Kejia Pan was supported by the National Natural Science Foundation of China(Nos.41474103 and 41204082);the National High Technology Research and Development Program of China(No.2014AA06A602);the Natural Science Foundation of Hunan Province of China(No.2015JJ3148);Dongdong He was supported by the Fundamental Research Funds for the Central Universities,the National Natural Science Foundation of China(No.11402174);the Program for Young Excellent Talents at Tongji University(No.2013KJ012);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry。
This paper proposes an extrapolation cascadic multigrid(EXCMG)method to solve elliptic problems in domains with reentrant corners.On a class ofλ-graded meshes,we derive some new extrapolation formulas to construct a ...
supported by National Natural Science Foundation of China(Grant Nos.11226332,41204082 and 11071067);the China Postdoctoral Science Foundation(Grant No.2011M501295);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20120162120036);the Construct Program of the Key Discipline in Hunan Province
For the Poisson equation with Robin boundary conditions,by using a few techniques such as orthogonal expansion(M-type),separation of the main part and the finite element projection,we prove for the first time that the...