立路桥学校研究员。他的主要研究领域包括非线性分析、谱理论、变分法、偏微分方程、数学物理、量子力学等，在AJM, CMP, ARMA, PRL等国际一流杂志期刊上发表论文30余篇。