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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 1 Unh在t=0.25的结果,其中τ=5h2
m×m G1 Order G2 Order
10×10 1.9233×10−2 --- 3.0654×10−4 ---
20×20 9.5820×10−3 1.0051 8.4333×10−5 1.8619
40×40 4.7867×10−3 1.0013 2.1579×10−5 1.9665