Results 41 to 50 of about 2,649,766 (88)

Approximating fixed points of nonexpansive and generalized nonexpansive mappings

, 1991
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 1, Page 81-86, 1993.
M. Maiti, B. Saha
wiley   +1 more source

A fixed point theorem of Caccioppoli - Kannan type on a class of generalized metric spaces

, 2014
In this paper we prove a Caccioppoli type Kannan’s fixed point theorem in g.m.s. that includes Kannan’s fixed point theorem in g.m.s. of P.K. Saha (Th. 2.1[4]) and of Dorel Mihet (Th. 2.1[5]).
H. Dasgupta, S. Chakrabarti, P. Chakraborty   +2 more
semanticscholar   +1 more source

Maia type fixed point theorems for Ćirić-Prešić operators

Acta Universitatis Sapientiae: Mathematica, 2018
The main aim of this paper is to obtain Maia type fixed point results for Ćirić-Prešić contraction condition, following Ćirić L. B. and Prešić S. B. result proved in [Ćirić L. B.; Prešić S. B.
Balazs Margareta-Eliza
doaj   +1 more source

CONTINUITY OF THE TYCHONOFF FUNCTOR τ [PDF]

, 1990
Let C be a class of the inverse systems X = {Xλ, fαβ,A}. We say that a functor F is C-continuous if F(limX) is homeomorphic with lim F(X). In the present paper the continuity of Tychonoff functor τ is investigated.
Ivan Lončar
core   +1 more source

A characterization of metric completeness

, 1977
A proof is given of a theorem, relevant to fixed-point theory, which implies that a metric space (X, d) is complete if and only if, for each continuous function h: X -* R bounded below on X, there is a point x0 such that h(xo) h(x) d(xn, x) > 0 ...
J. D. Weston
semanticscholar   +1 more source

Partial metric spaces with negative distances and fixed point theorems [PDF]

, 2015
In this paper we consider partial metric spaces in the sense of O'Neill. We introduce the notions of strong partial metric spaces and Cauchy functions.
Assaf, Samer, Pal, Koushik
core  

Interpolative Rus-Reich-Ćirić Type Contractions via Simulation Functions

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In this paper, we introduce the notion of interpolative Rus-Reich-Ćirić type 𝒵- contractions in the setting of complete metric space. We also consider some immediate consequences of our main results.
Karapınar Erdal, Agarwal Ravi P.
doaj   +1 more source

The fixed point property for arc component preserving mappings of non-metric tree-like continua [PDF]

, 2005
The main purpose of this paper is to study the fixed point property of non-metric tree-like continua. Using the inverse systems method, it is proved that if X is a non-metric tree-like continuum and if f:X­→X is a mapping which sends each arc component ...
I. Lončar
core  

Tripled and coincidence fixed point theorems for contractive mappings satisfying Φ-maps in partially ordered metric spaces

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, Postolache Mihai, Mustafa Zead   +2 more
doaj   +1 more source

Homological selections and fixed-point theorems

, 2016
A homological selection theorem for C-spaces, as well as, a finite-dimensional homological selection theorem is established. We apply the finite-dimensional homological selection theorem to obtain fixed-point theorems for usco homologically UV^n set ...
Valov, Vesko
core   +1 more source