Nonautonomous Single Population Models with Periodoc Coefficients and Their Optimal Harvesting Policies
具周期系数的单种群模型及其最优捕获策略

In this paper, using a new method, the authors discuss the optimal harvesting problems of nonautonomous single population biological resource. The authors choose the maximum annual-sustainable yield as the management objective and investigate the optimal harvesting policies for a class of nonautonomous single population models. The results include almost all nonautonomous single populatiom models researched in literature.