Results 81 to 90 of about 8,124,716 (387)

General decay of the solution for a viscoelastic wave equation with a time-varying delay term in the internal feedback

open access: yes, 2012
In this paper we consider a viscoelastic wave equation with a time-varying delay term, the coefficient of which is not necessarily positive. By introducing suitable energy and Lyapunov functionals, under suitable assumptions, we establish a general ...
Abdallah C.   +7 more
core   +1 more source

Time decay of scaling invariant Schroedinger equations on the plane [PDF]

open access: yes, 2014
We prove the sharp L^1-L^{\infty} time-decay estimate for the 2D-Schroedinger equation with a general family of scaling critical electromagnetic potentials.Comment: 26 ...
Fanelli, L.   +3 more
core   +1 more source

New general decay result for a fourth-order Moore-Gibson-Thompson equation with memory

open access: yesElectronic Research Archive, 2020
In this paper, we consider the fourth-order Moore-Gibson- Thompson equation with memory recently introduced by (Milan J. Math. 2017, 85: 215-234) that proposed the fourth-order model.
Wenjun Liu, Zhi-Jing Chen, Zhiyu Tu
semanticscholar   +1 more source

POLYNOMIAL DECAY OF CORRELATIONS IN THE GENERALIZED BAKER'S TRANSFORMATION [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2013
We introduce a family of area preserving generalized baker's transformations acting on the unit square and having sharp polynomial rates of mixing for Hölder data. The construction is geometric, relying on the graph of a single variable "cut function".
Bose, C., Murray, R.
openaire   +4 more sources

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu   +11 more
wiley   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Mathematical model of flux relaxation phenomenon

open access: yes, 2010
The investigations on the flux relaxation phenomenon of a type-II superconductor are important because they provide the information about the flux pinning ability and current-carrying ability of the superconductor.
Ma, Rongchao
core   +1 more source

Existence and a general decay results for a viscoelastic plate equation with a logarithmic nonlinearity

open access: yesCommunications on Pure and Applied Analysis, 2019
In this paper, we consider a viscoelastic plate equation with a logarithmic nonlinearity. Using the Galaerkin method and the multiplier method, we establish the existence of solutions and prove an explicit and general decay rate result.
M. Al‐Gharabli   +2 more
semanticscholar   +1 more source

New general decay results for a von Karman plate equation with memory-type boundary conditions

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2020
In this paper we consider a von Karman plate equation with memory-type boundary conditions. By assuming the relaxation function \begin{document}$ k_i $\end{document} \begin{document}$ (i = 1, 2) $\end{document} with minimal conditions on the \begin ...
B. Feng, A. Soufyane
semanticscholar   +1 more source

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