## Analysis and Estimation of Error Constants for {\large{\boldmath$P_0$}} and {\large{\boldmath$P_1$}} Interpolations over Triangular Finite Elements

J. Math. Sci. Univ. Tokyo
Vol. 17 (2010), No. 1, Page 27--78.

Liu, Xuefeng; Kikuchi, Fumio
Analysis and Estimation of Error Constants for {\large{\boldmath$P_0$}} and {\large{\boldmath$P_1$}} Interpolations over Triangular Finite Elements