Results 51 to 60 of about 1,240,285 (142)

On Sum Formulas for Generalized Tribonacci Sequence

open access: yes, 2020
In this paper, closed forms of the sum formulas for generalized Tribonacci numbers are presented. As special cases, we give summation formulas of Tribonacci, Tribonacci-Lucas, Padovan, Perrin, Narayana and some other third-order linear recurrance ...
Yüksel Soykan
core   +1 more source

A Hybrid Matrix–Based Encoding Scheme With Error Detection via Third‐Order Recurrences

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we propose a novel encoding–decoding algorithm based on third‐order linear recurrence sequences and their associated matrix representations. In particular, third‐order Jacobsthal and third‐order Jacobsthal–Lucas matrix sequences are combined with Padovan and Perrin matrix sequences to construct a hybrid block–based coding scheme.
Sukran Uygun, Smritijit Sen
wiley   +1 more source

Integer Semigroups Associated with Dumont‐Thomas Numeration Systems

open access: yesInternational Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
Given a primitive substitution, we define different binary operations on infinite subsets of the nonnegative integers. These binary operations are defined with the help of the Dumont‐Thomas numeration system; that is, a numeration system associated with the substitution. We give conditions for these semigroups to have an identity element.
Víctor F. Sirvent   +5 more
wiley   +1 more source

Identities involving the tribonacci numbers squared via tiling with combs [PDF]

open access: yes, 2022
The number of ways to tile an $n$-board (an $n\times1$ rectangular board) with $(\frac12,\frac12;1)$-, $(\frac12,\frac12;2)$-, and $(\frac12,\frac12;3)$-combs is $T_{n+2}^2$ where $T_n$ is the $n$th tribonacci number.
Allen, Michael A., Edwards, Kenneth
core  

Twisted rational zeros of linear recurrence sequences

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 3, March 2025.
Abstract We introduce the notion of a twisted rational zero of a nondegenerate linear recurrence sequence (LRS). We show that any nondegenerate LRS has only finitely many such twisted rational zeros. In the particular case of the Tribonacci sequence, we show that 1/3$1/3$ and −5/3$-5/3$ are the only twisted rational zeros that are not integral zeros.
Yuri Bilu   +4 more
wiley   +1 more source

k‐Step Sum and m‐Step Gap Fibonacci Sequence

open access: yesInternational Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
For two given integers k, m, we introduce the k‐step sumand m‐step gap Fibonacci sequence by presenting a recurrence formula that generates the nth term as the sum of k successive previous terms starting the sum at the mth previous term. Known sequences, like Fibonacci, tribonacci, tetranacci, and Padovan sequences, are derived for specific values of k,
Maria Adam   +4 more
wiley   +1 more source

On the Fibonacci Tiling and its Modern Ramifications

open access: yesIsrael Journal of Chemistry, Volume 64, Issue 10-11, November 2024.
Abstract In the last 30 years, the mathematical theory of aperiodic order has developed enormously. Many new tilings and properties have been discovered, few of which are covered or anticipated by the early papers and books. Here, we start from the well‐known Fibonacci chain to explain some of them, with pointers to various generalisations as well as ...
Michael Baake   +2 more
wiley   +1 more source

On Some New Sequence Spaces and Their Duals

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
In this study, we defined some new sequence spaces using regular Tribonacci matrix. We examined some properties of these spaces such as completeness, Schauder basis. We have identified α − , β−, and γ−duals of the newly created spaces.
Damla Barlak, Ömer Kişi
wiley   +1 more source

A Study on Sum Formulas for Generalized Tribonacci Numbers: Closed Forms of the Sum Formulas ∑_{k=0}ⁿkx^{k}W_{k}, ∑_{k=1}ⁿkx^{k}W_{-k} [PDF]

open access: yes, 2020
In this paper, closed forms of the sum formulas ∑_{k=0}ⁿkx^{k}W_{k}, ∑_{k=1}ⁿkx^{k}W_{-k} for generalized Tribonacci numbers are presented. As special cases, we give summation formulas of Tribonacci, Tribonacci-Lucas, Padovan, Perrin, Narayana and some ...
Soykan, Yüksel
core   +2 more sources

Some Boundedness, Convergence, and Oscillatory Results of Generalized Fibonacci‐Type and Fibonacci Ratio Recurrences

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2024, Issue 1, 2024.
Some boundedness and convergence properties of generalized Fibonacci’s‐type recurrences and their associated iterated recurrence ratios between pairs of consecutive terms are discussed under a wide number of initial conditions. Also, a more general, so‐called (k, q) Fibonacci’s recurrence and the associated Fibonacci’s ratio recurrences are ...
Manuel De la Sen, V. Ravichandran
wiley   +1 more source

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