查询词典 three-body problem

Check content covered the aspect of almost full knowledge of series, if tried check of the 11st problem 2004 of series connect with knowledge of sue for peace, the 2 content check that try the 2nd big problem to combine analytic geometry, inequality of recurrence series, monotonicity and;2005 of knowledge of sue for peace year try the 7th problem to combine polynomial coefficient check knowledge of geometric series sue for peace, the 13rd problem is background check with recurrence series the preliminary knowledge; of the property that series concerns and number theory

考查内容涵盖了数列的几乎全部知识点，如2004年一试第11题考查了数列的通项和求和知识，二试第2大题结合解析几何、不等式的内容考查了递推数列的通项、单调性及求和知识；2005年一试第7题结合多项式系数考查了等比数列求和知识，第13题以递推数列为背景考查了数列有关的性质和数论的初步知识

Based on Pontryagin maximum principle, the lunar soft landing problem is transformed into a two-point boundary value problem in mathematics. In consideration of the bound condition and transversality condition, the resulted two-point boundary value problem is converted into a parameter optimization problem aiming at the initial values of conjugate variables and the terminal time, then it is solved by the nonlinear programming.

首先，从庞德里亚金极大值原理出发，将有限推力作用下月球软着陆问题转化为数学上的两点边值问题；在考虑边界条件及横截条件的前提下，将该两点边值问题转化为针对共轭变量初值和末时刻的优化问题；然后应用非线性规划方法求解所形成的参数优化问题。

In this paper, we propose a general model of a class of Lagrangian dual problem for the general nonlinear programming problem with respect to some Lagrange-type functions. We obtain that the zero duality gap exists between this class of Lagrangian dual problem and the primal problem.

针对一般的非线性规划问题，利用某些Lagrange型函数给出了一类Lagrangian对偶问题的一般模型，并证明它与原问题之间存在零对偶间隙。

Based on this, convert the matrix equations problem for row symmetric matrices into ordinary matrix equations problem, the scale of converted matrix equations problem is half of that for the original problem.

在此基础上，将行对称矩阵方程组问题转化为一般的矩阵方程组问题，转化后的一般矩阵方程组问题的规模是原行对称矩阵方程组问题的一半。

Although the disperse model is beautiful and sententiously, the problem is NP-hard problem, when the number of aminophenol is very huge, the style of the difficulty of settle the problem is exponential, solving the problem is impossible.

离散模型固然很简洁优美，但是蛋白质结构的预测问题是NP-HARD问题，当蛋白质一维氨基酸序列的链长n很大的时候，计算时间随着问题规模的增加呈指数方式增长，求解将变得非常困难。

This problem is firstly decomposed into two problems including capacity allocation problem and routing problem and then these two problems are integrated.The project establishes a series of mathematical models to analyze the problem by the means of stochastic programming and dynamic programming.

对于不确定环境下全球集装箱的收益管理问题，首先分解为集装箱空箱和重箱的舱位分配问题以及空船与满船的路径问题，然后再集成研究，运用随机规划和动态规划的方法建立一系列的数学模型进行分析。

Under the circumstances that some prior knowledge about the possible fault can be obtained,the dynamic behavior of the fault is proposed and used to solve fault estimation problem.While,if there is no extra knowledge available about the possible fault other than the condition of l_2 bounded,the residual generation is formulated into a problem of observer-based H_∞filtering problem in the sense of stochastic,and the linear matrix inequality approach to solve this problem is proposed.

对于能够了解部分故障先验知识的情况，提出描述故障结构特性的动态模型，解决H_∞故障估计问题；而当故障信息完全未知情况下，将基于观测器的残差产生器设计归结为随机意义下的H_∞滤波问题，提出了该问题求解的线性矩阵不等式方法。

Our results improve the former results. For periodic Jacobi matrix, some new spectral properties of periodic Jacobi matrix are given by studying the relationship of the eigenvalues of periodic Jacobi matrix and its n—1 principal submatrix. Applying these spectral properties, we present a necessary and sufficient condition for the solvability of an inverse problem of periodic Jacobi matrices and discuss the number and the relationship of its solutions. Furthermore, we propose a new algorithm to construct its solution and compare it with the former algorithms. As this inverse problem of periodic Jacobi matrix usually has multiple solutions as many other eigenvalue inverse problems, we study the uniqueness of this problem. And a necessary and sufficient condition is given to ensure its uniqueness, under which an algorithm is presented and the stability analysis is also given. Finally, we put forward a new inverse problem for periodic Jacobi matrix which has not been solved.

对周期Jacobi矩阵特征值反问题，通过研究周期Jacobi矩阵与其n-1阶主子阵特征值的关系，给出了周期Jacobi矩阵的一些新的谱性质；利用这些谱性质，研究了一类周期Jacobi矩阵特征值反问题，用新的方法推导出了该类特征值反问题有解的充分必要条件，并讨论了解的个数以及解与解之间的关系；此外，提出了一种新的构造周期Jacobi矩阵反问题解的数值算法，并与前人的算法做了一定比较；由于周期Jacobi矩阵特征值反问题和其他很多特征值反问题一样往往存在多个解，本论文给出了周期Jacobi矩阵反问题解唯一的充要条件，并发现周期Jacobi矩阵特征值反问题的解唯一当且仅当构造的矩阵满足一定的条件；在解唯一的情况下，给出了构造唯一解的数值算法，并做了相应的稳定性分析；最后，提出了一类新的有待于解决的周期Jacobi矩阵特征值反问题。

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Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。