摘要
positive number, ω<sub>i</sub>（x, t）∈C<sup>2,1</sup>(Ω<sub>-τ</sub>) or C<sup>2,1</sup>(G<sup>-τ</sup>) are given by the functions Theorem 1. Let a<sub>ü</sub>【0, and the spectral radius ρ（M） of the matrix M=(m<sub>ij</sub>) is less that one, i.e. ρ（M ）【1, then the zero solution of the initial value problem （1） is asymptotically stable,
