Results 41 to 50 of about 48,003 (223)

Improving Maximum Tolerated Dose Selection in Model-Assisted Designs for Phase I Trials Through Bayesian Dose-Response Model. [PDF]

open access: yesPharm Stat
ABSTRACT Model‐assisted designs have garnered significant attention in recent years due to their high accuracy in identifying the maximum tolerated dose (MTD) and their operational simplicity. To identify the MTD, they employ estimated dose limiting toxicity (DLT) probabilities via isotonic regression with pool‐adjacent violators algorithm (PAVA) after
Wakayama R, Momozaki T, Ando S.
europepmc   +2 more sources

k-generalized Fibonacci numbers which are concatenations of two repdigits

open access: yesGlasnik Matematicki - Serija III, 2021
We show that the k-generalized Fibonacci numbers that are concatenations of two repdigits have at most four digits.
Adel Alahmadi   +4 more
semanticscholar   +1 more source

Some new identities of a type of generalized numbers involving four parameters

open access: yesAIMS Mathematics, 2022
This article deals with a Horadam type of generalized numbers involving four parameters. These numbers generalize several celebrated numbers in the literature such as the generalized Fibonacci, generalized Lucas, Fibonacci, Lucas, Pell, Pell-Lucas ...
Waleed Mohamed Abd-Elhameed   +2 more
doaj   +1 more source

Notes on generalized and extended Leonardo numbers [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics, 2023
This paper both extends and generalizes recently published properties which have been developed by many authors for elements of the Leonardo sequence in the context of second-order recursive sequences.
Anthony G. Shannon   +2 more
doaj   +1 more source

The sequence of trifurcating Fibonacci numbers

open access: yesRatio Mathematica, 2021
One of the interesting generalizations of Fibonacci sequence is a k-Fibonacci sequence, which is further generalized into the ‘Bifurcating Fibonacci sequence’.
Parimalkumar A. Patel   +1 more
doaj   +1 more source

Generalized transformations on ratios of Fibonacci and Lucas numbers

open access: greenJournal of Numerical Analysis and Approximation Theory, 1995
Not available.
Ioan Lazăr, Adrian Mureşan
doaj   +2 more sources

On the Natural Density of Sets Related to Generalized Fibonacci Numbers of Order r

open access: yesAxioms, 2021
For r≥2 and a≥1 integers, let (tn(r,a))n≥1 be the sequence of the (r,a)-generalized Fibonacci numbers which is defined by the recurrence tn(r,a)=tn−1(r,a)+⋯+tn−r(r,a) for n>r, with initial values ti(r,a)=1, for all i∈[1,r−1] and tr(r,a)=a. In this paper,
P. Trojovský
semanticscholar   +1 more source

Solutions of equations x2−(p2q2±3p)y2=±kt

open access: yesExamples and Counterexamples, 2022
In the present paper, we have solved the equation x2−(p2q2±3p)y2=kt,x2−(p2q2±5p)y2=ktand expressed its positive integer solutions in terms of generalized Fibonacci, generalized Lucas and generalized Pell, generalized Pell–Lucas sequences.
Roji Bala, Vinod Mishra
doaj   +1 more source

Generalized Fibonacci Numbers with Indices in Arithmetic Progression and Sum of Their Squares: The Sum Formula ∑nk=0 xkW2mk+j

open access: yesJournal of Advances in Mathematics and Computer Science, 2021
In this paper, closed forms of the sum formulas ∑n k=0 xkWmk 2 +j for generalized Fibonacci numbers are presented. As special cases, we give sum formulas of Fibonacci, Lucas, Pell, Pell-Lucas, Jacobsthal, Jacobsthal-Lucas numbers.
Y. Soykan
semanticscholar   +1 more source

Some Properties of Generalized Fibonacci Numbers: Identities, Recurrence Properties and Closed Forms of the Sum Formulas ∑nk=0 xkWmk+j

open access: yesArchives of Current Research International, 2021
In this paper, closed forms of the summation formulas ∑nk=0 xkWmk+j for generalized Fibonacci numbers are presented. As special cases, we give summation formulas of Fibonacci, Lucas, Pell, Pell-Lucas, Jacobsthal, Jacobsthal-Lucas numbers.
Y. Soykan
semanticscholar   +1 more source

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