Sharp Stolarsky mean bounds for the complete elliptic integral of the second kind
Sharp Stolarsky mean bounds for the complete elliptic integral of the second kind
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第二类完全椭圆积分的 Sharp Stolarsky 平均界
DOI:
10.22436/jnsa.010.03.06
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发表时间:
2017-01-01
影响因子:
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通讯作者:
Zhang, Xiao-Hui
中科院分区:
文献类型:
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作者:
Yang, Zhen-Hang;Chu, Yu-Ming;Zhang, Xiao-Hui
In the article, we prove that the double inequality 25/16 < epsilon(r)/S-5/2,S-2 (1, r ') < pi/2, holds for all r is an element of(0, 1) with the best possible constants 25/16 and pi/2, where r ' = (1 - r(2))(1/2),epsilon(r) = integral(pi/2)(0) root 1 - r(2) sin(2) (t) dt, is the complete elliptic integral of the second kind and S-p,(q) (a, b) - [q(a(p) - b(p))/(p(a(q) - b(q)))](1/(p - q)), is the Stolarsky mean of a and b. (C) 2017 All rights reserved.