报告题目:Instability and bifurcation in models with advection, diffusion and delays

报告人:史峻平教授(College of William and Mary, USA)

时间：2012年11月6日（星期二）16:00-17:00

地点：理科楼数学系A304

摘要:In an evolution model, the equilibrium states are the ones which do not depend on time. A constant equilibrium is often stable if the perturbation is also constant one, hence it is dynamically stable with respect to an ODE. More realistic models often include the effect of spatial movement and/or time delays. In this talk, we show that instability of a constant equilibrium can be caused by advection, diffusion, cross-diffusion, or time delay. Moreover we show that Hopf bifurcations can occur in many cases so oscillatory states emerge.

报告人简介：http://jxshix.people.wm.edu/，史峻平教授是Applicable Analysis和Journal of Mathematical Analysis and Applications的编委。

联系人：邹文明