The Log-Behavior of the Partial Sum for the Tribonacci Numbers

Jump To References Section

Authors

  • ,CN

DOI:

https://doi.org/10.18311/jims/2017/6115

Keywords:

Fibonacci Sequence, Tribonacci Sequence, Log-Convexity, Log-concavity, Log-Balancedness, Monotonicity
Algebra

Abstract

Let {Tn}n ≥ 0 and {Tn[1]}n ≥ 0 denote the tribonacci sequence and the sequence for the partial sum of {Tn}n ≥ 0, respectively. In this paper, we mainly investigate the log-concavity of Tn[1]}n ≥ 1 and the log-balancedness of some sequences involving Tn[1] . In addition, we discuss the monotonicity of some sequences related to Tn[1] .

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Published

2017-01-02

How to Cite

Zhao, F.-Z. (2017). The Log-Behavior of the Partial Sum for the Tribonacci Numbers. The Journal of the Indian Mathematical Society, 84(1-2), 143–149. https://doi.org/10.18311/jims/2017/6115
Received 2016-06-10
Accepted 2016-08-22
Published 2017-01-02

 

References

N. N. Cao and F. Z. Zhao, Some properties of hyper bonacci and hyperlucas numbers, Journal of Integer Sequences, 13 (2010), Article 10.8.8.

W. Y. C. Chen, J. J. F. Guo and L. X. W. Wang, In nitely logarithmically monotonic combinatorial sequences, Advances in Applied Mathematics, 52 (2014), 99{120.

H. Davenport, G. Polya, On the product of two power series, Canadian Journal of Mathematics, 1 (1949), 1{5.

A. Dil and I. Mezo, A symmetric algorithm for hyperharmonic and Fibonacci numbers, Applied Mathematics and Computation, 206 (2008), 942{951.

T. Doslic, Log-balanced combinatorial sequences, International Journal of Mathematics and Mathematical Sciences, 4 (2005), 507{522.

R. A. Dunlap, The golden ratio and Fibonacci numbers, revised ed., World Scienti c, Singapore, 1997, p.61.

B. Hacene and B. Amine, Combinatorial expressions involving Fibonacci, hyper bonacci, and incomplete Fibonacci numbers, Journal of Integer Sequences, 17 (2014), Article 14.4.3.

Q. H. Hou, Z. W. Sun and H. M. Wen, On monotonicity of some combinatorial sequences, Publicationes Mathematicae Debrecen, 85 (2014), 285{295.

J. Li, Z. L. Jiang and F. L. Lu, Determinants, norms, and the spread of circulant matrices with tribonacci and generalized Lucas numbers, Abstract and Applied Analysis 2014, Article ID 381829.

R. Liu and F. Z. Zhao, On the sums of reciprocal hyper bonacci numbers and hyperlucas numbers, Journal of Integer Sequences, 15 (2012), Article 12.4.5.

F. Luca and P. Stanica, On some conjectures on the monotonicity of some arithmetical sequences, Journal of Combinatorics and Number Theory, 4 (2012), 115{123.

Z. W. Sun, Conjectures involving arithmetical sequences, Proceedings of the 6th China-Japan Seminar, S. Kanemitsu, H. Li and J. Liu eds., World Scienti c, Singapore, 2013, 244{258.

Y. Wang and Y-N Yeh, Log-concavity and LC-positivity, Journal of Combinatorial Theory. Series A, 114 (2007), 195{210.

Y. Wang and B. X. Zhu, Proofs of some conjectures on monotonicity of number-theoretic and combinatorial sequences, Science China Mathematics, 57 (2014), 2429{2435.

F. Z. Zhao, The log-behavior of the Catalan-Larcombe-French sequence, International Journal of Number Theory, 10 (2014), 177{182.

L. N. Zheng, R. Liu and F. Z. Zhao, On the log-concavity of hyper bonacci Numbers and hyperlucas Numbers, Journal of Integer Sequences, 17 (2014), Article 14.1.4.