Results 31 to 40 of about 756,869 (169)

The induced generalized OWA operator (WP) [PDF]

open access: yes, 2013
[spa] Se presenta el operador OWA generalizado inducido (IGOWA). Es un nuevo operador de agregación que generaliza al operador OWA a través de utilizar las principales características de dos operadores muy conocidos como son el operador OWA generalizado ...
Merigó Lindahl, José M.   +1 more
core   +6 more sources

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

Almost Picard Operators [PDF]

open access: yes, 2019
3rd International Conference of Mathematical Sciences (ICMS) -- SEP 04-08, 2019 -- Maltepe Univ, Istanbul, TURKEYThe concept of Picard operator is one of the most important concept of fixed point theory.
Ishak Altun   +3 more
core   +1 more source

Implicit Fractional Differential Equations in Banach Spaces via Picard and Weakly Picard Operator Theory

open access: yes, 2020
In this paper, by employing fixed-point methods, we obtain the existence and uniqueness results for the nonlinear implicit fractional differential equations in Banach spaces. Further, we obtain the uniqueness, dependence of the solution on the initial condition as well as on the functions involved on the right-hand side by means of Picard and weakly ...
Sutar, Sagar T., Kucche, Kishor D.
openaire   +3 more sources

Iterative functional-differential system with retarded argument

open access: yesJournal of Numerical Analysis and Approximation Theory, 2006
Existence, uniqueness and data dependence results of solution to the Cauchy problem for iterative functional-differential system with delays are obtained using weakly Picard operator theory.
Diana Otrocol
doaj   +2 more sources

Ulam-Hyers stability of fixed point equations for multivalued operators on KST spaces [PDF]

open access: yesSurveys in Mathematics and its Applications, 2014
In this paper we define the notions of Ulam-Hyers stability on KST spaces and cw-weakly Picard operator for the multivalued operators case in order to establish a relation between these.
Liliana Guran Manciu
doaj  

Krasnoselskii's theorem in generalized Banach spaces and application

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
The purpose of this paper is to extend Krasnoselskii's fixed point theorem to the case of generalized Banach spaces for singlevalued and multivalued operators.
I. R. Petre, Adrian Petrusel
doaj   +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

From a Dieudonne theorem concerning the Cauchy problem to an open problem in the theory of weakly Picard operators [PDF]

open access: yesCarpathian Journal of Mathematics, 2014
Let (X, d) be a complete metric space and let f : X → X be a self operator. In this paper we study the following two problems: Problem 1. Let f be such that its fixed points set is a singleton, i.e., Ff = {x∗}. Under which conditions the next implication does hold: f is asymptotically regular ⇒ f is a Picard operator? Problem 2.
Berinde, Vasile   +2 more
openaire   +2 more sources

Fixed points for multivalued contractions on a metric space [PDF]

open access: yesSurveys in Mathematics and its Applications, 2010
The purpose of this paper is to prove a fixed point theorem for multivalued operators and a fixed point theorem for multivalued weakly Picard operators in the terms of τ -distance.
Liliana Guran
doaj  

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