导出了二维浅水流动的涡动方程与速度环量的随体导数表达式，以此为基础，分析了二维浅水流动中旋涡的动力学性质；

The vorticity equation was first established and the characteristics of vortex motion in two-dimensional shallow-water flows was analyzed, and then discrete vortex method (DVM) was briefly described.

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在随机微分方程的基础上，我们建立了金融市场模型，并且分析了模型的解与性质。

Using the stochastic theory to analyse the finance market model, we discuss the solution and properties of the model.

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