Results 31 to 40 of about 37,732 (162)

Existence and stability of solutions of ψ-Hilfer fractional functional differential inclusions with non-instantaneous impulses

open access: yesAIMS Mathematics, 2021
In this paper, we prove two existence results of solutions for an ψ-Hilfer fractional non-instantaneous impulsive differential inclusion in the presence of delay in an infinite dimensional Banah spaces.
A.G. Ibrahim, A.A. Elmandouh
doaj   +1 more source

On a broad category of multivalued weakly Picard operators

open access: yes, 2017
In the present paper, considering a recent technique which is used by Jleli and Samet [10] for fixed points of single-valued maps, we introduce a new concept of multivalued θ-contractions on metric spaces and prove that some of such mappings are ...
H. Hançer, Gülhan Minak, I. Altun
semanticscholar   +1 more source

Heuristic introduction to weakly Picard operator theory [PDF]

open access: yesCreative Mathematics and Informatics, 2014
In this paper we study the impact of weakly Picard operator theory, [see I. A. Rus, Picard operators and applications, Sc. Math. Japonicae, 58 (2003), No. 1, 191–219] on the following problem: what can we do in order to find conditions under which a given operator is a weakly Picard operator?
openaire   +2 more sources

On the homogenization of partial integro-differential-algebraic equations [PDF]

open access: yes, 2016
We present a Hilbert space perspective to homogenization of standard linear evolutionary boundary value problems in mathematical physics and provide a unified treatment for (non-)periodic homogenization problems in thermodynamics, elasticity, electro ...
Waurick, Marcus
core   +2 more sources

Collapsing D-Branes in Calabi-Yau Moduli Space: I [PDF]

open access: yes, 2000
We study the quantum volume of D-branes wrapped around various cycles in Calabi-Yau manifolds, as the manifold's moduli are varied. In particular, we focus on the behaviour of these D-branes near phase transitions between distinct low energy physical ...
Ashtekar   +79 more
core   +4 more sources

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

Iterates of Bernstein Type Operators on a Triangle with All Curved Sides

open access: yesAbstract and Applied Analysis, 2014
We consider some Bernstein-type operators as well as their product and Boolean sum for a function defined on a triangle with all curved sides. Using the weakly Picard operators technique and the contraction principle, we study the convergence of the ...
Teodora Cătinaş
doaj   +1 more source

Semilinear geometric optics with boundary amplification [PDF]

open access: yes, 2012
We study weakly stable semilinear hyperbolic boundary value problems with highly oscillatory data. Here weak stability means that exponentially growing modes are absent, but the so-called uniform Lopatinskii condition fails at some boundary frequency ...
Alinhac   +6 more
core   +5 more sources

Multivalued Pseudo-Picard Operators and Fixed Point Results

open access: yesJournal of Function Spaces and Applications, 2013
We introduce the concept of multivalued pseudo-Picard (MPP) operator on a metric space. This concept is weaker than multivalued weakly Picard (MWP) operator, which is given by M. Berinde and V. Berinde (2007).
Gülhan Mınak, Özlem Acar, Ishak Altun
doaj   +1 more source

A Volterra functional-integral equation, via weakly Picard operators technique [PDF]

open access: yesCarpathian Journal of Mathematics, 2014
In this paper we consider a Volterra functional-integral equation with linear modifications of the arguments. We use weakly Picard operators’ technique and we obtain existence and data dependence results for the solutions.
openaire   +1 more source

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