Schur-convexity of the complete symmetric function

Schur-convexity of the complete symmetric function
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DOI:
10.7153/mia-09-52
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发表时间:
2006
影响因子:
1
通讯作者:
Kaizhong Guan
Kaizhong Guan
中科院分区:
数学4区
文献类型:
--
作者:
Kaizhong Guan

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本文研究了完全对称函数 cr(x) = Σ i1+...+in=r x i1 1 ...x in n 和函数 φr(x) = cr(x) cr−1(x) 的 Schur 凸性,其中 i1, ..., in 为非负整数,r 1。利用多数化理论建立了一些不等式,包括 Ky Fan 型不等式。它还涉及 Menon 提出的一个开放问题[1]。数学学科分类(2000):05E05、26E60、26D20。
This paper investigates Schur-convexity of the complete symmetric function cr(x) = ∑ i1+...+in=r x i1 1 ...x in n and the function φr(x) = cr(x) cr−1(x) , where i1, ..., in are non-negative integers and r 1. Some inequalities, including Ky Fan type inequality, are established by use of the theory of majorization. It is also concerned with an open problem proposed by Menon [1]. Mathematics subject classification (2000): 05E05, 26E60, 26D20.