Results 21 to 30 of about 6,565 (158)

Dynamics and Ulam Stability for Fractional q-Difference Inclusions via Picard Operators Theory

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In this manuscript, by using weakly Picard operators we investigate the Ulam type stability of fractional q-difference An illustrative example is given in the last section.
Abbas Saïd, Benchohra Mouffak, Karapınar Erdal   +2 more
doaj   +1 more source

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

, 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, Aspinwall, Aspinwall, Aspinwall, Aspinwall, Aspinwall, Aspinwall, Aspinwall, Aspinwall, B.R. Greene, Batyrev, Batyrev, Becker, Berglund, Bershadsky, Brunner, C.I. Lazaroiu, Candelas, Candelas, Candelas, Candelas, Ceresole, Cheung, Coddington, Cox, Deligne, Deligne, Deligne, Diaconescu, Font, Fulton, Fulton, Gelfand, Gelfand, Greene, Greene, Greene, Gromov, Gross, Gross, Gross, Harvey, Hitchin, Horja, Hosono, Hosono, Ishibashi, Ishibashi, Joyce, Kachru, Klemm, Kontsevich, Landman, Libgober, Luke, McDuff, Minasian, Moore, Moore, Moore, Morrison, Morrison, Morrison, Morrison, Morrison, Norlund, Oda, Oda, Ooguri, Polchinski, Recknagel, Recknagel, Recknagel, Schmidt, Strominger, Strominger, Vafa, Witten, Witten, Witten   +79 more
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Heuristic introduction to weakly Picard operator theory [PDF]

Creative 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

Nonperturbative Effective Actions of N=2 Supersymmetric Gauge Theories [PDF]

, 1995
We elaborate on our previous work on N=2 supersymmetric Yang-Mills theory. In particular, we show how to explicitly determine the low energy quantum effective action for $G=SU(3)$ from the underlying hyperelliptic Riemann surface, and calculate the ...
Klemm, A., Lerche, W., Theisen, S.
core   +2 more sources

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

, 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

Iterated function systems consisting of continuous functions satisfying Banach’s orbital condition

Annals of the West University of Timisoara: Mathematics and Computer Science, 2018
We introduce the concept of iterated function system consisting of continuous functions satisfying Banach’s orbital condition and prove that the fractal operator associated to such a system is weakly Picard. Some examples are provided.
Miculescu Radu, Mihail Alexandru, Savu Irina   +2 more
doaj   +1 more source

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

Fixed 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 Lazăr, Ghiocel Moţ, Gabriela Petruşel, Silviu Szentesi   +3 more
doaj   +1 more source

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

, 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

A class of abstract Volterra equations, via weakly Picard operators technique [PDF]

Mathematical Inequalities & Applications, 2010
Summary: We consider the following abstract Volterra equations: \[ x(t) = G(t,g(x)(t),x(t),x(0)) + \int ^t_{-t} K (t,s,x(s),x(h(s)))\,ds,\quad t \in \mathbb R \] and \[ x(t) = G(t,g(x)(t),x(t),x(0)) + \int ^{|t|}_{-|t|} K (t,s,x(s),x(h(s)))\,ds,\quad t \in\mathbb R.
Şerban, M. A., Rus, I. A., Petruşel, A.   +2 more
openaire   +2 more sources

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

Advances 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, AG Ibrahim, D O’Regan, Yong Zhou   +3 more
doaj   +1 more source