Results 11 to 20 of about 2,795,254 (283)

On Diophantine Equations Related to Order of Appearance in Fibonacci Sequence

open access: yesMathematics, 2019
Let F n be the nth Fibonacci number. Order of appearance z ( n ) of a natural number n is defined as smallest natural number k, such that n divides F k .
Pavel Trojovský
doaj   +3 more sources

On Periodic Points of the Order of Appearance in the Fibonacci Sequence

open access: yesMathematics, 2020
Let ( F n ) n ≥ 0 be the Fibonacci sequence. The order of appearance z ( n ) of an integer n ≥ 1 is defined by z ( n ) = min { k ≥ 1 : n ∣ F k } .
Eva Trojovská
doaj   +3 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

Influence of Denting Order on Quality and Appearance of Cotton Based Plain Woven Fabric

open access: yesJournal of Natural Fibers, 2022
With the surging demand for versatile products with eclectic fabric construction, weaving industries often qualify the standardized denting order with a view to utilize the reeds that are at their disposal.
Abdullah Sayam   +8 more
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

Retrocardiac Lucency in Neonates: Air Trapped in the Pulmonary Ligament

open access: yesJournal of the Belgian Society of Radiology, 2021
Air trapped in neonates’ pulmonary ligament is often the consequence of positive pressure ventilation and its typical radiographic appearance must be recognized in order to prevent the use of aggravating factors.
Antoine Collignon, Dana Dumitriu
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

The Koinōnia of Non-Being and Logos in the Sophist Account of Falsehood

open access: yesAreté, 2022
At Sophist 260e3-261a2, the Eleatic Stranger claims that in order to demonstrate that falsehood is, he and Theaetetus must first track down what speech (logos), opinion (doxa), and appearance (phantasia) are, and then observe the communion (koinōnia ...
Michael Wiitala
doaj   +1 more source

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