Inequalities between Arithmetic-Geometric, Gini, and Toader Means

Inequalities between Arithmetic-Geometric, Gini, and Toader Means
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DOI:
10.1155/2012/830585
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发表时间:
2012-01-01
影响因子:
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通讯作者:
Wang, Miao-Kun
Wang, Miao-Kun
中科院分区:
其他
文献类型:
--
作者:
Chu, Yu-Ming;Wang, Miao-Kun

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我们找到了最大值p(1),p(2)和最小值q(1),q(2)使得双重不等式Sp(1)(a,b)<M(a,b)<Sq(1)(a,b)<Sp(2)(a,b)<T(a,b)<Sq(2)(a,b);Sq(2)(a,b)对所有a,b&gT;0都成立,并且给出了完全椭圆积分的一些新的界。这里M(a,b),T(a,b)和S-p(a,b)分别是两个正数a和b的算术几何平均值、Toader平均值和第p个基尼平均值。
We find the greatest values p(1), p(2) and least values q(1), q(2) such that the double inequalities Sp(1)(a, b) < M(a, b) < Sq(1)(a, b) and Sp(2)(a, B) < T(a, b) < Sq(2)(a, b) hold for all a, b > 0 with a not equal b and present some new bounds for the complete elliptic integrals. Here M(a, b), T(a, b), and S-p(a, b) are the arithmetic-geometric, Toader, and pth Gini means of two positive numbers a and b, respectively.