The permanent problem for four-species Lotka-Volterra models is investigated, some sufficient and necessary conditions for a model to be permanent are obtained by using linear state feedback.

• 本文研究了四种群Lotka-Volterra模型的永久持续生存问题，给出了通过线性状态反馈使四种群Lotka-Volterra模型永久持续生存的一些充分和必要条件.