在半离散和全离散格式下讨论了一类非线性色散耗散波动方程的Crouzeix-Raviart型非协调线性三角形有限元逼近,得到了H1模意义下两种离散格式的最优误差估计.
A Crouzeix-Raviart type nonconforming linear triangular finite element approximation is discussed for a class nonlinear dispersion-dissipative wave equations under semi-discrete and fully-discrete schemes,the optimal order error estimates in broken H1 norm were derived for two discrete schemes.