Results 11 to 20 of about 665,321 (256)

On Some Properties of the Limit Points of (z(n)/n)n

open access: yesMathematics, 2021
Let (Fn)n≥0 be the sequence of Fibonacci numbers. The order of appearance of an integer n≥1 is defined as z(n):=min{k≥1:n∣Fk}. Let Z′ be the set of all limit points of {z(n)/n:n≥1}.
Eva Trojovská, Kandasamy Venkatachalam
doaj   +1 more source

On Two Problems Related to Divisibility Properties of z(n)

open access: yesMathematics, 2021
The order of appearance (in the Fibonacci sequence) function z:Z≥1→Z≥1 is an arithmetic function defined for a positive integer n as z(n)=min{k≥1:Fk≡0(modn)}. A topic of great interest is to study the Diophantine properties of this function. In 1992, Sun
Pavel Trojovský
doaj   +1 more source

The Proof of a Conjecture on the Density of Sets Related to Divisibility Properties of z(n)

open access: yesMathematics, 2021
Let (Fn)n be the sequence of Fibonacci numbers. The order of appearance (in the Fibonacci sequence) of a positive integer n is defined as z(n)=min{k≥1:n∣Fk}.
Eva Trojovská, Venkatachalam Kandasamy
doaj   +1 more source

Coupling Relationships Between Rural Land Consolidation Projects and Rural Beautification Construction at Jingbian County of Shaanxi Province

open access: yesShuitu baochi tongbao, 2022
[Objective] The coupling relationships and change mechanisms between rural land consolidation projects and rural beautification construction were studied in order to provide a theoretical basis for implementing plans for land consolidation projects in ...
Wu Defeng
doaj   +1 more source

Gibbs Sampling for Mixtures in Order of Appearance: The Ordered Allocation Sampler

open access: yesJournal of Computational and Graphical Statistics, 2023
28 pages, 2 figures, 2 ...
Pierpaolo De Blasi, María F. Gil-Leyva
openaire   +2 more sources

Segmentation of Infant Brain Using Nonnegative Matrix Factorization

open access: yesApplied Sciences, 2022
This study develops an atlas-based automated framework for segmenting infants’ brains from magnetic resonance imaging (MRI). For the accurate segmentation of different structures of an infant’s brain at the isointense age (6–12 months), our framework ...
Norah Saleh Alghamdi   +9 more
doaj   +1 more source

On the Growth of Some Functions Related to z(n)

open access: yesMathematics, 2020
The order of appearance z : Z > 0 → Z > 0 is an arithmetic function related to the Fibonacci sequence ( F n ) n . This function is defined as the smallest positive integer solution of the congruence F k ≡ 0 ( mod n )
Pavel Trojovský
doaj   +1 more source

Some problems related to the growth of z ( n ) $z(n)$

open access: yesAdvances in Difference Equations, 2020
Let ( F n ) n ≥ 0 $(F_{n})_{n\geq 0}$ be the Fibonacci sequence. The order of appearance z ( n ) $z(n)$ of a positive integer n is defined as z ( n ) : = min { k ≥ 1 : n ∣ F k } $z(n):= \min \{k\geq 1: n\mid F_{k}\}$ .
Pavel Trojovský
doaj   +1 more source

The Visual N1 Is Sensitive to Deviations from Natural Texture Appearance. [PDF]

open access: yesPLoS ONE, 2015
Disruptions of natural texture appearance are known to negatively impact performance in texture discrimination tasks, for example, such that contrast-negated textures, synthetic textures, and textures depicting abstract art are processed less efficiently
Benjamin Balas, Catherine Conlin
doaj   +1 more source

On the Diophantine Equation z(n) = (2 − 1/k)n Involving the Order of Appearance in the Fibonacci Sequence

open access: yesMathematics, 2020
Let ( F n ) n ≥ 0 be the sequence of the Fibonacci numbers. The order (or rank) of appearance z ( n ) of a positive integer n is defined as the smallest positive integer m such that n divides F m .
Eva Trojovská
doaj   +1 more source

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