We investigate optimal policy for a predator - prey system with age - dependent.

研究一类具有年龄结构的捕食 - 食饵种群动力系统的最优收获策略.

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On the wider conditions, the optimal policy is also affected by capital discount, debt and rate.

在放宽的约束条件下, 其最优股利行为还受到资本折旧 、 负债、利率的影响.

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Sensitivity of the parameters with respect to optimal policy are analyzed via numerical examples.

并进一步探讨参数对称与参数非封称之变化封于最佳维修策略影响之敏感度.

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