等周问题,isoperimetric problem
1)isoperimetric problem等周问题
1.Variational method of the isoperimetric problem of functional of more than one functions;含多个函数的泛函的等周问题的变分方法
2.In this paper we prove that the Grushin ball is not the solution to the isoperimetric problem and then show that the Brunn-Minkowski inequality does not hold in the Grushin plane.首先证明了Grushin球不是Grushin平面上等周问题的解,然后得到了Brunn-Minkowski不等式在Grushin平面上是不成立的。
3.Using convex theory and extreme value of function,get a result about the perimeter bisection chord of a triangle on isoperimetric problem:Any bisection chord L of a triangle dissects the triangle into two parts,denote M L the one with larger area,S(M L) the area of M L,then there exists a chord L 0,which satisfies:S(M L 0)=max{S(M L):L is a perimeter bisection chord}.利用凸集理论和函数极值 ,讨论了三角形周长平分弦关于等周问题的结果 :三角形的任一周长平分弦 L将其划分为 2部分 ,记 ML 为面积较大者 ,S( ML)为 ML 的面积 ,则必存在一弦 L0 ,使得 S( ML0 ) =max{ S( ML)∶ L为周长平分弦 } 。
英文短句/例句

1.He also proposed and discussed the problem of isoperimetric figures.他还提出并讨论过等周问题
2.Problem of the Equvalency of the Periodic Solutions of Van Der Pol Equation;关于Van der pol方程周期解的等价性问题
3.Periodic Orbits for Non-smooth Dynamical Systems and Integral Inequalities Systems;非光滑动力系统周期轨及积分不等式组问题
4.The key point of this method is that the error of initial value of baseline vector must be very small, for example, less than 0.33 cycles.该方法不涉及“周跳的探测及修复”和“整周模糊度的确定”等问题。
5.hit a snag, problem, etc遇到障碍、 问题等
6.(6) The question of the class composition of the co-operative membership.And so on.(6)社员成分问题,等等。
7.programs on current social problems, plays, movies and so on.当前社会问题,电影等等。
8.China has held talks with the ROK, the Philippines and other neighboring countries on the development and protection of fishery resources in the surrounding sea areas.中国还与韩国、菲律宾等其他周边国家进行渔业谈判,讨论周边海域渔业资源开发和保护问题。
9.Business Cycles: The Problem and Its Setting经济周期:问题及其背景
10.Periodic Solutions and Periodic Boundary Value Problems of Impulsive Differential Equations;脉冲微分方程周期解和周期边值问题
11.But it was dogged by huge cost overruns, delays, and 90-hour work weeks for the 800-member crew.但是它一直受到巨大的超支、时间的延误、800人的剧组每周要工作90小时等问题的困扰。
12.On the formation time of Yao ti and some issues related to it;谈《周易》爻题的形成时间及相关诸问题
13.Zhou Fan asks about superstitions.周凡询问了有关迷信的问题。
14.resolve(a problem,etc)by discussio通过商谈解决(问题等).
15.find a solution to(a problem/one's problems,etc)解决(某个[自己的]问题等)
16.consider(a problem,etc)fully全面地考虑(问题等).
17.pertinent comments, points, questions, etc中肯的意见、 观点、 问题等
18.decide(an issue,etc)by asking for votes将(问题等)付诸表决.
相关短句/例句

inverse isoperimetric problem逆等周问题
3)abstract isopermetric problem抽象等周问题
1.In this paper,we investigate the structure of locally fine points and its applications to the abstract isopermetric problem.在本文中,我们主要研究了局部精细点的结构,并讨论了其对抽象等周问题的应用。
4)generalized isoperimetric problem广义等周问题
5)classical isoperimetric problem经典等周问题
6)periodic problem周期问题
延伸阅读

等周问题等周问题isoperimetric problem 等周问题【询户如面c脚曲抽11;那。叶p服e,”叨c幽3a八明a] 经典变分学中基本问题之一等周问题是求泛函 书2 ,。(,)一了f。(x,,,,‘)dx xI在形式为戈2 J‘(夕)一丁,,(x,,,,,)己:一。‘; x. f,:R%R”xR”~R,i=l,…,m的约束和一定的边界条件下的极小值. 当引进满足微分方程 全‘=f‘(x,y,y‘),i=l,…,m和边界条件 :*(x、)=0,z‘(xZ)=c‘,i”l,…,m的新变数z‘时,等周问题化成La乎翎理,问题(U名-mn罗problem).等周问题中最优性的必要条件与Lagran罗函数(La即an罗丘 mc石。n) L(X,夕,,‘,“。,一“。)一,氛“‘f‘(x,y,y‘)有关的变分学中最简单问题有同样的形式. “等周问题”的名称可追溯到下面的经典问题:在平面上所有具有给定周长的曲线中,求围成最大面积的一条曲线,【补注】如上所述,原始等周问题是求有最大面积和给定周长的几何图形的问题,即这问题是求函数y,(x),yZ(x),使得 X2 丁,.,;过二 笼.最小,且满足 笼: 丁丫(夕;),+(,;):、:一,, 戈.这里l是一给定常数.