研究了非线性随机种群收获动力学模型的数值解问题,给出了外界环境对系统产生影响的条件下随机收获动力学系统.通过控制收敛定理,It公式及Gronwall不等式,讨论了随机种群系统数值解收敛问题,得到了数值解逼近解析解的充分条件,所得结论是确定性种群系统的扩展.
Numerical solution to a nonlinear stochastic harvesting population system is studied. When the external environment affects the system,the sufficient condition for the numerical solution is obtained through dominated convergence theorem,It fomula and Gronwall lemma. The result extends that of certaint population system.