problem-solving theory

This paper solved the problem of how to analysis and control the programming error when machining complex surface, Based on the theory of spatial engagement, this paper present an algorithm of simulating complex surface, which is called velocity decomposed method.

本文从理论的角度探讨了复杂曲面数控加工中编程误差的分析方法问题，以空间点接触啮合的基本原理为理论基础，提出了一种数控加工复杂曲面的速度分解仿真算法。

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Ramsey theory constitutes the main research area of graph theory, and 3-coloring Ramsey theory is an important branch of Ramsey theory, the determination of 3-coloring Ramsey number is also an important research direction of Ramsey theory, and it is meanwhile a No-Polynomial Problem.

Ramsey理论是图论的重要研究内容之一，而3色Ramsey数理论是其中一个重要的理论分支，对于3色Ramsey数的确定也是一个重要的研究方向，属于NP困难问题。

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Based on the theory of engagement, an automatic modeling procedure is developed and the finite element model for contact problem of hypoid gearing is established.

应用轮齿啮合原理，开发了准双曲面齿轮网格自动建模程序，建立了轮齿动力接触有限元分析模型。

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In this paper, the nonlinear diffraction problem is studied with potential flow theory in frequency domain for three-dimensional floating body sailing in waves on deep water. This problem includes nonlinear diffraction problem and nonlinear wave making problem.

本文应用势流理论和频域方法研究了三维浮体在深水域波浪中航行时的非线性绕射问题，该问题包括非线性兴波问题和非线性绕射问题。

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Including general conflict problem," a vote down" problem and "robustness" problem, the conflict problems of multi-source information processing based on D-S theory are analyzed in the paper.

在多源信息融合处理中，针对基于D-S理论融合产生的冲突问题，进行了全面分析和总结，归纳为三个方面的问题：一般冲突问题、一票否决问题及鲁棒性问题；

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Keynesian theory of money and employment and the solution to China's unemployment problem

凯恩斯的货币与就业理论及解决中国失业问题的思路

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An algorithm based on the control theory of partial differential equations is proposed. It is also shown that the Null field method originally developed in the problem of acoustic scattering can be used to solve the corresponding adjoint problem of the optimal problem.

提出基于偏微分方程控制方法的一种算法，并证明原用于处理散射问题的Null-field method可用来求解优化问题的随伴问题。

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In this paper, the problem of the approximate function sequences of the axisymmetric large deflection of thin shallow revolution shells are structured by the theory of integral equations, and the existance, the uniform convergence and the uniqueness are also confirmed.

本文使用积分方程理论构造了旋传扁壳的轴对称大挠度问题的逼近函数序列，证明了其解的存在性、一致收敛性和唯一性。

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In 1911, M. Dehn gave three fundamental problems in combinatorial group theory: word problem, conjugacy problem and isomorphism problem.

1911年，M.Dehn提出了组合群论的三个基本问题，即：字问题、共轭问题、同构问题。

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Bousso and colleagues say there's a "measure problem" in the cosmological theory of eternal inflation.

布索和同事称在宇宙永远膨胀理论中存在一个“计量问题”。

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