Results 61 to 70 of about 991 (168)

The Romantic Discovery of Radiolaria in the Ocean

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 1, January/February 2026.
ABSTRACT Radiolaria are unicellular marine organisms (protists) that have been drifting in oceanic plankton for hundreds of millions of years. These mineral architects can build extraordinarily complex skeletons, which fascinated and puzzled naturalists observing water samples through rudimentary microscopes.
Johan Decelle
wiley   +1 more source

Pell Leonardo numbers and their matrix representations

open access: yesJournal of New Results in Science
In this study, we investigate Pell numbers and Leonardo numbers and describe a new third-order number sequence entitled Pell Leonardo numbers. We then construct some identities, including the Binet formula, generating function, exponential generating ...
Çağla Çelemoğlu
doaj   +1 more source

A generalização dos duais e sedenios de Leonardo

open access: yesCQD Revista Eletrônica Paulista de Matemática, 2021
Recentemente, pesquisadores tem apresentado o processo evolutivo da sequência de Leonardo. Com o intuito de dar continuidade a esse processo evolutivo, neste artigo, iremos apresentar os duais e os sedenios de Leonardo.
Milena Carolina dos Santos Mangueira   +3 more
doaj  

On dual and hyper-dual $k$-Leonardo numbers [PDF]

open access: yesMathematica Bohemica
We describe new classes of dual and hyper-dual numbers whose coefficients consist of the $k$-Leonardo numbers. We will call these numbers dual $k$-Leonardo numbers and hyper-dual $k$-Leonardo numbers, respectively.
Tülay Yağmur
doaj   +1 more source

Os números híbridos de k-Mersenne e k-Oresme

open access: yesCQD Revista Eletrônica Paulista de Matemática, 2021
Baseada nas sequências de k-Mersenne e k-Oresme, este artigo traz um estudo referente aos números híbridos de k-Mersenne e k-Oresme. Desse modo, tem-se uma investigação em torno da fórmula de Binet e das funções geradoras para esses números.
Milena Carolina dos Santos Mangueira   +3 more
doaj  

A generalization of the Binet-Minc formula for the evaluation of permanents

open access: yesLinear Algebra and its Applications, 1988
The author presents a formula which coincides with the Binet-Minc formula for the evaluation of the permanent of the matrix \((a_{ij})\) which is presented in the polynomial \(\prod^{n}_{i=1}(\sum^{m}_{j=1}a_{ij}x_ j)\) where this formula is considered for the sum of the coefficients of monomials of the form \(x^{j_ 1}_{\ell_ 1}...x^{j_ p}_{\ell_ p ...
openaire   +2 more sources

On One-Zero numbers: a new Horadam-type sequence

open access: yesIntermaths
Neste artigo, apresentamos uma nova sequência do tipo Horadam, que chamamos de sequência Um-Zero. Estudamos a equação de recorrência e mostramos a fórmula de Binet. O objetivo deste estudo é examinar as propriedades da sequência mencionada acima.
Eudes Antonio Costa   +2 more
doaj   +3 more sources

Binet – Type Formula For The Sequence of Tetranacci Numbers by Alternate Methods

open access: yesMathematical Journal of Interdisciplinary Sciences, 2019
The sequence {Tn} of Tetranacci numbers is defined by recurrence relation Tn= Tn-1 + Tn-2 + Tn-3 + Tn-4; n≥4 with initial condition T0=T1=T2=0 and T3=1. In this Paper, we obtain the explicit formulla-Binet-type formula for Tn by two different methods. We use the concept of Eigen decomposition as well as of generating functions to obtain the result.
null Gautam S. Hathiwala   +1 more
openaire   +2 more sources

Plenary Abstracts Session & Oral Presentations

open access: yes
HemaSphere, Volume 10, Issue S1, June 2026.
wiley   +1 more source

On Mersenne Finite Operators and Their Quaternion Counterparts

open access: yesCumhuriyet Science Journal
In this study, we introduce the Mersenne finite operator sequences, derived by applying a finite operator to Mersenne sequences, and investigate their fundamental properties. We establish the recurrence relations, derive a Binet-like formula, and present
Bahar Kuloǧlu
doaj   +1 more source

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