a predator-prey model with Holling Ⅲ functional response and linear harvesting rate is researched
in which the prey is under density restriction.The paper discusses the properties of every equilibrium under different conditions.By drawing the path curve
analyzing the directions of the curve and
the global equilibrium is verified.At the same time
by constructing Dulac function
the condition of surrounding of equilibrium without close path curve is obtained.The boundness of solutions and the suf...