本文研究一类高阶非线性双曲型方程utt-uxx+μuxxxx-αuxxtt+βuxxxxtt=f(ux)x的Cauchy问题,证明问题解的存在性与唯一性,并给出解在有限时刻爆破的充分条件.
In this paper,the existence and uniqueness of solution for the Cauchy problem of the following nonlinear hyperbolic equation of higher order utt-uxx+μuxxxx-αuxxtt+βuxxxxtt=f(ux)x is obtained ,and the sufficient conditions of blow-up of the solution for the problem in finite time are given.