On the asymptotic behavior of the NNLIF neuron model for general connectivity strength

MJ Cáceres, JA Cañizo, A Ramos-Lora - arXiv preprint arXiv:2401.13534, 2024 - arxiv.org
We prove new results on the asymptotic behavior of the nonlinear integrate-and-fire neuron
model. Among them, we give a criterion for the linearized stability or instability of equilibria …

A multiple time renewal equation for neural assemblies with elapsed time model

N Torres, B Perthame, D Salort - Nonlinearity, 2022 - iopscience.iop.org
We introduce and study an extension of the classical elapsed time equation in the context of
neuron populations that are described by the elapsed time since last discharge. In this …

The sequence of pseudo-equilibria describes the long-time behaviour of the NNLIF model with large delay

MJ Cáceres, JA Cañizo, A Ramos-Lora - arXiv preprint arXiv:2403.00971, 2024 - arxiv.org
There is a wide range of mathematical models that describe populations of large numbers of
neurons. In this article, we focus on nonlinear noisy leaky integrate and fire (NNLIF) models …

Investigating the integrate and fire model as the limit of a random discharge model: a stochastic analysis perspective

JG Liu, Z Wang, Y Xie, Y Zhang… - Mathematical …, 2021 - mna.episciences.org
In the mean field integrate-and-fire model, the dynamics of a typical neuron within a large
network is modeled as a diffusion-jump stochastic process whose jump takes place once the …

[PDF][PDF] Towards a further understanding of the dynamics in the excitatory NNLIF neuron model: blow-up and global existence

P Roux, D Salort - Kinet. Relat. Models, 2021 - academia.edu
The Nonlinear Noisy Leaky Integrate and Fire (NNLIF) model is widely used to describe the
dynamics of neural networks after a diffusive approximation of the mean-field limit of a …

An understanding of the physical solutions and the blow-up phenomenon for nonlinear noisy leaky integrate and fire neuronal models

MJ Cáceres, A Ramos-Lora - arXiv preprint arXiv:2011.05860, 2020 - arxiv.org
The Nonlinear Noisy Leaky Integrate and Fire neuronal models are mathematical models
that describe the activity of neural networks. These models have been studied at a …

Sequence of pseudoequilibria describes the long-time behavior of the nonlinear noisy leaky integrate-and-fire model with large delay

MJ Cáceres, JA Cañizo, A Ramos-Lora - Physical Review E, 2024 - APS
There is a wide range of mathematical models that describe populations of large numbers of
neurons. In this article, we focus on nonlinear noisy leaky integrate-and-fire (NNLIF) models …

Theoretical study of the emergence of periodic solutions for the inhibitory NNLIF neuron model with synaptic delay

K Ikeda, P Roux, D Salort… - Mathematical …, 2022 - mna.episciences.org
Among other models aimed at understanding self-sustained oscillations in neural networks,
the NNLIF model with synaptic delay was developed almost twenty years ago to model fast …

Weak Convergence Analysis of Online Neural Actor-Critic Algorithms

SCH Lam, J Sirignano, Z Wang - arXiv preprint arXiv:2403.16825, 2024 - arxiv.org
We prove that a single-layer neural network trained with the online actor critic algorithm
converges in distribution to a random ordinary differential equation (ODE) as the number of …

A Synchronization-Capturing Multiscale Solver to the Noisy Integrate-and-Fire Neuron Networks

Z Du, Y Xie, Z Zhou - Multiscale Modeling & Simulation, 2024 - SIAM
The noisy leaky integrate-and-fire (NLIF) model describes the voltage configurations of
neuron networks with an interacting many-particles system at a microscopic level. When …