On an inequality of Diananda.

On an inequality of Diananda.
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DOI:
10.1155/s0161171203210279
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发表时间:
2003
影响因子:
1.2
通讯作者:
Peng Gao
Peng Gao
中科院分区:
--
文献类型:
--
作者:
Peng Gao

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,其中Pn,0(x)表示Pn,r(x)在r → 0 +时的极限,并且其中qi > 0,1 ≤ i ≤ n,是正真实的数,n=1 qi = 1,x =(x1,x2,.,x n)。设q = min qi,且n ≥ 2,0 ≤ x1 <x2 < ··· <xn.我们定义An(x)= Pn,1(x),Gn(x)= Pn,0(x),和Hn(x)= Pn,−1(x),我们将把Pn,r写成Pn,r(x),An写成An(x),当没有混淆的风险时,其他方法也是如此。对于相互不同的数r、s和t以及任何真实的数α和β,我们定义
,where Pn,0(x) denotes the limit of Pn,r (x) as r → 0 + and where qi > 0, 1 ≤ i ≤ n, are positive real numbers with n=1 qi = 1 and x = (x1 ,x 2 ,...,x n). In this note, we let q = min qi and always assume n ≥ 2 and 0 ≤ x1 <x 2 < ··· <x n. We define An(x) = Pn,1(x), Gn(x) = Pn,0(x), and Hn(x) = Pn,−1(x) and we will write Pn,r for Pn,r (x), An for An(x), and similarly for other means when there is no risk of confusion. For mutually distinct numbers r , s, and t and any real number α and β ,w e define