TY - JOUR T1 - A Finite Difference Scheme for Blow-Up Solutions of Nonlinear Wave Equations JO - Numerical Mathematics: Theory, Methods and Applications VL - 4 SP - 475 EP - 498 PY - 2010 DA - 2010/03 SN - 3 DO - http://doi.org/10.4208/nmtma.2010.m88051 UR - https://global-sci.org/intro/article_detail/nmtma/6010.html KW - Finite difference method, nonlinear wave equation, blow-up. AB -

We consider a finite difference scheme for a nonlinear wave equation, whose solutions may lose their smoothness in finite time, i.e., blow up in finite time. In order to numerically reproduce blow-up solutions, we propose a rule for a time-stepping, which is a variant of what was successfully used in the case of nonlinear parabolic equations. A  numerical blow-up time is defined and is proved to converge, under a certain hypothesis, to the real blow-up time as the grid size tends to zero.