摘要
We obtain necessary as well as sufficient and necessary conditions for the existence of solutions in the future for the nonlinear differential system Our results generalize and improve some known results in the literature.
We obtain necessary as well as sufficient and necessary conditions for the existence of solutions in the future for the nonlinear differential system Our results generalize and improve some known results in the literature.
基金
The research was supported by NNSF of China and NSF of Hunan