Chen, ChuanmiaoHu, HonglingXie, ZiqingZhang, Shangyou2016-06-162016-06-162010-12https://hdl.handle.net/11299/1810301 online resource (PDF, 18 pages, includes illustrations)enElliptic equationFinite elementExtrapolationUniform gridSuperconvergence(MSC2000)65M60(MSC2000)65N30A jumping multigrid method via finite element extrapolationPreprint