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Using properties of asymptotically almost periodic solutions we prove existence theorem for piece-wise continuous almost periodic solutions of differential equations with delay and impulses. We apply these results to study almost periodic…

动力系统 · 数学 2013-11-07 Y. M. Myslo , V. I. Tkachenko

Networks of coupled neural systems represent an important class of models in computational neuroscience. In some applications it is required that equilibrium points in these networks remain stable under parameter variations. Here we present…

无序系统与神经网络 · 物理学 2007-05-23 Wilson A. Truccolo , Govindan Rangarajan , Yonghong Chen , Mingzhou Ding

We consider piecewise linear discrete time macroeconomic models, which possess a continuum of equilibrium states. These systems are obtained by replacing rational inflation expectations with a boundedly rational, and genuinely sticky,…

动力系统 · 数学 2017-11-22 Pavel Krejci , Harbir Lamba , Dmitrii Rachinskii

It is rigorously proved that quasilinear impulsive systems possess unpredictable solutions when a perturbation generated by an unpredictable sequence is applied. The existence, uniqueness, as well as asymptotic stability of such solutions…

动力系统 · 数学 2021-11-03 Mehmet Onur Fen , Fatma Tokmak Fen

Recurrent neural networks (RNNs) are widely used throughout neuroscience as models of local neural activity. Many properties of single RNNs are well characterized theoretically, but experimental neuroscience has moved in the direction of…

机器学习 · 计算机科学 2023-01-31 Leo Kozachkov , Michaela Ennis , Jean-Jacques Slotine

The stability and convergence of the neural networks are the fundamental characteristics in the Hopfield type networks. Since time delay is ubiquitous in most physical and biological systems, more attention is being made for the delayed…

神经与进化计算 · 计算机科学 2010-02-08 A. K. Ojha , Dushmanta Mallick , C. Mallick

The time-elapsed model for neural networks is a nonlinear age structured equationwhere the renewal term describes the network activity and influences the dischargerate, possibly with a delay due to the length of connections.We solve a long…

偏微分方程分析 · 数学 2025-03-13 Benoît Perthame , Delphine Salort , Clément Rieutord

The paper examines the discrete-time dynamics of neuron models (of excitatory and inhibitory types) with piecewise linear activation functions, which are connected in a network. The properties of a pair of neurons (one excitatory and the…

chao-dyn · 物理学 2007-05-23 Sitabhra Sinha

In this paper, a class of neutral type competitive neural networks with mixed time-varying delays and leakage delays on time scales is proposed. Based on the exponential dichotomy of linear dynamic equations on time scales, Banach's fixed…

经典分析与常微分方程 · 数学 2019-07-01 Bing Li , Yongkun Li , Xiaofang Meng

This article deals with the consensus problem involving agents with time-varying singularities in the dynamics or communication in undirected graph networks. Existing results provide control laws which guarantee asymptotic consensus. These…

系统与控制 · 计算机科学 2014-04-07 Nilanjan Roy Chowdhury , Srikant Sukumar

We study a generic family of nonlinear dynamics on undirected networks generalising linear consensus. We find a compact expression for its equilibrium points in terms of the topology of the network and classify their stability using the…

动力系统 · 数学 2021-12-07 Marc Homs-Dones , Karel Devriendt , Renaud Lambiotte

In the present paper, we investigate both the global exponential stability and the existence of a periodic solution of a general differential equation with unbounded distributed delays. The main stability criterion depends on the dominance…

神经元与认知 · 定量生物学 2023-09-21 Ahmed Elmwafy , José J. Oliveira , César M. Silva

A lecture notes style review of the equilibrium statistical mechanics of recurrent neural networks with discrete and continuous neurons (e.g. Ising, coupled-oscillators). To be published in the Handbook of Biological Physics…

无序系统与神经网络 · 物理学 2007-05-23 A. C. C. Coolen

While synchronized states, and the dynamical pathways through which they emerge, are often regarded as the paradigm to understand the dynamics of information spreading on undirected networks of nonlinear dynamical systems, when we consider…

适应与自组织系统 · 物理学 2025-07-10 Giulio Colombini , Nicola Guglielmi , Armando Bazzani

Neural mass models are ubiquitous in large scale brain modelling. At the node level they are written in terms of a set of ODEs with a nonlinearity that is typically a sigmoidal shape. Using structural data from brain atlases they may be…

神经元与认知 · 定量生物学 2018-01-26 S Coombes , Y-M Lai , M Sayli , R Thul

We consider the method of Reduction of Dissipativity Domain to prove global Lyapunov stability of Discrete Time Recurrent Neural Networks. The standard and advanced criteria for Absolute Stability of these essentially nonlinear systems…

最优化与控制 · 数学 2015-03-09 Nikita Barabanov , Jayant Singh

This paper discusses aspects of the second order hyperbolic partial differential equation associated with the ideal lossless string under tension and it's relationship to two discrete models. These models are finite differencing in the time…

计算物理 · 物理学 2007-05-23 Georg Essl

This paper is about the study of a new class of fractional-order projection neural networks with impulses which capture the desired features of both the variational inequality and the fractional-order impulsive dynamical systems within the…

最优化与控制 · 数学 2020-11-05 Jin-dong Li , Zeng-bao Wu , Nan-jing Huang

Networks of model neurons with balanced recurrent excitation and inhibition produce irregular and asynchronous spiking activity. We extend the analysis of balanced networks to include the known dependence of connection probability on the…

神经元与认知 · 定量生物学 2014-06-02 Robert Rosenbaum , Brent Doiron

In this paper we consider a class of impulsive nonlinear differential equations with adaptive state-dependent delays. We discuss the existence and uniqueness of solutions of the initial value problem using a Picard-Lindel\"of type argument…

动力系统 · 数学 2026-01-06 Ferenc Hartung