Results 31 to 40 of about 300 (51)

Existence of the Conformable Double Laplace–Elzaki Transform and Applications

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
In this study, we introduce and establish the existence of the conformable fractional Laplace–Elzaki transform (CLET), a new integral transform designed to handle fractional‐order problems. Several fundamental properties and theorems of the CLET are derived and discussed.
Zaid Zaqzaq   +3 more
wiley   +1 more source

On the mild solutions of higher‐order differential equations in Banach spaces

open access: yesAbstract and Applied Analysis, Volume 2003, Issue 15, Page 865-880, 2003., 2003
For the higher‐order abstract differential equation u(n)(t) = Au(t) + f(t), t ∈ ℝ, we give a new definition of mild solutions. We then characterize the regular admissibility of a translation‐invariant subspace ℳ of BUC(ℝ, E) with respect to the above‐mentioned equation in terms of solvability of the operator equation AX − X𝒟n = C.
Nguyen Thanh Lan
wiley   +1 more source

When unit groups of continuous inverse algebras are regular Lie groups

open access: yes, 2012
It is a basic fact in infinite-dimensional Lie theory that the unit group G(A) of a continuous inverse algebra A is a Lie group. We describe criteria ensuring that the Lie group G(A) is regular in Milnor's sense.
Glockner, Helge, Neeb, Karl-Hermann
core   +1 more source

Abstract Cauchy Problem of Conformable Type and Operator Ideals in Hilbert Space

open access: yesJournal of Function Spaces, Volume 2025, Issue 1, 2025.
In this paper, we focus our study on the fractional homogeneous abstract Cauchy problems of conformable type, wβ(t) = Uw(t), t ∈ [0, T), T ≤ ∞, w(0) = x, where U is a linear operator that generates a fractional β‐semigroup on a Hilbert space H. In fact, we gave an answer to the question if U is the infinitesimal generator of a conformable β‐semigroup ...
Sharifa Al−Sharif   +3 more
wiley   +1 more source

Large diffusivity finite‐dimensional asymptotic behaviour of a semilinear wave equation

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 8, Page 409-427, 2003., 2003
We study the effects of large diffusivity in all parts of the domain in a linearly damped wave equation subject to standard zero Robin‐type boundary conditions. In the linear case, we show in a given sense that the asymptotic behaviour of solutions verifies a second‐order ordinary differential equation.
Robert Willie
wiley   +1 more source

Existence of positive periodic solutions for evolution equations with delay in ordered Banach spaces

open access: yesOpen Mathematics
The main focus of this study is to discuss the existence of positive ω\omega -periodic mild solutions for evolution equation with delay in an ordered Banach space EE. Under the ordered conditions of the growth exponent of the nonlinearity gg with respect
Zhang Jing, Gou Haide
doaj   +1 more source

A Katznelson-Tzafriri theorem for measures

open access: yes, 2014
This article generalises the well-known Katznelson-Tzafriri theorem for a $C_0$-semigroup $T$ on a Banach space $X$, by removing the assumption that a certain measure in the original result be absolutely continuous.
Seifert, David
core   +1 more source

A Modified Regularization Method for Inverse Problems of Nonhomogeneous Differential Operator Equation

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This paper investigates an abstract nonhomogeneous backward Cauchy problem governed by an unbounded linear operator in a Hilbert space H. The coefficient operator in the equation is assumed to be unbounded, self‐adjoint, positive, and to possess a discrete spectrum, with data prescribed at the final time t = T.
Nihed Teniou, Xian-Ming Gu
wiley   +1 more source

On an nth‐order infinitesimal generator and time‐dependent operator differential equation with a strongly almost periodic solution

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 32, Issue 9, Page 573-578, 2002., 2002
In a Banach space, if u is a Stepanov almost periodic solution of a certain nth‐order infinitesimal generator and time‐dependent operator differential equation with a Stepanov almost periodic forcing function, then u, u′, …, u (n−2) are all strongly almost periodic and u (n−1) is weakly almost periodic.
Aribindi Satyanarayan Rao
wiley   +1 more source

Solvable Systems of Linear Differential Equations

open access: yes, 2009
The asymptotic iteration method (AIM) is an iterative technique used to find exact and approximate solutions to second-order linear differential equations.
A. Durmus   +18 more
core   +1 more source

Home - About - Disclaimer - Privacy