講座主題:Fractional PDE and other nonlocal models: numerical method and analysis
專家姓名:王宏
工作單位:南卡羅萊納大學
講座時間:2017年7月3日10:30
講座地點:數(shù)學院大會議室
主辦單位:煙臺大學數(shù)學與信息科學學院
內(nèi)容摘要:
we use one (two) Newton iterations on the fine grid in our methods. Firstly, we solve an original non-linear coupling problem. Then, solve a linear system on the fine grid and while in second method we make a correction on the coarse grid between one (two) Newton iterations on the fine grid. We obtain the error estimates of two-grid method, it is shown that coarse space can be extremely coarse and we achieve asymptotically optimal approximation. Finally, numerical experiment indicates that two-grid algorithm is very effective.
主講人介紹:
美國南卡羅萊納大學終身教授,,教育部長江學者,,山東省“泰山學者” 海外特聘教授、 博士生導師,。在數(shù)值分析與科學計算,、多孔介質(zhì)滲流力學計算方法等研究領域取得了許多創(chuàng)造性成果,。在國際權威學術雜志>,>,,> 等學術期刊發(fā)表論文100余篇,。先后承擔多項美國國家科學基金項目,中國國家自然科學基金項目以及??松?美孚石油公司等的研究資助,。