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利用詹森不等式推广几个数学问题
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作者 孙风军 《兵团教育学院学报》 2009年第3期40-42,共3页
詹森(Jensen)不等式是解决不等式问题的一个重要方法,也是发现数学问题的重要手段。运用詹森不等式的关键是通过观察所给代数式的函数特征,构造一个凹或凸的函数,以利解题。
关键词 不等式 数学问题 解题方法:()函数
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关系暗含难定断 “隔离”明言易呈现 被引量:1
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作者 郑良 《中学教研(数学版)》 2017年第8期23-26,共4页
高三专题复习教学中会出现很多解法上的困惑.文章研究剖析了-道试题的解法,明晰问题的逻辑基础,给 出相关问题的解答与点评,并从问题背景、思维历程、逻辑关系等多角度进行揭示,同时针对教学现状,结合教学实践给出 教学思考.
关键词 高三复习教学 “隔离”函数 ()函数 传递性 思维过程 自然解法
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CONVEXIFICATION AND CONCAVIFICATION METHODS FOR SOME GLOBAL OPTIMIZATION PROBLEMS 被引量:3
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作者 WUZhiyou ZHANGLiansheng +1 位作者 BAIFusheng YANGXinmin 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2004年第3期421-436,共16页
In this paper, firstly, we propose several convexification and concavification transformations to convert a strictly monotone function into a convex or concave function, then we propose several convexification and con... In this paper, firstly, we propose several convexification and concavification transformations to convert a strictly monotone function into a convex or concave function, then we propose several convexification and concavification transformations to convert a non-convex and non-concave objective function into a convex or concave function in the programming problems with convex or concave constraint functions, and propose several convexification and concavification transformations to convert a non-monotone objective function into a convex or concave function in some programming problems with strictly monotone constraint functions. Finally, we prove that the original programming problem can be converted into an equivalent concave minimization problem, or reverse convex programming problem or canonical D.C. programming problem. Then the global optimal solution of the original problem can be obtained by solving the converted concave minimization problem, or reverse convex programming problem or canonical D.C. programming problem using the existing algorithms about them. 展开更多
关键词 Global optimal solution concave minimization reverse convex programmingproblem D.C. programming problem CONVEXIFICATION CONCAVIFICATION
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