主讲人:王明新教授
单位:哈尔滨工业大学
时间:2017年10月18日(周三)上午10:00
地点:长安校区数学学院学术报告厅
报告摘要:In
this talk we consider a free boundary problem for the Leslie-Gower
prey-predator model with double free boundaries in one space dimension. This
system models the expanding of an invasive or new predator species in which the
free boundaries represent expanding fronts of the predator species. We first
prove the existence, uniqueness and regularity of global solution. Then provide
a spreading-vanishing dichotomy, namely the predator species either
successfully spreads to infinity as $t\to\infty$ at both fronts and survives in
the new environment, or it spreads within a bounded area and dies out in the
long run while the prey species stabilizes at a positive equilibrium state. The
criteria for spreading and vanishing are also obtained. Because the term $v/u$
(which appears in the second equation)
may be unbounded when $u$ nears zero, it will bring some difficulties in
the study.
主讲人简介:哈尔滨工业大学理学研究中心特聘教授和二级教授,博士生导师。河南省优秀专家称号及国务院政府特殊津贴获得者。曾任江苏省数学会副理事长,东南大学应用数学硕士和博士点学科负责人、二级教授和特聘教授, 江苏省重点学科“应用数学”首席科学家。发表论文 230 余篇,其中被 SCI检索的有220 余篇。科学出版社出版专著5本,高等教育出版社出版专著1本,参与编写了科学出版社出版的“数学大辞典”,清华大学出版社出版教材4本。主持完成国家自然科学基金项目8项,在研一项;主持完成省部级项目9项。获得教育部科技进步三等奖2次,江苏省科技进步二等奖1次,高等学校科学研究优秀成果奖自然科学二等奖1次,江苏省首届青年科学家奖提名奖,河南省青年科技奖,江苏省优秀研究生指导教师,华英文化教育基金奖。
欢迎各位师生的参加!