Results 11 to 20 of about 5,790,959 (300)

Rank-Metric Lattices [PDF]

open access: yes, 2023
We introduce the class of rank-metric geometric lattices and initiate the study of their structural properties. Rank-metric lattices can be seen as the q-analogues of higher-weight Dowling lattices, defined by Dowling himself in 1971.
Ravagnani, Alberto, Cotardo, Giuseppe
core   +2 more sources

The Dominant Metric Dimension of Corona Product Graphs

open access: yesمجلة بغداد للعلوم, 2021
The metric dimension and dominating set are the concept of graph theory that can be developed in terms of the concept and its application in graph operations.
Rembulan Putri Adirasari   +2 more
doaj   +1 more source

Distance Measures Based on Metric Information Matrix for Atanassov’s Intuitionistic Fuzzy Sets

open access: yesAxioms, 2023
The metric matrix theory is an important research object of metric measure geometry and it can be used to characterize the geometric structure of a set. For intuitionistic fuzzy sets (IFS), we defined metric information matrices (MIM) of IFS by using the
Wenjuan Ren, Zhanpeng Yang, Xipeng Li
doaj   +1 more source

Neutrosophic Triplet Partial Bipolar Metric Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
In this article, neutrosophic triplet partial bipolar metric spaces are obtained. Then some definitions and examples are given for neutrosophic triplet partial bipolar metric space. Based on these definitions, new theorems are given and proved.
Memet Şahin   +2 more
doaj   +1 more source

Cyclic Mappings and Further Results in B-Metric-Like Spaces

open access: yesComplexity, 2021
Fixed point problem of many mappings has been widely studied in the research work of fixed point theory. The generalized metric space is one of the research objects of fixed point theory.
Shengquan Weng   +3 more
doaj   +1 more source

An effective version of definability in metric structures [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
In this paper, a computably definable predicate in metric structures is defined and characterized. Then, it is proved that every separable infinite-dimensional Hilbert structure in an effectively presented language is computable.
Nazanin Roshandel Tavana
doaj   +1 more source

A geometrical representation of the quantum information metric in the gauge/gravity correspondence

open access: yesPhysics Letters B, 2022
We study a geometrical representation of the quantum information metric in the gauge/gravity correspondence. We consider the quantum information metric that measures the distance between the ground states of two theories on the field theory side, one of ...
Asato Tsuchiya, Kazushi Yamashiro
doaj   +1 more source

(In)equivalence of metric-affine and metric effective field theories

open access: yesThe European Physical Journal C, 2022
AbstractIn a geometrical approach to gravity the metric and the (gravitational) connection can be independent and one deals with metric-affine theories. We construct the most general action of metric-affine effective field theories, including a generic matter sector, where the connection does not carry additional dynamical fields.
Pradisi G., Salvio A.
openaire   +4 more sources

UNIQUE FIXED POINT THEOREMS FOR CONTRACTIVE MAPS TYPE IN T 0 -QUASI-METRIC SPACES [PDF]

open access: yes, 2014
In [2], Agyingi proved that every generalized contractive mapping defined in a q-spherically complete T 0 -ultra-quasi-metric space has a unique fixed point.
Yae ́ Ulrich Gaba
core   +1 more source

Transfinite methods in metric fixed-point theory

open access: yesAbstract and Applied Analysis, 2003
This is a brief survey of the use of transfinite induction in metric fixed-point theory. Among the results discussed in some detail is the author's 1989 result on directionally nonexpansive mappings (which is somewhat sharpened), a result of Kulesza and ...
W. A. Kirk
doaj   +1 more source

Home - About - Disclaimer - Privacy