Results 111 to 120 of about 2,555,203 (372)

Controllability of Mild Solution to Hilfer Fuzzy Fractional Differential Inclusion with Infinite Continuous Delay

open access: yesFractal and Fractional
This work investigates the solvability of the generalized Hilfer fractional inclusion associated with the solution set of a controlled system of minty type–fuzzy mixed quasi-hemivariational inequality (FMQHI).
Aeshah Abdullah Muhammad Al-Dosari
doaj   +1 more source

Functional differential equations with infinite delay in Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
In this paper, a definition of the fundamental operator for the linear autonomous functional differential equation with infinite delay in a Banach space is given, and some sufficient and necessary conditions of the fundamental operator being ...
Jin Liang, Tijun Xiao
doaj   +1 more source

Reducible Volterra retarded equations with infinite delay

open access: yesThe São Paulo Journal of Mathematical Sciences, 2008
Our objective here is to survey some of the results obtained for the reducible case of the Volterra retarded equations with infinite delay. In this special case one is able to address global questions for the nonlinear system generated by the Volterra equations using the results obtained for the reduced system.
Waldyr M. Oliva, Carlos Rocha
openaire   +2 more sources

Lessons Learned From a Delayed‐Start Trial of Modafinil for Freezing of Gait in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Freezing of gait (FOG) in people with Parkinson's disease (PwPD) is debilitating and has limited treatments. Modafinil modulates beta/gamma band activity in the pedunculopontine nucleus (PPN), like PPN deep brain stimulation. We therefore tested the hypothesis that Modafinil would improve FOG in PwPD.
Tuhin Virmani   +8 more
wiley   +1 more source

Well-posedness and order preservation for neutral type stochastic differential equations of infinite delay with jumps

open access: yesAIMS Mathematics
In this work, we are concerned with the order preservation problem for multidimensional neutral type stochastic differential equations of infinite delay with jumps under non-Lipschitz conditions. By using a truncated Euler-Maruyama scheme and adopting an
Yongxiang Zhu , Min Zhu
doaj   +1 more source

Controllability of fractional order integro-differential inclusions with infinite delay

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
This paper concerns for controllability of fractional order integro-differential inclusions with infinite delay in Banach spaces. A theorem about the existence of mild solutions to the controllability of fractional order integro-differential inclusions ...
Khalida Aissani   +2 more
doaj   +1 more source

Semigroups on Frechet spaces and equations with infinite delays

open access: yes, 2007
In this paper, we show existence and uniqueness of a solution to a functional differential equation with infinite delay. We choose an appropriate Frechet space so as to cover a large class of functions to be used as initial functions to obtain existence ...
Sengadir, T
core  

On Infinite Delay Integral Equations Having Nonlinear Perturbations

open access: yesJournal of Integral Equations and Applications, 1993
The object of investigation of this paper is the nonlinear integral equation (1) \(x(t)=f(t)+\int^ t_{-\infty}a(t,s)[x(s)+g(s,x(s))]ds\), \(t\in R\). In (1), \(x,f\) and \(g\) stand for \(n\)-vector valued functions, while \(a(t,s)\) is an \(n\) by \(n\) matrix kernel with continuous entries for \(s\leq t\) and \(a(t,s)=0\) for \(s>t\).
openaire   +3 more sources

Cognitive Status in People With Epilepsy in the Republic of Guinea: A Prospective, Case–Control Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective People with epilepsy (PWE) may experience cognitive deficits but fail to undergo formal evaluation. This study compares cognitive status between PWE and healthy controls in the West African Republic of Guinea. Methods A cross‐sectional, case–control study was conducted in sequential recruitment phases (July 2024–July 2025) at Ignace ...
Maya L. Mastick   +14 more
wiley   +1 more source

Output regulation of infinite-dimensional time-delay systems

open access: yes2017 American Control Conference (ACC), 2017
We study output tracking and disturbance rejection for linear infinite-dimensional time-delay systems using dynamic error feedback controllers with state delays. The class of systems covers many partial differential equations with state, input, and output delays.
openaire   +2 more sources

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