数学物理学报(英文版) ›› 1994, Vol. 14 ›› Issue (1): 90-94.
周爱辉, 林群
Zhou Aihui, Lin Qun
摘要: In this paper an open problem for an optimal finite element error of a scalar hyperbolic equation is solved by using an elaborate analysis of the error expansion of linear finite elements. Addtionally, a superconvergenca approximation scheme for gradient is provided.