任意正初始能量状态下半线性波动方程解的有限时间爆破

Finite Time Blow-Up for the Damped Semilinear Wave Equations with Arbitrary Positive Initial Energy

研究了具有强阻尼的半线性波动方程的初边值问题.在一定的初值条件下,给出高初始能量状态下解在有限时间爆破的充分条件.另外在任意正初始能量状态下给出解在能量空间中整体存在的充分条件.

This paper investigates the initial-boundary value problem of the semilinear wave equation with strong damped terms. We provide the sufficient conditions of finite time blow-up of solutions with high initial energy under some reasonable restrictions on the initial data. In the case of the arbitrary positive initial energy, we also present the sufficient conditions of the existence of global solutions in the energy space.