Electronic Journal of Differential Equations,
Vol. 2009(2009), No. 157, pp. 1-12.

Title: Dynamics of a non-autonomous three-dimensional population system
       
Authors: Ta Hong Quang (Xuan Hoa Teacher Training Univ., Vietnam)
         Ta Viet Ton   (Osaka Univ., Japan)
	 Nguyen Thi Hoai Linh (Vietnam Publishing House, Vietnam)

Abstract:
 In this paper, we study a non-autonomous Lotka-Volterra model
 with two predators and one prey. The explorations involve the
 persistence, extinction and global asymptotic stability of a
 positive solution.
 
Submitted August 28, 2009. Published December 01, 2009.
Math Subject Classifications: 34C27, 34D05.
Key Words: Predator-prey model; survival; extinction; persistence;
           asymptotic stability; Liapunov function.