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一类非线性抛物方程H1-Galerkin混合有限元方法的高精度分析
王俊俊,杨晓侠

Superconvergence Analysis of an H1-Galerkin Mixed Finite Element Method for Nonlinear Parabolic Equation
Junjun Wang,Xiaoxia Yang
表 4 Unh在t=1.0的结果,其中τ=5h2
m×m G1 Order G2 Order
10×10 4.0965×10−2 --- 2.4049×10−3 ---
20×20 2.0316×10−2 1.0118 5.9393×10−4 2.0176
40×40 1.0137×10−2 1.0029 1.4782×10−4 2.0064