【摘要】 讨论了n种群时滞的中立型Lotka Volterra生态模型。利用新的重合度理论中连续性定理 ,得到了该模型正周期解存在性的充分条件更多还原

【Abstract】 n species neutral Lotka\|Volterra model with time delay is discussed. By using a new continuation theorem of coincidence degree theory, a sufficient condition is obtained for the existence of a positive periodic solution of this system.更多还原