Results 51 to 60 of about 3,836,386 (143)

Fixed point theorems for contractions in semicomplete semimetric spaces [PDF]

open access: yesCarpathian Journal of Mathematics, 2018
We introduce the concept of semicompleteness on semimetric space, which is weaker than completeness. We prove fixed point theorems for contractions in semicomplete semimetric spaces. Also, we generalize JachymskiMatkowski-Swia¸ tkowski’s fixed point theorem in semimetric spaces.
openaire   +1 more source

Relation‐Theoretic Contractions Employing a New Pair of Shifting Distance Functions with Applications to Second‐Order Ordinary Differential Equations

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
The objective of the paper is to present some fixed point results verifying a relational contraction utilizing certain shifting distance functions and via a generalized class of transitive relations. Our outcomes sharpen, extend, modify, and enrich many well‐known results. To demonstrate the utility of our results, several examples are provided.
Faizan Ahmad Khan   +5 more
wiley   +1 more source

Bases Giving Distances. A New Semimetric and its Use for Nonparemetric Functional Data Analysis

open access: yes, 2011
The BAGIDIS semimetric is a highly adaptivewavelet-based semimetric. It is particularly suited for dealing with curves presenting horizontally- and verticallyvarying sharp local patterns.
Delsol, Laurent   +5 more
core   +1 more source

On representations of permutations groups as isometry groups of n-semimetric spaces

open access: yes, 2015
We prove that every finite permutation group can be represented as the isometry group of some n-semimetric space. We show that if a finite permutation group can be realized as the isometry group of some n-semimetric space then this permutation group ...
Oliynyk, B., Gerdiy, O.
core   +1 more source

Iris: Deep Space Small Satellite Radio [PDF]

open access: yes, 2017
With nanosatellites being used for deep space missions, the need for a unique communications architecture to relay valuable mission data back to NASA’s Deep Space Network (DSN) is ...
Space Dynamics Laboratory
core   +1 more source

Optimizing over Semimetric Polytopes

open access: yes, 2004
A new combinatorial structure, the semicut in a graph, is defined as a generalization of a cut. Extreme semicuts are shown to be associated with the vertices of the rooted semimetric polytope.
Rinaldi, Giovanni   +8 more
core   +1 more source

Living Inside the UA Space Analog

open access: yes
Immediate accessThis item is made available by the University of Arizona Center for Human Space Exploration (CHaSE) with support from the University of Arizona Libraries.
Tresch, Trent
core   +4 more sources

Corrigendum to “An Easy‐to‐Understand Method to Construct Desired Distance‐Like Measures”

open access: yes
Complexity, Volume 2024, Issue 1, 2024.
Wen Qing Fu   +5 more
wiley   +1 more source

Quasi-isometry invariance of hyperbolicity in semimetric spaces, digraphs and semigroups

open access: yes, 2021
16 pages, previous version (v1) is split into two parts, this is the first ...
openaire   +2 more sources

Calibrated simplex-mapping classification. [PDF]

open access: yesPLoS One, 2023
Heese R, Schmid J, Walczak M, Bortz M.
europepmc   +1 more source

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