Results 21 to 30 of about 6,955,994 (297)

Finding a Maximum-Weight Convex Set in a Chordal Graph

open access: yesJournal of Graph Algorithms and Applications, 2019
We consider a natural combinatorial optimization problem on chordal graphs, the class of graphs with no induced cycle of length four or more. A subset of vertices of a chordal graph is (monophonically) convex if it contains the vertices of all chordless
Jean Cardinal   +2 more
doaj   +1 more source

Some applications of fixed point results for monotone multivalued and integral type contractive mappings

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2023
The motivation of the present paper is to introduce and establish some new fixed point results for monotone multivalued functions in partially ordered complete D ∗ $D^{*}$ -metric spaces, where the partial ordered set ( X , ≤ ) $(X,\leq )$ is obtained ...
Nassar Aiman Majid   +3 more
doaj   +1 more source

Some Fixed Point Theorems in Generalized Metric Spaces Endowed with Vector-valued Metrics and Application in Linear and Nonlinear Matrix Equations [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
Let $mathcal{X}$ be a partially ordered set and $d$ be a generalized metric on $mathcal{X}$. We obtain some results in coupled and coupled coincidence of $g$-monotone functions on $mathcal{X}$, where $g$ is a function from $mathcal{X}$ into itself ...
Hasan Hosseinzadeh
doaj   +1 more source

Partially homogeneous partially ordered sets

open access: yesJournal of Combinatorial Theory, Series A, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dan Saracino, Carol Wood
openaire   +2 more sources

Best proximity point results with their consequences and applications

open access: yesJournal of Inequalities and Applications, 2022
In the commenced work, we establish some best proximity point results for multivalued generalized contractions on partially ordered complete metric spaces along with the tactic of altering distance function.
Satyendra Kumar Jain   +3 more
doaj   +1 more source

Coincidence of Fixed Points with Mixed Monotone Property

open access: yesمجلة بغداد للعلوم, 2023
The purpose of this paper is to introduce and prove some coupled coincidence fixed point theorems for self mappings satisfying -contractive condition with rational expressions on complete partially ordered metric spaces involving altering distance ...
Amal M. Hashim, Ali A. Kazem
doaj   +1 more source

Completion of partially ordered sets [PDF]

open access: yes, 2006
The paper considers a generalization of the standard completion of a partially ordered set through the collection of all its lower ...
Solovyov, Sergey
core   +1 more source

The symmetric monoidal closed category of cpo $M$-sets [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
In this paper, we show that the category of directed complete posets with bottom elements (cpos) endowed with an action of a monoid $M$ on them forms a monoidal category. It is also proved that this category is symmetric closed.
Halimeh Moghbeli
doaj   +1 more source

Existence of local fractional integral equation via a measure of non-compactness with monotone property on Banach spaces

open access: yesAdvances in Difference Equations, 2020
In this paper, we discuss fixed point theorems for a new χ-set contraction condition in partially ordered Banach spaces, whose positive cone K $\mathbb{K}$ is normal, and then proceed to prove some coupled fixed point theorems in partially ordered Banach
Hemant Kumar Nashine   +3 more
doaj   +1 more source

Soft constraints with partially ordered preferences [PDF]

open access: yes, 2020
This paper constructs a logic of soft constraints where the set of degrees of preference forms a partially ordered set. When the partially ordered set is a distributive lattice, this reduces to the idempotent semiring-based CSP approach, and the lattice ...
Wilson, Nic
core   +1 more source

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