A parametric region of stability for parabolic systems with time delay is given. 並給出了一類時滯拋物系統穩定的參數區域。
The results of this paper improve some known ones and fully reflect the influences of impulsive and delay in oscillation. 所得結果改進了已有的結果,且充分反映了脈衝和時滯在振動中的影響作用。