题目:Trajectory attractor and trajectory statistical solution for the 3D globally modified Navier-Stokes equations
时间:2019年4月20日15:30
地点:立志楼A422
主办:数学与计算科学学院
报告人简介:
赵才地,博士,温州大学数理与电子信息工程学院教授,硕士生导师,温州大学应用数学研究所所长,温州大学学术委员会委员,温州大学瓯江特聘教授(新湖学者)。长期从事非线性发展方程和无穷维动力系统方面的研究。已主持完成3项国家级自然科学基金项目、1项中国博士后科学基金项目和2项浙江省自然科学基金项目。以第一且通讯作者在《J.Differential Equations》、《Nonlinearity》、《中国科学》等国内外主流数学物理杂志上发表学术研究论文60余篇,其中被SCI收录50余篇;以第二完成人获浙江省自然科学三等奖1项。2012年入选浙江省“新世纪151人才工程”第二层次和温州市“新世纪551人才”第一层次。2016年被评为韩国全南大学应用数学方向兼职博导。
报告摘要:
In this talk, we first prove the existence and regularity of the trajectory attractor for a three-dimensional system of globally modified Navier-Stokes equations. Then we use the natural translation semigroup and trajectory attractor to construct the trajectory statistical solutions in the trajectory space. In our construction the trajectory statisticalsolution is an invariant Borel probability measure, which is supported by the trajectory attractor and is invariant under the action of the translation semigroup. As a byproduct of the regularity of the trajectory attractor, we obtain the asymptotic regularity of the trajectory statistical solution in the sense that it is supported by a set in the trajectory space in which all weak solutions are in fact strong solutions.