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【Coll. 0913】Prof. 方健: A delayed reaction-diffusion equation with free boundary
时间:2018-09-10  浏览:253次

报告人:方健教授, 哈尔滨工业大学


时间和地点:  9月13日11:30-12:30, 中国人民大学环境楼316。


题目:A delayed reaction-diffusion equation with free boundary


摘要:Incorporating Stefan type free boundary into time-delayed reaction-diffusion equations yields a compatible condition that guarantees  the well-posedness of the initial value problem. With the KPP type nonlinearity we then establish a vanishing-spreading dichotomy result. Further, when the spreading happens, we show that the spreading speed and spreading profile are nonlinearly determined by a delay-induced nonlocal semi-wave problem.