Results 21 to 30 of about 932 (84)

Fixed Point, Data Dependence, and Well‐Posed Problems for Multivalued Nonlinear Contractions

open access: yesJournal of Function Spaces, Volume 2021, Issue 1, 2021., 2021
The aim of the paper is to discuss data dependence, existence of fixed points, strict fixed points, and well posedness of some multivalued generalized contractions in the setting of complete metric spaces. Using auxiliary functions, we introduce Wardowski type multivalued nonlinear operators that satisfy a novel class of contractive requirements ...
Iram Iqbal   +4 more
wiley   +1 more source

Existence Theorems on Advanced Contractions with Applications

open access: yesJournal of Function Spaces, Volume 2021, Issue 1, 2021., 2021
In this research article, by introducing a mapping φ defined on [0,∞)4, with some axioms, we define two generalized contractions called FH+φ‐contractions and φHP+‐contractions. We investigate their mutual relation and establish an existence theorem addressing FH+φ‐contractions with some applications.
Sang Og Kim   +2 more
wiley   +1 more source

Multivalued weakly Picard operators via simulation functions with application to functional equations

open access: yesAIMS Mathematics, 2020
<abstract> <p>The aim of this paper is to introduce the notion of Suzuki type multivalued contraction with simulation functions and then to set up some new fixed point and data dependence results for these type of contraction mappings. We produce an example to support our results.
Azhar Hussain   +3 more
openaire   +3 more sources

A New Class of ψ‐Caputo Fractional Differential Equations and Inclusion

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
In the present research work, we investigate the existence of a solution for new boundary value problems involving fractional differential equations with ψ‐Caputo fractional derivative supplemented with nonlocal multipoint, Riemann–Stieltjes integral and ψ‐Riemann–Liouville fractional integral operator of order γ boundary conditions. Also, we study the
Wafa Shammakh   +3 more
wiley   +1 more source

On the Number of Zeros of Abelian Integrals: A Constructive Solution of the Infinitesimal Hilbert Sixteenth Problem [PDF]

open access: yes, 2008
We prove that the number of limit cycles generated by a small non-conservative perturbation of a Hamiltonian polynomial vector field on the plane, is bounded by a double exponential of the degree of the fields.
A. Glutsyuk   +64 more
core   +2 more sources

Some Random Fixed‐Point Theorems for Weakly Contractive Random Operators in a Separable Banach Space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2021, Issue 1, 2021., 2021
The aim of this paper is to prove a common random fixed‐point and some random fixed‐point theorems for random weakly contractive operators in separable Banach spaces. A random Mann iterative process is introduced to approximate the fixed point. Finally, the main result is supported by an example and used to prove the existence and the uniqueness of a ...
Kenza Benkirane   +3 more
wiley   +1 more source

A general class of noninstantaneous impulsive fractional differential inclusions in Banach spaces

open access: yesAdvances in Difference Equations, 2017
In this paper we introduce the concept of a PC-mild solution to a general new class of noninstantaneous impulsive fractional differential inclusions involving the generalized Caputo derivative with the lower bound at zero in infinite dimensional Banach ...
JinRong Wang   +3 more
doaj   +1 more source

Integrality theorems in the theory of topological strings [PDF]

open access: yes, 2009
We give a simplified derivation of the expression of instanton numbers and of mirror map in terms of Frobenius map on p-adic cohomology and use this expression to prove integrality theorems.
Aganagic   +29 more
core   +1 more source

The Theory of Reich's Fixed Point Theorem for Multivalued Operators

open access: yesFixed Point Theory and Applications, 2010
The purpose of this paper is to present a theory of Reich's fixed point theorem for multivalued operators in terms of fixed points, strict fixed points, multivalued weakly Picard operators, multivalued Picard operators, data dependence of the fixed ...
Tania Laz&#259;r   +3 more
doaj   +1 more source

Data dependence results of a new multistep and S-iterative schemes for contractive-like operators [PDF]

open access: yes, 2012
In this paper, we prove that convergence of a new iteration and S-iteration can be used to approximate to the fixed points of contractive-like operators.
Gursoy, Faik   +2 more
core   +1 more source

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