Results 41 to 50 of about 591,069 (266)

Fixed point theorems for $alpha$-contractive mappings [PDF]

Sahand Communications in Mathematical Analysis, 2015
In this paper we prove existence the common fixed point with different conditions for $alpha-psi$-contractive mappings. And generalize weakly Zamfirescu map in to modified weakly Zamfirescu map.
Hojjat Afshari, Mojtaba Sajjadmanesh
doaj  

Some Common Fixed Point Theorems in Partially Ordered Sets

Journal of Applied Mathematics, 2020
The purpose of this paper is to prove some new fixed point theorem and common fixed point theorems of a commuting family of order-preserving mappings defined on an ordered set, which unify and generalize some relevant fixed point theorems.
Khadija Bouzkoura, Said Benkaddour
doaj   +1 more source

A Geometric Approach to Combinatorial Fixed-Point Theorems [PDF]

, 2013
We develop a geometric framework that unifies several different combinatorial fixed-point theorems related to Tucker's lemma and Sperner's lemma, showing them to be different geometric manifestations of the same topological phenomena.
Grant, Elyot, Ma, Will
core  

Fixed Point Theorems via Auxiliary Functions

Journal of Applied Mathematics, 2012
We prove new fixed point theorems in the framework of partially ordered metric spaces. The main result is an extension and a generalization of many existing results in the literature. An example is also considered to illustrate the main result.
Erdal Karapınar, Peyman Salimi
doaj   +1 more source

GENERALIZED FIXED POINT THEOREMS IN G-CONE METRIC SPACES INVOLVING Φ-CONTRACTIONS AND AUXILIARY PERTURBATIONS [PDF]

Journal of Mechanics of Continua and Mathematical Sciences
In this work, we provide a set of enhanced fixed-point theorems over Banach spaces with normal cones in the context of G-cone metric spaces. Our results extend and generalize existing theorems by incorporating φ-contractive mappings and perturbation ...
Achala Mishra, Hiral Raja
doaj   +1 more source

Common Fixed Point Theorems in Fuzzy Metric Spaces

, 2016
In this paper we used the concept of compatible of type (P) in fuzzy metric spaces. Our result generalize earlier results due to Vasuki [18], Chugh and Kumar [3] and others. 2000 Mathematics Subject Classification: 54H25, 47H10.
R. N. Patel, M. K. Tiwari
semanticscholar   +1 more source

Fixed point theorems for asymptotically contractive mappings [PDF]

, 2003
In this short paper, we prove fixed point theorems for nonexpansive mappings whose domains are unbounded subsets of Banach spaces. These theorems are generalizations of Penot's result in [Proc. Amer. Math.
Suzuki, Tomonari
core   +4 more sources

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

Equivalents of maximum principles for several spaces

Topological Algebra and its Applications, 2022
According to our long-standing Metatheorem, certain maximum theorems can be equivalently reformulated to various types of fixed point theorems, and conversely.
Park Sehie
doaj   +1 more source

Wardowski type fixed point theorems in complete metric spaces

, 2016
In this paper, we state and prove Wardowski type fixed point theorems in metric space by using a modified generalized F-contraction maps. These theorems extend other well-known fundamental metrical fixed point theorems in the literature (Dung and Hang in
H. Piri, Poom Kumam
semanticscholar   +1 more source