学术报告

Asymptotic Spreading of Interacting Species with Multiple Fronts

阅读次数:75

题目:Asymptotic Spreading of Interacting Species with Multiple Fronts
报告人:King-Yeung Lam assistant professor (Ohio State University)

地点:致远楼101室

时间:2019年5月22日上午10:00-11:00
报告摘要:
We establish spreading properties of the Lotka-Volterra competition-diffusion system. When the initial data vanish on a right half-line, we show that there are two successive invasions. We derive the formulas of the exact spreading speeds and prove the convergence to homogeneous equilibrium states in between the invasion fronts. Our method is inspired by the geometric optics approach for Fisher-KPP equation due to the work of Freidlin, and that of Evans and Souganidis. Our main result settles an open question raised by Shigesada and Kawasaki in 1997, and shows that one of the species spreads to the right with a speed which is linearly, but non-locally, determined.

欢迎各位参加!

联系我们

    电话:86-21-65981384

    地址:上海市四平路1239号 致远楼

Copyright © 2018  同济大学数学科学学院 版权所有.