Results 41 to 50 of about 438 (172)

Global exponential convergence of delayed inertial Cohen–Grossberg neural networks

open access: yesNonlinear Analysis, 2023
In this paper, the exponential convergence of delayed inertial Cohen–Grossberg neural networks (CGNNs) is studied. Two methods are adopted to discuss the inertial CGNNs, one is expressed as two first-order differential equations by selecting a variable ...
Yanqiu Wu   +4 more
doaj   +1 more source

Exponential Stability of Cohen-Grossberg Neural Networks with Impulse Time Window

open access: yesDiscrete Dynamics in Nature and Society, 2016
This paper concerns the problem of exponential stability for a class of Cohen-Grossberg neural networks with impulse time window and time-varying delays.
Mei Liu, Haijun Jiang, Cheng Hu
doaj   +1 more source

Stability Analysis of Different Quaternion‐Valued Impulsive BAM Neural Networks With Unknown Parameters and Time‐Varying Delays

open access: yesEngineering Reports, Volume 8, Issue 1, January 2026.
This work tackles the unresolved stability problem of heterogeneous quaternion‐valued BAM neural networks plagued by unknown parameters, time‐varying delays, and impulses. By synergizing Lyapunov theory with inequality techniques, we establish rigorous, yet practical, global stability conditions.
Xi Long, Yaqin Li
wiley   +1 more source

Causal disconnectomics of motion perception networks: insights from transcranial magnetic stimulation‐induced BOLD responses

open access: yesThe Journal of Physiology, Volume 604, Issue 1, Page 503-526, 1 January 2026.
Abstract figure legend Differential behavioural and network effects of transcranial magnetic stimulation applied to the early visual areas compared to the motion‐sensitive medio‐temporal cortex. EVA, early visual areas; MT, medio‐temporal cortex; TMS, transcranial magnetic stimulation.
Estelle Raffin   +6 more
wiley   +1 more source

Exponential stability analysis for delayed stochastic Cohen-Grossberg neural network [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2010
In this paper, the exponential stability problems are addressed for a class of delayed Cohen-Grossberg neural networks which are also perturbed by some stochastic noises.
Guanjun Wang, Jinling Liang
doaj   +1 more source

Periodic Solutions to a Ring of Identical Cells With Delay via the Equivariant Degree Method

open access: yesInternational Journal of Differential Equations, Volume 2026, Issue 1, 2026.
We investigate the existence and multiplicity of bifurcating solutions in a Hopfield–Cohen–Grossberg network with n identical components and time delays. Applying the equivariant degree method, we derive sufficient conditions guaranteeing periodic solutions and their multiplicities. Two examples are provided to exemplify the theoretical results.
Shi Yu, Igor Freire
wiley   +1 more source

Impulsive Memristive Cohen–Grossberg Neural Networks Modeled by Short Term Generalized Proportional Caputo Fractional Derivative and Synchronization Analysis

open access: yesMathematics, 2022
The synchronization problem for impulsive fractional-order Cohen–Grossberg neural networks with generalized proportional Caputo fractional derivatives with changeable lower limit at any point of impulse is studied.
Ravi Agarwal, Snezhana Hristova
doaj   +1 more source

Updates and future perspectives on neuropsychiatric symptoms in Alzheimer's disease

open access: yesAlzheimer's &Dementia, Volume 21, Issue 3, March 2025.
Abstract Neuropsychiatric symptoms (NPS) are common throughout the Alzheimer's disease (AD) continuum and profoundly affect patients, caregivers, and health‐care systems. This review synthesizes key research presented in the 2022 and 2023 Alzheimer's Association International Society to Advance Alzheimer's Research and Treatment Neuropsychiatric ...
Myuri Ruthirakuhan   +4 more
wiley   +1 more source

On the Stability with Respect to H-Manifolds for Cohen–Grossberg-Type Bidirectional Associative Memory Neural Networks with Variable Impulsive Perturbations and Time-Varying Delays

open access: yesMathematics, 2020
The present paper is devoted to Bidirectional Associative Memory (BAM) Cohen−Grossberg-type impulsive neural networks with time-varying delays.
Gani Stamov   +3 more
doaj   +1 more source

A Novel Analysis of Hopf Bifurcation for a Generalized Binary Fractional‐Order Neural Network Involving Mixed Delays

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This paper provides an extensive binary fractional‐order neural network system with mixed delays consisting of two discrete delays and two distributed delays and emphasizes novel bifurcation methods and theoretical analysis. First, the original system is transformed into a five‐neuron fractional‐order neural network with four delays by introducing ...
Long Li, Yanxia Zhang, Mengxin Chen
wiley   +1 more source

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