The full transformation method is used in element-free Galerkin method for solving the elliptic boundary value problems.

采用完全变换法施加本质边界条件，给出求解椭圆型边值问题的无网格伽辽金方法。

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This paper discusses a class of free boundary value problem of ordinary differential equations occurred in problems of classical mixed and impulse optimum control in research fund management problems.

该文讨论由经典-脉冲混合控制最优策略中提出的一类常微分方程的自由边值问题，给出了该问题解的存在性定理。

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