应兰州大学数学与统计学院李万同教授邀请,电子科技大学王玉霞副教授将于2018年6月21日至6月25日访问兰州大学,期间将举办专题学术报告。
报告题目:Spatial Patterns of a Predator-Prey Model with Beddington-DeAngelis Functional Response
报告摘要:This talk is concerned with the spatial patterns of a predator-prey system with Beddington-DeAngelis functional response, in which the parameter $k$ measuring the mutual interference between predators can play an essential role. By using the bifurcation theory and
implicit function theorem we first consider the positive steady state solution bifurcating from the semitrivial steady state solution set of the system and prove that the positive steady state solution is constant. Then we show that nonconstant positive steady state solution may bifurcate from the constant positive steady state solution when $k$ is neither small nor large. Finally, we show that spatially nonhomogeneous periodic orbits may also bifurcate from the constant positive steady state solution as $k$ is not large.
时 间:6月21日下午 2:00
地 点:齐云楼911多媒体报告厅
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王玉霞简介:
王玉霞,2013年毕业于兰州大学并获得理学博士学位,现为电子科技大学数学科学学院副教授。攻读博士学位期间于2012/9-2013/9被国家留学基金委选派为“中法蔡元培交流合作项目”联合培养博士生前往法国波尔多大学数学系学习。主要从事微分方程与动力系统的研究。主持国家自然科学基金一项。现已在《Journal of Differential Equations》等国际学术期刊上发表论文十余篇。
甘肃省高校应用数学与复杂系统省级重点实验室
数学与统计学院
萃英学院
2018年6月20日