自然科学版
陕西师范大学学报(自然科学版)
数学与计算机科学
Smarandache.Pascal派生逆序列的几个恒等式
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赵院娥1, 刘卓2
(1 延安大学 数学与计算机学院, 陕西 延安 716000;2 西北大学 数学系, 陕西 西安 710127)
赵院娥,女,副教授,主要从事数论与代数的教学与研究.E-mail: ydzye@163.com.
摘要:
引入了Smarandache-Pascal派生逆序列的定义,并利用初等及组合方法讨论了Smarandache-Pascal派生逆序列的性质,得到几个有趣的恒等式,从而证明了如果任何基序列{Tn}是一个二阶线性递推序列,那么它所产生的Smarandache-Pascal派生逆序列{bn}也是一个二阶线性递推数列,且当基数列{Tdn+1}是一个二阶线性递推数列{Tn}的子列时,则它的派生逆序列{bn}的线性表示式更为简洁.
关键词:
Smarandache-Pascal派生序列; 逆序列; 二阶线性递推数列; 组合方法; 恒等式
收稿日期:
2012-06-13
中图分类号:
O156.4
文献标识码:
A
文章编号:
1672-4291(2013)01-0020-03
基金项目:
国家自然科学基金资助项目(11071194); 陕西省教育厅科学研究计划项目(11JK0489).
Doi:
Some identities on the Smarandache-Pascal inverse derived sequence
ZHAO Yuan-e1, LIU Zhuo2
(1 College of Mathematics and Computer Science, Yan′an University, Yan′an 716000, Shaanxi, China;2 Department of Mathematics, Northwest University,Xi′an 710127, Shaanxi, China)
Abstract:
Smarandache-Pascal inverse-derived sequence is introduced, the properties of the Smarandache-Pascal inverse-derived sequence are studied, some interesting identities are obtained by using the elementary and combinational method, and it is proved that if the base sequence {Tn} is a second-order linear recurrence sequence, then its Smarandache-Pascal inverse-derived subsequence is a second-order linear recurrence sequence.Moreover,if the base sequence {Tdn+1} is a subset of the second-order linear recurrence sequence {Tn}, then its Smarandache-Pascal inverse-derived sequence {bn} has a simple linear recurrence expression.
KeyWords:
Smarandache-Pascal derived sequence; inverse sequence; second-order linear recurrence sequence; combinational method; identity