The following publications are possibly variants of this publication:
- On the convergence of an extrapolation cascadic multigrid method for elliptic problemsHongling Hu, Zhengyong Ren, Dongdong He, Kejia Pan. cma, 74(4):759-771, 2017. [doi]
- A new extrapolation cascadic multigrid method for three dimensional elliptic boundary value problemsKejia Pan, Dongdong He, Hongling Hu, Zhengyong Ren. jcphy, 344:499-515, 2017. [doi]