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Total positivity of Riordan arrays
被引:42
|作者:
Chen, Xi
[1
]
Liang, Huyile
[1
]
Wang, Yi
[1
]
机构:
[1] Dalian Univ Technol, Sch Math Sci, Dalian 116024, Peoples R China
基金:
中国国家自然科学基金;
高等学校博士学科点专项科研基金;
关键词:
CATALAN NUMBERS;
COMBINATORICS;
D O I:
10.1016/j.ejc.2014.11.009
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
We present sufficient conditions for the total positivity of Riordan arrays. As applications we show that many well-known combinatorial triangles are totally positive and many famous combinatorial numbers are log-convex in a unified approach. (C) 2014 Elsevier Ltd. All rights reserved.
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页码:68 / 74
页数:7
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