主讲人：邓伟华 教授

工作单位：兰州大学 数学与统计学院

报告时间： 2021年5月13日 16:00

报告地点：数学与统计学院B304

报告题目 ： Functional Distribution of Multimodal Diffusion: Multiscale Modeling and Computation

 

内容简介：

 It has been widely recognized that anomalous diffusion is a very general phenomenon in the natural world, which is characterized by the nonlinear evolution of mean-squared displacement with respect to time, i.e., with . The common examples are for a subdiffusive continuous-time random walk with a divergent first moment of waiting time and for a Lévy flight with a divergent second moment of jump length. The common feature of the two typical anomalous diffusive processes is their single mode of the motions. However, a particle moving in a complex or even seemingly simple structures might present simultaneous modes, such as the tracing particle under the effect of a flow acting in the phase space of chaotic Hamiltonian systems.

Functional is a class of statistical observables, having wide applications in almost all disciplines. This talk will discuss the multiscale modeling and computation of functional distribution for diffusion with multiple modes.

 

报告人简介：邓伟华，教授，博士生导师，兰州大学数学与统计学院副院长、计算数学研究所所长。主要研究领域：1、反常与非遍历扩散、幂律衰减的波传播：模型、理论、 算法及应用；2、随机模型、理论、算法及应用。获教育部自然科学二等奖（反常与非遍历动力学多尺度模型及算法），教育部新世纪优秀人才，中国数学会计算数学分会第十届常务理事；获霍英东教育基金会高等院校青年教师奖，获飞天学者“青年学者”称号，以及中国计算数学会青年创新奖提名奖。任《Numerical Mathematics: Theory, Methods and Applications》和《Journal of Computational Mathematics and Data Science》Associate Editor，《Computer and Mathematics with Applications》和《高等学校计算数学学报》等刊物Editorial Board Member。