题目：On Chemotaxis Models with Indirect Production of Signals

报告人：陶有山 教授（上海交通大学）

地点：致远楼101室

时间：2025年7月14日（星期一）10:00–11:00

Abstract: This talk mainly addresses two chemotaxis models with indirect signal production. One model describes the spread and aggregative behavior of the Mountain Pine Beetle (MPB) in a forest habitat, in which the second population does not undergo any diffusion; whereas the other model illustrates the effects induced by the phenotypical heterogeneity in microbial populations in which both bacteria populations diffuse. In sharp contrast to classical Keller-Segel-type systems reflecting immediate signal secretion by the cells themselves, the indirect mechanism of signal production significantly prevent the occurrence of blow-up in finite time or upshift the critical blow-up line which switches depending on the spatial dimensions. This talk is based on some joint works with Michael Winkler (Paderborn).

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