Results 51 to 60 of about 1,804,204 (295)

Incomplete Bivariate Fibonacci and Lucas 𝑝-Polynomials

open access: yesDiscrete Dynamics in Nature and Society, 2012
We define the incomplete bivariate Fibonacci and Lucas 𝑝-polynomials. In the case 𝑥=1, 𝑦=1, we obtain the incomplete Fibonacci and Lucas 𝑝-numbers. If 𝑥=2, 𝑦=1, we have the incomplete Pell and Pell-Lucas 𝑝-numbers.
Dursun Tasci   +2 more
doaj   +1 more source

A Study on Dual Hyperbolic Fibonacci and Lucas Numbers

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In this study, the dual-hyperbolic Fibonacci and dual-hyperbolic Lucas numbers are introduced. Then, the fundamental identities are proven for these numbers.
Cihan Arzu   +3 more
doaj   +1 more source

Bounds for a new subclass of bi-univalent functions subordinate to the Fibonacci numbers

open access: yes, 2020
In this investigation, by using a relation of subordination, we define a new subclass of analytic bi-univalent functions associated with the Fibonacci numbers. Moreover, we survey the bounds of the coefficients for functions in this class.
Ş. Altınkaya
semanticscholar   +1 more source

Corrigendum: On Summing Formulas for Generalized Fibonacci and Gaussian Generalized Fibonacci Numbers

open access: yes, 2020
In this paper, closed forms of the summation formulas for generalized Fibonacci and Gaussian generalized Fibonacci numbers are presented. Then, some previous results are recovered as particular cases of the present results.
Y. Soykan
semanticscholar   +1 more source

Fibonacci Numbers and Identities

open access: yesThe Fibonacci Quarterly, 2013
By investigating a recurrence relation about functions, we first give alternative proofs of various identities on Fibonacci numbers and Lucas numbers, and then, make certain well known identities visible via certain trivalent graph associated to the recurrence relation.
Lang, Cheng Lien, Lang, Mong Lung
openaire   +2 more sources

Perfect numbers and Fibonacci primes (I) [PDF]

open access: yesInternational Journal of Number Theory, 2014
In this paper, we introduce the concept of F-perfect number, which is a positive integer n such that ∑d|n,d<n d2 = 3n. We prove that all the F-perfect numbers are of the form n = F2k-1 F2k+1, where both F2k-1 and F2k+1 are Fibonacci primes. Moreover, we obtain other interesting results and raise a new conjecture on perfect numbers.
Tianxin Cai, Deyi Chen, Yong Zhang
openaire   +6 more sources

An Alternating Sum of Fibonacci and Lucas Numbers of Order k

open access: yesMathematics, 2020
During the last decade, many researchers have focused on proving identities that reveal the relation between Fibonacci and Lucas numbers. Very recently, one of these identities has been generalized to the case of Fibonacci and Lucas numbers of order k ...
Spiros D. Dafnis   +2 more
doaj   +1 more source

An inequality for Fibonacci numbers [PDF]

open access: yesMathematica Bohemica, 2022
We extend an inequality for Fibonacci numbers published by P. G. Popescu and J. L. Díaz-Barrero in 2006.
Horst Alzer, Florian Luca
doaj   +1 more source

On Mixed Concatenations of Fibonacci and Lucas Numbers Which are Fibonacci Numbers

open access: yes, 2022
Let $(F_n)_{n\geq 0}$ and $(L_n)_{n\geq 0}$ be the Fibonacci and Lucas sequences, respectively. In this paper we determine all Fibonacci numbers which are mixed concatenations of a Fibonacci and a Lucas numbers. By mixed concatenations of $ a $ and $ b $, we mean the both concatenations $\overline{ab}$ and $\overline{ba}$ together, where $ a $ and $ b $
Altassan, Alaa, Alan, Murat
openaire   +2 more sources

Fibonacci factoriangular numbers

open access: yesIndagationes Mathematicae, 2017
Abstract Let ( F m ) m ≥ 0 be the Fibonacci sequence given by F 0 = 0 , F 1 = 1 and F m + 2 = F m + 1 + F m , for all m ≥ 0 . In Castillo (2015), it is conjectured that 2 , 5 and 34 are the only Fibonacci numbers of the form n ! + n
Florian Luca   +2 more
openaire   +3 more sources

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