Results 51 to 60 of about 234,437 (318)

Fuzzy b-Metric Spaces: Fixed Point Results for ψ-Contraction Correspondences and Their Application

open access: yesAxioms, 2020
In this paper we introduce the concepts of ψ -contraction and monotone ψ -contraction correspondence in “fuzzy b -metric spaces” and obtain fixed point results for these contractive mappings.
Mujahid Abbas   +2 more
doaj   +1 more source

Fixed-Point Theorems for Nonlinear Contraction in Fuzzy-Controlled Bipolar Metric Spaces

open access: yesAxioms, 2023
In this paper, we introduce the concept of fuzzy-controlled bipolar metric space and prove some fixed-point theorems in this space. Our results generalize and expand some of the literature’s well-known results.
Gunaseelan Mani   +4 more
doaj   +1 more source

The Samuel realcompactification of a metric space

open access: yes, 2017
In this paper we introduce a realcompactification for any metric space (X, d), defined by means of the family of all its real-valued uniformly continuous functions.
M. Isabel Garrido   +3 more
core   +1 more source

Ultra Generalized Metric Space [PDF]

open access: yes, 2020
In this paper, for n is a natural number such that n→∞, we described ultra generalized metric space as an ultra generalization of a metric space in such a way that the triangle inequality is replaced by similar ones which involve n unit points instead of
Göçür, Orhan
core   +1 more source

Metric trees in the Gromov--Hausdorff space [PDF]

open access: yes, 2023
summary:Using the wedge sum of metric spaces, for all compact metrizable spaces, we construct a topological embedding of the compact metrizable space into the set of all metric trees in the Gromov--Hausdorff space with finite prescribed values.
Ishiki, Yoshito
core   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

A Fixed Point Theorem of Reich in G-Metric Spaces

open access: yesCubo, 2010
In this paper we prove some fixed point results for mapping satisfying sufficient contractive conditions on a complete G-metric space, also we showed that if the G-metric space is symmetric, then the existence and uniqueness of these fixed point results ...
Zead Mustafa, Hamed Obiedat
doaj  

The Space of Kähler Metrics

open access: yesJournal of Differential Geometry, 2000
27 pages, to appear in J.
openaire   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Reaction Networks and the Metric Structure of Chemical Space(s)

open access: yes, 2019
In this paper, we develop a formal definition of chemical space as a discrete metric space of molecules and analyze its properties. To this end, we utilize the shortest path metric on reaction networks to define a distance function between molecules of ...
Dmitrij Rappoport (1273044)   +2 more
core   +1 more source

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