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(xué)
講座時(shí)間:2017年7月3日10:30
講座地點(diǎn):數(shù)學(xué)院大會(huì)議室
主辦單位:煙臺(tái)大學(xué)數(shù)學(xué)與信息科學(xué)學(xué)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(xué)終身教授,教育部長江學(xué)者,山東省“泰山學(xué)者” 海外特聘教授、 博士生導(dǎo)師。在數(shù)值分析與科學(xué)計(jì)算、多孔介質(zhì)滲流力學(xué)計(jì)算方法等研究領(lǐng)域取得了許多創(chuàng)造性成果。在國際權(quán)威學(xué)術(shù)雜志>,>,> 等學(xué)術(shù)期刊發(fā)表論文100余篇。先后承擔(dān)多項(xiàng)美國國家科學(xué)基金項(xiàng)目,中國國家自然科學(xué)基金項(xiàng)目以及埃克森-美孚石油公司等的研究資助。