本文讨论半线性抛物方程(a)u/(a)t=△u,x∈Ω,t>0,在第二类边值条件下(a)u/(a)n=up,x=(a)Ω,t>0解的有限时间爆破问题.从一维方程出发,主要考虑一维方程的数值解问题,以及分别利用Matlab的pdepe函数和有限差分进行数值模拟.
In this paper, the finite time blowup solutions of the semilinear parabolic equation (a)u/(a)t=△u,x∈Ω,t〉0, under the second boundary condition(a)u/(a)n=up,x=(a)Ω,t〉0 were mainly discussed. Using the methods of Matlab pdepe function and finite difference respectively, we study the numerical simulation of blowup solutions for one - dimensional heat equations.