Results 91 to 100 of about 1,736,628 (188)

On Pell and Pell-Lucas numbers

open access: yes
In this work, we consider the linear recurrent sequences with constant coefficients of order 2, focusing on those defining Pell and Pell-Lucas numbers. In this context, we have examined the corresponding Binet formulas and the possibilities for a Pell or
Samia, Zikem   +2 more
core  

Powers in the Lucas sequence when the index is divisible by three [PDF]

open access: yes, 2011
In this paper the m-powers with m ≥ 2 included in the Lucas sequences when the index satisfies some conditions are ...
Rodrigo Hitos, Javier   +1 more
core  

Pell numbers

open access: yes, 2022
Niz Pellovih brojeva zadan je početnim uvjetima \(P_1=1, P_2=2\), te rekurzivnom relacijom \(P_n=2P_{n-1}+P_{n-2}, n \geq 3\). Uz definiciju Pellovih brojeva, u radu su definirani i Pell–Lucasovi brojevi koji su s njima usko povezani.
Marić, Helena
core  

A Note on Generalized k-Order F&L Hybrinomials

open access: yesAxioms
In this study, we introduce generalized k-order Fibonacci and Lucas (F&L) polynomials that allow the derivation of well-known polynomial and integer sequences such as the sequences of k-order Pell polynomials, k-order Jacobsthal polynomials and k-order ...
Süleyman Aydınyüz   +1 more
doaj   +1 more source

Randomized Trial of BCG Vaccine to Protect against Covid-19 in Health Care Workers. [PDF]

open access: yesN Engl J Med, 2023
Pittet LF   +44 more
europepmc   +1 more source

A Hybrid Matrix-Based Cryptographic Framework Using Multiple Linear Recurrence Sequences

open access: yesMathematics
In this study, we propose a matrix-based transformation framework constructed from special integer sequences, including Fibonacci, Lucas, Pell, and Jacobsthal numbers.
Sukran Uygun
doaj   +1 more source

Off-target effects of bacillus Calmette-Guérin vaccination on immune responses to SARS-CoV-2: implications for protection against severe COVID-19. [PDF]

open access: yesClin Transl Immunology, 2022
Messina NL   +10 more
europepmc   +1 more source

BCG vaccination to reduce the impact of COVID-19 in healthcare workers: Protocol for a randomised controlled trial (BRACE trial). [PDF]

open access: yesBMJ Open, 2021
Pittet LF   +37 more
europepmc   +1 more source

ON SOME INEQUALITIES AND HANKEL MATRICES INVOLVING PELL, PELL-LUCAS NUMBERS

open access: yes, 2013
In [4], the authors defined Toeplitz and Hankel matrices with Pell numbers and gave bounds for the spectral norms of them. In this study, we define Hankel matrices involving the Pell, Pell-Lucas and modified Pell sequences and investigate some properties
Halıcı, Serpil
core  

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