摘要
本文利用特征线的方法,得到关于拟线性双曲方程组Cauchy问题经典解的一致先验估计.这样的估计给出了系统经典解存在区间的下界.
This paper obtains a uniform a priori estimate of classical solution to the Cauchy problem for quasilinear hyperbolic system by using the method of characteristic, which gives a lower bound on life-span of the classical solution.
出处
《数学杂志》
CSCD
北大核心
2006年第3期237-242,共6页
Journal of Mathematics
基金
Supported by National Natural Science Funds of China(10131050).
关键词
拟线性双曲方程组
弱线性退化
存在区间
quasilinear hyperbolic system
weakly linearly degenerate
life-span
