Results 31 to 40 of about 42,564 (231)

FPT-Algorithms for Computing Gromov-Hausdorff and Interleaving Distances Between Trees [PDF]

open access: yes, 2019
The Gromov-Hausdorff distance is a natural way to measure the distortion between two metric spaces. However, there has been only limited algorithmic development to compute or approximate this distance.
Farahbakhsh Touli, Elena, Wang, Yusu
core   +2 more sources

On F-Algebroids and Dubrovin's Duality [PDF]

open access: yes, 2019
In this note we introduce the concept of F-algebroid, and give its elementary properties and some examples. We provide a description of the almost duality for Frobenius manifolds, introduced by Dubrovin, in terms of a composition of two anchor maps of a ...
Morales, John Alexander Cruz   +1 more
core   +2 more sources

Dynamic Metric Learning: Towards a Scalable Metric Space to Accommodate Multiple Semantic Scales [PDF]

open access: yes2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2021
8pages, accepted by CVPR ...
Sun, Yifan   +6 more
openaire   +2 more sources

Characterization of Multiplicative Metric Completeness

open access: yesInternational Journal of Analysis and Applications, 2016
We established fixed point theorems in multiplicative metric spaces. The obtained results generalize Banach contraction principle in multiplicative metric spaces and also characterize completeness of the underlying multiplicative metric space.
Badshshah e Romer, Muhammad Sarwar
doaj   +2 more sources

Fixed Point Results on Multiplicative Semi-Metric Space

open access: yesJournal of Scientific Research, 2020
  In this paper we introduce the notion of the Multiplicative Semi-Metric Space and proved common fixed point theorems. We establish fixed point theorems for four self-maps which can be extended to derive common fixed point theorems involving any finite number of mappings in Multiplicative Semi Metric Space. Further examples are discussed to show
V. Srinivas, B. Vijayabaskerreddy
openaire   +2 more sources

Stationary random metrics on hierarchical graphs via $(\min,+)$-type recursive distributional equations

open access: yes, 2015
This paper is inspired by the problem of understanding in a mathematical sense the Liouville quantum gravity on surfaces. Here we show how to define a stationary random metric on self-similar spaces which are the limit of nice finite graphs: these are ...
Khristoforov, Mikhail   +2 more
core   +3 more sources

Common Fixed Points of Generalized Rational Type Cocyclic Mappings in Multiplicative Metric Spaces

open access: yesDiscrete Dynamics in Nature and Society, 2015
The aim of this paper is to present fixed point result of mappings satisfying a generalized rational contractive condition in the setup of multiplicative metric spaces.
Mujahid Abbas   +2 more
doaj   +1 more source

Skeletally Dugundji spaces

open access: yes, 2012
We introduce and investigate the class of skeletally Dugundji spaces as a skeletal analogue of Dugundji space. The main result states that the following conditions are equivalent for a given space $X$: (i) $X$ is skeletally Dugundji; (ii) Every ...
A Chigogidze   +20 more
core   +1 more source

Common Fixed Points of Locally Contractive Mappings in Multiplicative Metric Spaces with Application

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2015
The aim of this paper is to present common fixed point results of quasi-weak commutative mappings on a closed ball in the framework of multiplicative metric spaces. Example is presented to support the result proved herein.
Mujahid Abbas   +2 more
doaj   +1 more source

An algebraic characterization of complete inner product spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
We present a characterization of complete inner product spaces using en involution on the set of all bounded linear operators on a Banach space. As a metric conditions we impose a “multiplicative” property of the norm for hermitain operators.
Vasile I. Istratescu
doaj   +1 more source

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