Results 11 to 20 of about 2,080 (215)

Dynamic Organization of Cells in Colonic Epithelium is Encoded by Five Biological Rules. [PDF]

open access: yesBiol Cell
This study reports that a set of five biological rules encodes how colonic epithelium dynamically maintains its precise organization of cells despite continuous tissue renewal. These rules might even provide a means to understand the mechanisms that underlie organization of other tissue types, and how tissue disorganization leads to birth defects and ...
Boman BM   +8 more
europepmc   +2 more sources

On Fibonacci functions with Fibonacci numbers [PDF]

open access: yesAdvances in Difference Equations, 2012
Abstract In this paper we consider Fibonacci functions on the real numbers R, i.e., functions f : R → R such that for all x ∈ R ,
Hee Sik Kim   +2 more
openaire   +3 more sources

On the Inverse of a Fibonacci Number Modulo a Fibonacci Number Being a Fibonacci Number

open access: yesMediterranean Journal of Mathematics, 2023
Let $(F_n)_{n \geq 1}$ be the sequence of Fibonacci numbers. For all integers $a$ and $b \geq 1$ with $\gcd(a, b) = 1$, let $[a^{-1} \!\bmod b]$ be the multiplicative inverse of $a$ modulo $b$, which we pick in the usual set of representatives $\{0, 1, \dots, b-1\}$. Put also $[a^{-1} \!\bmod b] := \infty$ when $\gcd(a, b) > 1$.
openaire   +2 more sources

Some Properties of Fibonacci Numbers, Generalized Fibonacci Numbers and Generalized Fibonacci Polynomial Sequences [PDF]

open access: yesKyungpook mathematical journal, 2017
In this paper we study the Fibonacci numbers and derive some interesting properties and recurrence relations. We prove some charecterizations for $F_p$, where $p$ is a prime of a certain type. We also define period of a Fibonacci sequence modulo an integer, $m$ and derive certain interesting properties related to them.
Alexandre Laugier, Manjil P. Saikia
openaire   +4 more sources

On Generalized Fibonacci Numbers

open access: yesCommunications in Advanced Mathematical Sciences, 2020
Fibonacci numbers and their polynomials have been generalized mainly by two ways: by maintaining the recurrence relation and varying the initial conditions, and by varying the recurrence relation and maintaining the initial conditions. In this paper, we introduce and derive various properties of $r$-sum Fibonacci numbers.
Fidel ODUOL, Isaac Owino OKOTH
openaire   +4 more sources

Shifted Fibonacci Numbers

open access: yesAfyon Kocatepe University Journal of Sciences and Engineering, 2023
Shifted Fibonacci numbers have been examined in the literature in terms of the greatest common divisor, but appropriate definitions and fundamental equations have not been worked on. In this article, we have obtained the Binet formula, which is a fundamental equation used to obtain the necessary element of the shifted Fibonacci number sequence ...
openaire   +5 more sources

Tunable multichannel Fibonacci one-dimensional terahertz photonic crystal filter

open access: yesScientific Reports, 2023
This paper proposes a multichannel terahertz optical filter based on a one-dimensional photonic crystal with a third-order Fibonacci structure, including a bulk Dirac semimetal.
V. Sepahvandi, B. Rezaei, A. H. Aly
doaj   +1 more source

The Fibonacci numbers of certain subgraphs of circulant graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2015
The Fibonacci number ℱ(G) of a graph G with vertex set V(G), is the total number of independent vertex sets S⊂V(G); recall that a set S⊂V(G) is said to be independent whenever for every two different vertices u,v∈S there is no edge between them.
Loiret Alejandría Dosal-Trujillo   +1 more
doaj   +1 more source

On the sum of a prime and a Fibonacci number [PDF]

open access: greenInternational Journal of Number Theory, 2010
We show that the set of the numbers that are the sum of a prime and a Fibonacci number has positive lower asymptotic density.
K. S. Enoch Lee
openalex   +4 more sources

A weighted extension of Fibonacci numbers

open access: yesJournal of Difference Equations and Applications, 2023
14 pages, comments ...
Bhatnagar, Gaurav   +2 more
openaire   +3 more sources

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