1YANG YiDu 1 ,ZHANG ZhiMin 2 & LIN FuBiao 11 School of Mathematics and Computer Science,Guizhou Normal University,Guiyang 550001,China,2 Department of Mathematics,Wayne State University,Detroit,MI 48202,USA.Eigenvalue approximation from below using non-conforming finite elements[J].Science China Mathematics,2010,53(1):137-150. 被引量:14