Results 21 to 30 of about 398 (70)
Nonlinear coupled fixed point theorems in ordered generalized metric spaces with integral type
, 2012 In this article, we study coupled coincidence and coupled common fixed point theorems in ordered generalized metric spaces for nonlinear contraction condition related to a pair of altering distance functions.
Y. Cho +4 more
semanticscholar +1 more source
On balancedness and D-Completeness of the space of Semi-lipschitz functions [PDF]
, 2008 Let (X, d) be a quasi-metric space and (Y, q) be a quasi-normed linear space. We show that the normed cone of semi-Lipschitz functions from (X, d) to (Y, q) that vanish at a point x0 E X, is balanced.
Romaguera, S. +2 more
core +1 more source
A Universal Separable Diversity
Analysis and Geometry in Metric Spaces, 2017 The Urysohn space is a separable complete metric space with two fundamental properties: (a) universality: every separable metric space can be isometrically embedded in it; (b) ultrahomogeneity: every finite isometry between two finite subspaces can be ...
Bryant David, Nies André, Tupper Paul
doaj +1 more source
Fixed point of generalized weakly contractive mappings in ordered partial metric spaces
, 2012 In this article, we prove some fixed point results for generalized weakly contractive mappings defined on a partial metric space. We provide some examples to validate our results.
M. Abbas, T. Nazir
semanticscholar +1 more source
Common fixed point theorem of six self-mappings in Menger spaces using (CLRST) property
Open Mathematics, 2018 In this paper, we study the existence and uniqueness of common fixed point of six self-mappings in Menger spaces by using the common limit range property (denoted by (CLRST)) of two pairs.
Liu Xiao-lan +4 more
doaj +1 more source
Some new fixed point theorems for F-metric spaces
, 2020 The present paper introduces some new fixed point and coupled fixed point theorems for F -metric spaces. We introduce a new fixed point theorem, a Kannan type theorem for asymptotically regular operators and basic coupled fixed point theorems along with some
C. Păcurar
semanticscholar +1 more source
Some strong coupled coincidence and coupled best proximity results on complete metric spaces
Journal of Inequalities and ApplicationsIn this paper, the concept of Wardowski’s class of contraction is integrated with that of g-coupling to define some F-contractive type g -couplings. We establish existence results for a coupled coincidence point, a strong coupled coincidence point, and a ...
D. Eshi +6 more
semanticscholar +1 more source
Common fıxed points of almost generalized (ψ, ϕ)-contractive mappings in ordered metric spaces
, 2012 In this article, we introduce the notion of almost generalized (ψ, ϕ)-contractive mappings in ordered metric spaces and we establish some fixed and common fixed point results in ordered complete metric spaces.
W. Shatanawi, A. Al-Rawashdeh
semanticscholar +1 more source
Existence of doubling measures via generalised nested cubes
, 2011 Working on doubling metric spaces, we construct generalised dyadic cubes adapting ultrametric structure. If the space is complete, then the existence of such cubes and the mass distribution principle lead into a simple proof for the existence of doubling
Käenmäki, Antti +2 more
core +1 more source
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014 In this paper, we study some tripled fixed and coincidence point theorems for two mappings F : X × X × X → X and ɡ : X → X satisfying a nonlinear contraction based on ϕ-maps. Our results extend and improve many existing results in the literature.
Shatanawi Wasfi +2 more
doaj +1 more source