Results 11 to 20 of about 41 (30)

Existence and Multiplicity of Weak Solutions for a Neumann Elliptic Problem with -Laplacian

open access: yesNonautonomous Dynamical Systems, 2020
We are interested in the existence of multiple weak solutions for the Neumann elliptic problem involving the anisotropic -Laplacian operator, on a bounded domain with smooth boundary.
Bohner Martin   +3 more
doaj   +1 more source

Dynamics of almost periodic solutions for a discrete Fox harvesting model with feedback control

open access: yesAdvances in Differential Equations, 2012
We consider the following discrete Fox harvesting model with feedback control of the form {x(n+1)=x(n)exp{β(n)lnr(K(n)x(n))−α(n)−γ(n)u(n)},Δu(n)=−μ(n)u(n)+ν(n)x(n).
J. Alzabut
semanticscholar   +2 more sources

Analytic Study on Hilfer Fractional Langevin Equations with Impulses

open access: yesOpen Journal of Mathematical Analysis, 2018
In this paper, we find a solution of a new type of Langevin equation involving Hilfer fractional derivatives with impulsive effect. We formulate sufficient conditions for the existence and uniqueness of solutions.
S. Harikrishnan   +2 more
semanticscholar   +1 more source

Asymptotically almost periodic solution to a class of Volterra difference equations

open access: yesAdvances in Differential Equations, 2012
This paper is concerned with an asymptotically almost periodic solution to a class of Volterra-type difference equations. We establish a compactness criterion for the sets of asymptotically almost periodic sequences.
W. Long, W. Pan
semanticscholar   +1 more source

On almost automorphic solutions of linear operational‐differential equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 22, Page 1179-1182, 2004., 2004
We prove almost periodicity and almost automorphy of bounded solutions of linear differential equations x′(t) = Ax(t) + f(t) for some class of linear operators acting in a Banach space.
Gaston M. N′Guérékata
wiley   +1 more source

A Massera‐type criterion for almost periodic solutions of higher‐order delay or advance abstract functional differential equations

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 10, Page 881-896, 2004., 2004
Let u be a given bounded uniformly continuous mild solution of a higher‐order abstract functional differential equation of delay or advance type. We give a so‐called Massera‐type criterion for the existence of a mild solution, which is a “spectral component” of u with spectrum similar to the one of the forcing term f.
Nguyen Van Minh, Ha Binh Minh
wiley   +1 more source

On almost periodic solutions of the differential equation x″(t) = Ax(t) in Hilbert spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 28, Issue 4, Page 247-249, 2001., 2001
We prove almost periodicity of solutions of the equation x″(t) = Ax(t) when the linear operator A satisfies an inequality of the form Re(Ax, x) ≥ 0.
Gaston M. N′Guerekata
wiley   +1 more source

Periodic solution for ϕ-Laplacian neutral differential equation

open access: yesOpen Mathematics, 2019
This paper is devoted to the existence of a periodic solution for ϕ-Laplacian neutral differential equation as follows (ϕ(x(t)−cx(t−τ))′)′=f(t,x(t),x′(t)).$$\begin{array}{} (\phi(x(t)-cx(t-\tau))')'=f(t,x(t),x'(t)). \end{array}$$
Yao Shaowen, Cheng Zhibo
doaj   +1 more source

Almost periodic solutions for Fox production harvesting model with delay

open access: yes, 2012
. By utilizing the continuation theorem of coincidence degree theory, we shall prove that a Foxproduction harvesting model with delay has at least one positive almost periodic solution.
J. Alzabut, S. Obaidat
semanticscholar   +1 more source

Pseudo-Almost Periodic and Pseudo-Almost Automorphic Solutions to Some Evolution Equations Involving Theoretical Measure Theory

open access: yes, 2014
Toka DiaganaHoward University,2441 6th Street N.W.,Washington, D.C. 20059,USA.tdiagana@howard.eduKhalil EzzinbiUniversit´e Cadi Ayyad,Faculte´ des Sciences Semlalia,D´epartement deMath´ematiques,BP 2390, Marrakesh, MarocMohsen MiraouiInstitut sup´erieur ...
T. Diagana, K. Ezzinbi, M. Miraoui
semanticscholar   +1 more source

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