TY - JOUR T1 - Improved Error Estimates for Mixed Finite Element for Nonlinear Hyperbolic Equations: The Continuous-Time Case AU - Chen , Yan-Ping AU - Huang , Yuan-Qing JO - Journal of Computational Mathematics VL - 4 SP - 385 EP - 392 PY - 2001 DA - 2001/08 SN - 19 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/8991.html KW - Nonlinear hyperbolic equations, Mixed finite element methods, Error estimates, Superconvergence. AB -

Improved $L_2$-error estimates are computed for mixed finite element methods for second order nonlinear hyperbolic equations. Results are given for the continuous-time case. The convergence of the values for both the scalar function and the flux is demonstrated. The technique used here covers the lowest-order Raviart-Thomas spaces, as well as the higher-order spaces. A second paper will present the analysis of a fully discrete scheme.