报告题目：The best root-exponential convergence of lightning plu…

报 告 人：向淑晃

时 间：2025年4月27日（周日）上午10:30-11:30

地 点：国交2号楼315会议室

简 介：

报告题目：Numerical Study of Nonlinear Schrödinger Equations wit…

报 告 人：王立联

时 间：2025年4月27日（周日）上午9:30-10:30

地 点：国交2号楼315会议室

简 介：

报告题目：Stability of Periodic Waves Bifurcating from a Front-B…

报 告 人：于晴

时 间：2025年4月25日（周五）下午 16:00-17:00

地 点：国交2号楼201

简 介：In this talk, we focus on the stability of periodic waves bifurcating from a front-back wave loop. First, in general systems, we give the expressions of spectra with small modulus for linearized operator $L$ about these periodic waves by using Lyapunov-Schmidt reduction method and Lin-Sandstede method. Then, applying above spectral results to FitzHugh-Nagumo system, we obtain that $L^2(\mathbb{R})$-spectrum of $L$, consisting of essential spectrum, lies in the left-hand complex plane and is tangent to the imaginary axis at the origin. Last, we analyse the nonlinear stability of periodic waves against localized perturbations for FitzHugh-Nagumo system.