On June 20, 2016, renowned international specialist of computational mathematics, Professor Shu Qiwang of Brown University visited Beijing Institute of Technology (BIT) at the invitation of the State Key Laboratory of Explosion Science and Technology and the invitation of School of Mathematic and Statistics. He gave a brilliant academic report titled “IMEX Time Marching for Discontinuous Galerkin Methods”. The report meeting was hosted by Vice Professor Shi Jing.
Professor Shu Qiwang used to hold the post of director of the Mathematics Center of American Brown University, member of the first session of SIAM. At present, he holds the post of the editor-in-chief of the renowned international periodical Journal of Scientific Computing, subeditor of Methods and Applications of Analysis and Geometry, Imaging and Computing, editorial board member of over ten international periodicals including Mathematics of Computation and Journal of Computational Physics. He was rewarded the research reward of NASA. He gave a 45-minute lecture on the International Congress of Mathematic of 2014. He has come up with a series of calculation formats creatively in recent years, which are universally recognized by international peers. These formats receive extensive use in computational fluid mechanics, mechanics of explosion and astronomy. During the report, he designed explicit-implicit discretization schemes aiming at space local discontinuous Galerkin method of convection diffusion equation, which proved the unconditional stability of the format in theory and overcame the severe limit fully discrete format has for time step. The approach has significant practical value on multi-scale numerical simulation of explosion. The profound knowledge, humorous speaking and tight demonstration of professor Shu impressed the teachers and the students, the report ended in enthusiastic applause.
Professor Wang Cheng and Professor Wu Haijun of the State Key Laboratory of Explosion Science and Technology, Excutive Vice-President Tian Yufu, Professor Sun Bing, and Professor Liu Genqian of the School of Mathematics and Statistics and some teachers and students attended the report.
