报告题目: |
Global Dynamics and Traveling Fronts of Reaction-diffusion System |
报告人: |
Prof. Qi Yuanwei |
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University of Central Florida , USA.
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报告时间: |
2010-11-18 16:00 |
报告地点: |
理科楼1304报告厅 |
主办单位: |
数学科学系 |
简介: |
In this talk, I shall report some of my recent works on global dynamics and traveling wave fronts in an isothermal chemical reaction $ A + 2B \rightarrow 3B$ involving two chemical species, a reactant $A$ and an auto-catalyst $B$ whose diffusion coefficients, $D_A$ and $D_B$, are unequal due to different molecular weights and/or sizes. We give detailed analysis of large time behaviour when initial values decay to zero at infinity. In addition, Explicit bounds $v_*$ and $v^*$ that depend on $D_B/D_A$ are derived such that there is a unique travelling wave of every speed $v\geqslant v^*$ and there does not exist any travelling wave of speed $v |
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