Results 81 to 90 of about 1,314 (212)

Solvability and Stability of Solutions of (q, τ)‐Fractional Integro‐Differential Models

Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we investigate a set of nonlinear (q, τ)‐fractional Fredholm integrodifferential equations that involve memory‐type integral kernels and generalized fractional derivatives. Using a Galerkin technique based on (q, τ)‐Legendre polynomials, we designed an approximation solution and provided a numerical scheme for calculating the integral ...
Shaher Momani, Rabha W. Ibrahim, Dumitru Baleanu, Serbay Duran   +3 more
wiley   +1 more source

The Köthe Dual of an Abstract Banach Lattice

Journal of Function Spaces and Applications, 2013
We analyze a suitable definition of Köthe dual for spaces of integrable functions with respect to vector measures defined on δ-rings. This family represents a broad class of Banach lattices, and nowadays it seems to be the biggest class of spaces ...
E. Jiménez Fernández, M. A. Juan, E. A. Sánchez-Pérez   +2 more
doaj   +1 more source

On a Nonlinear Coupled Fractional Differential System With Multiderivative‐Terms and Coupled Closed Boundary Data

Journal of Mathematics, Volume 2026, Issue 1, 2026.
This article is devoted to the study of existence, uniqueness, and Ulam–Hyers stability for a coupled system of two nonlinear Caputo‐type multiterm fractional differential equations equipped with coupled closed boundary data. The concept of coupled closed boundary conditions finds its applications in several physical situations, like composite panels ...
Ahmed Alsaedi, Hafed A. Saeed, Bashir Ahmad, Stanislaw Migorski   +3 more
wiley   +1 more source

The class of Banach lattices is not primary

Forum of Mathematics, Sigma
Building on a recent construction of Plebanek and Salguero-Alarcón, which solved the Complemented Subspace Problem for $C(K)$ -spaces, and the subsequent work of De Hevia, Martínez-Cervantes, Salguero-Alarcón, and Tradacete solving the Complemented
Antonio Acuaviva
doaj   +1 more source

Pareto optimality for nonlinear infinite dimensional control systems

International Journal of Mathematics and Mathematical Sciences, 1990
In this note we establish the existence of Pareto optimal solutions for nonlinear, infinite dimensional control systems with state dependent control constraints and an integral criterion taking values in a separable, reflexive Banach lattice.
Evgenios P. Avgerinos, Nikolaos S. Papageorgiou   +1 more
doaj   +1 more source

The lattice copies of $\ell_1$ in Banach lattices

, 2001
summary:It is known that a Banach lattice with order continuous norm contains a copy of $\ell_1$ if and only if it contains a lattice copy of $\ell_1$.
Wójtowicz, Marek
core  

On Banach Lattice Algebras

, 2016
In this paper, we investigate a characterization of a Banach latticealgebra with a unit to be represented as an AM-f-algebra. We also consider, for a locally compact Hausdor topological space L and a Banach lattice space A, the identification of Cb(L;Z(A)
Yilmaz, Rusen, Altun, Yilmaz
core  

Sequential weak convergence in the bidual of a Banach lattice

, 1975
Let X X be a Banach lattice with separable dual. Then the bidual X X is the closure of X X under sequential monotone weak convergence.
John L. B. Gamlen
core   +1 more source

Embeddings of Banach Spaces Into Banach Lattices and the Gordon–Lewis Property

Positivity, 2001
32 pages ...
Nielsen, Niels Jørgen, Casazza, Peter G.   +1 more
openaire   +2 more sources

A Godefroy—Kalton principle for free Banach lattices

, 2023
Motivated by the Lipschitz-lifting property of Banach spaces introduced by Godefroy and Kalton, we consider the lattice-lifting property, which is an analogous notion within the category of Banach lattices and lattice homomorphisms.
Rodríguez, J., Tradacete, Pedro., Martínez-Cervantes, G., Avilés, A.   +3 more
core   +1 more source