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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 3 Unh在t=0.75的结果,其中τ=5h2
m×m G1 Order G2 Order
10×10 3.1907×10−2 --- 1.8301×10−3 ---
20×20 1.5823×10−2 1.0119 4.5553×10−4 2.0063
40×40 7.8950×10−3 1.0030 1.1367×10−4 2.0026