Results 81 to 90 of about 165,981,085 (120)

Applications of the Hausdorff measure of noncompactness in some sequence spaces of weighted means [PDF]

, 2010
In the present paper, we establish some identities or estimates for the operator norms and the Hausdorff measures of noncompactness of certain operators on some sequence spaces of weighted means.
Mursaleen, M., Abdullah K. Noman, Noman, Abdullah K., M. Mursaleen   +3 more
core   +1 more source

On a measure of noncompactness in the space of regulated functions and its applications

, 2018
In this paper we formulate a criterion for relative compactness in the space of functions regulated on a bounded and closed interval. We prove that the mentioned criterion is equivalent to a known criterion obtained earlier by D.
Zając Tomasz, Banaś Józef
core   +2 more sources

On Convergence of a Family of Random Walks in the Infinite Dimensional Stiefel Manifold

International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.
In this paper, we study random walks taking values in an infinite‐dimensional space—either a Hilbert space or an infinite‐dimensional manifold embedded in it, such as the Stiefel manifold. These random walks arise in problems in shape theory, particularly when stochastic optimization is applied.
Andrea C. G. Mennucci, Shikha Binwal
wiley   +1 more source

Call for Submissions [PDF]

, 2022
Call for ...
The Measure
core  

Existence of solutions for mixed Volterra-Fredholm integral equations

Electronic Journal of Differential Equations, 2012
In this article, we give some results concerning the continuity of the nonlinear Volterra and Fredholm integral operators on the space $L^{1}[0,infty)$.
Asadollah Aghajani, Yaghoub Jalilian, Kishin Sadarangani   +2 more
doaj  

Fractional Retarded Dynamic Equations on Time Scales with Δ-HKP Integral

Fractal and Fractional
This paper investigates the existence of pseudosolutions for a class of fractional retarded dynamic equations on time scales in Banach spaces endowed with the weak topology.
Aneta Sikorska-Nowak, Grzegorz Nowak
doaj   +1 more source

The Technique of Quadruple Fixed Points for Solving Functional Integral Equations under a Measure of Noncompactness

, 2020
Under the idea of a measure of noncompactness, some fixed point results are proposed and a generalization of Darbo’s fixed point theorem is given in this manuscript.
Amal A. Khalil, Hasanen A. Hammad
core   +1 more source

Editorial Staff [PDF]

, 2022
Editorial Staff and Faculty Review Board ...
The Measure
core  

Existence theory for nonlinear volterra integral and differential equations

Journal of Inequalities and Applications, 2001
In this paper we prove the existence theorems for the integrodifferential equation where in first part are functions with values in a Banach space and the integral is taken in the sense of Bochner. In second part are weakly–weakly sequentially
Sikorska Aneta
doaj  

On matrix transformations and Hausdorff measure of noncompactness of Euler difference sequence spaces of fractional order

, 2021
In the present paper, some results on matrix mappings and Hausdorff measure of noncompactness of certain generalized Euler difference sequence spaces of fractional order are discussed.
Kadak, Ugur, Baliarsingh, P.
core