Results 21 to 30 of about 1,311,479 (362)

Development of interaction model for air traffic controllers and pilots using discrete mathematics methods

open access: yesНаучный вестник МГТУ ГА, 2020
The purpose of the article is to create a database of errors and to develop an algorithm for a situational decision-making model taking into account availability of potential errors of air traffic controllers and pilots.
A. I. Stepnova   +3 more
doaj   +1 more source

Binary relations in the space of binary relations. I. [PDF]

open access: yesApplied Mathematical Sciences, 2014
This article formulates principles of extension, saturation and convergence, and shows how to implement them. In socio-economic systems, there are "reference groups", with the indicators of which the results of the research and experimentation are compared.
openaire   +1 more source

On (Λ,Υ,ℜ)-Contractions and Applications to Nonlinear Matrix Equations

open access: yesMathematics, 2019
In this paper, we study the behavior of Λ , Υ , ℜ -contraction mappings under the effect of comparison functions and an arbitrary binary relation. We establish related common fixed point theorems.
Eskandar Ameer   +4 more
doaj   +1 more source

Relation-theoretic metrical coincidence theorems under weak C-contractions and K-contractions

open access: yesAIMS Mathematics, 2021
In this paper, we prove some coincidence point theorems for weak C-contractions and K-contractions involving a new auxiliary function in a metric space endowed with a locally f-transitive binary relation.
Faruk Sk, Asik Hossain , Qamrul Haq Khan
doaj   +1 more source

Partitioned Binary Relations

open access: yesMATHEMATICA SCANDINAVICA, 2013
We define the category of partitioned binary relations and show that it contains many classical diagram categories, including categories of binary relations, maps, injective maps, partitions, (oriented) Brauer diagrams and (oriented) Temperley-Lieb diagrams.
Volodymyr Mazorchuk, Paul Martin
openaire   +4 more sources

Relation Theoretic Common Fixed Point Results for Generalized Weak Nonlinear Contractions with an Application

open access: yesAxioms, 2019
In this paper, by introducing the concept of generalized Ćirić-type weak ( ϕ g , R ) -contraction, we prove some common fixed point results in partial metric spaces endowed with binary relation R .
Atiya Perveen   +2 more
doaj   +1 more source

A potential biomarker of cognitive impairment: The olfactory dysfunction and its genes expression

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1884-1897, December 2022., 2022
Abstract Objective Accumulation evidence has reported that olfactory impairment may be an essential clinical marker and predictor of mild cognitive impairment or Alzheimer's disease. Method Participants were enrolled in the population‐based, prospective study in Fuxin county, Liaoning province, China between 2019 and 2021.
Jiayi Song   +11 more
wiley   +1 more source

Common Fixed Point Results for Almost g-Geraghty Type Contraction Mappings in b2-Metric Spaces with an Application to Integral Equations

open access: yesAxioms, 2021
In this paper, we define almost Rg-Geraghty type contractions and utilize the same to establish some coincidence and common fixed point results in the setting of b2-metric spaces endowed with binary relations. As consequences of our newly proved results,
Samera M. Saleh   +3 more
doaj   +1 more source

Finding binary words with a given number of subsequences [PDF]

open access: yes\.Zak R., Finding binary words with a given number of subsequences, Theoretical Computer Science 919 (2022), pp. 75-79, 2022
We relate binary words with a given number of subsequences to continued fractions of rational numbers with a given denominator. We deduce that there are binary strings of length $O(\log n \log \log n)$ with exactly $n$ subsequences; this can be improved to $O(\log n)$ under assumption of Zaremba's conjecture.
arxiv   +1 more source

Ordinal notions of submodularity [PDF]

open access: yes, 2008
We consider several ordinal formulations of submodularity, defined for arbitrary binary relations on lattices. Two of these formulations are essentially due to Kreps [Kreps, D.M., 1979.
Chambers, Christopher P.   +1 more
core   +2 more sources

Home - About - Disclaimer - Privacy