Results 31 to 40 of about 6,090,423 (307)

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

An Efficient Algorithm for Decomposition of Partially Ordered Sets

open access: yesJournal of Mathematics, 2023
Efficient time complexities for partial ordered sets or posets are well-researched field. Hopcroft and Karp introduced an algorithm that solves the minimal chain decomposition in O (n2.5) time. Felsner et al.
Elsayed Badr   +3 more
doaj   +1 more source

The lattice of antichain cutsets of a partially ordered set [PDF]

open access: yes, 1991
Every finite lattice is isomorphic to the lattice of antichain cutsets of a finite partially ordered set whose chains have at most three ...
Behrendt, Gerhard
core   +1 more source

Neutrosophic Lattices [PDF]

open access: yesNeutrosophic Sets and Systems, 2014
In this paper authors for the first time define a new notion called neutrosophic lattices. We define few properties related with them. Three types of neutrosophic lattices are defined and the special properties about these new class of lattices are ...
Vasantha Kandasamy   +1 more
doaj  

A partially ordered set and q-Krawtchouk polynomials [PDF]

open access: yes, 1981
A family of q-Krawtchouk polynomials are the eigenvalues of the association schemes of bilinear, alternating, symmetric, and hermitian forms over a finite field.
Stanton, Dennis
core   +1 more source

A Novel Definition of L-Fuzzy Lattice Based on Fuzzy Set

open access: yesThe Scientific World Journal, 2013
The concept of L-fuzzy lattice is presented by means of an L-fuzzy partially ordered set. An L-fuzzy partially ordered set A is an L-fuzzy lattice if and only if one of A[a], A[a], and A(a) is a lattice.
Jun-Fang Zhang
doaj   +1 more source

Fixed Point Theorems in Rectangular b-Metric Space Endowed with a Partial Order

open access: yesAxioms, 2023
The purpose of this paper is to present some fixed-point results for self-generalized contractions in ordered rectangular b-metric spaces. We also provide some examples that illustrate the non-triviality and richness of this area of research.
Andrei Horvat-Marc   +3 more
doaj   +1 more source

Inflations of geometric grid classes of permutations [PDF]

open access: yes, 2015
All three authors were partially supported by EPSRC via the grant EP/J006440/1.Geometric grid classes and the substitution decomposition have both been shown to be fundamental in the understanding of the structure of permutation classes.
Ruskuc, Nik, Albert, M.D., Vatter, V.
core   +1 more source

On chains and posets within the power set of a continuum

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
Transfinite induction is employed to construct a copy of an arbitrary partially-ordered set of cardinality at most c within the power set (quasi-ordered by sub-chain embeddability) of the real line.
P. T. Matthews, T. B. M. McMaster
doaj   +1 more source

Note on the Hahn-Banach Theorem in a Partially Ordered Vector Space

open access: yesJournal of Applied Mathematics, 2013
Using a fixed point theorem in a partially ordered set, we give a new proof of the Hahn-Banach theorem in the case where the range space is a partially ordered vector space.
Toshiharu Kawasaki   +2 more
doaj   +1 more source

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