Phase reduction of waves, patterns, and oscillations subject to spatially extended noise

J MacLaurin - SIAM Journal on Applied Mathematics, 2023 - SIAM
In this paper we present a framework in which one can rigorously study the effect of spatio-
temporal noise on traveling waves, stationary patterns, and oscillations that are invariant …

[HTML][HTML] Noise-driven bifurcations in a nonlinear Fokker–Planck system describing stochastic neural fields

JA Carrillo, P Roux, S Solem - Physica D: Nonlinear Phenomena, 2023 - Elsevier
The existence and characterisation of noise-driven bifurcations from the spatially
homogeneous stationary states of a nonlinear, non-local Fokker–Planck type partial …

Multiscale analysis for traveling-pulse solutions to the stochastic FitzHugh–Nagumo equations

K Eichinger, MV Gnann, C Kuehn - The Annals of Applied …, 2022 - projecteuclid.org
We investigate the stability of traveling-pulse solutions to the stochastic FitzHugh–Nagumo
equations with additive noise. Special attention is given to the effect of small noise on the …

Well-posedness and stability of a stochastic neural field in the form of a partial differential equation

JA Carrillo, P Roux, S Solem - arXiv preprint arXiv:2307.08077, 2023 - arxiv.org
A system of partial differential equations representing stochastic neural fields was recently
proposed with the aim of modelling the activity of noisy grid cells when a mammal travels …

Noise-driven bifurcations in a neural field system modelling networks of grid cells

JA Carrillo, H Holden, S Solem - Journal of Mathematical Biology, 2022 - Springer
The activity generated by an ensemble of neurons is affected by various noise sources. It is
a well-recognised challenge to understand the effects of noise on the stability of such …

The isochronal phase of stochastic pde and integral equations: Metastability and other properties

ZP Adams, J MacLaurin - Journal of Differential Equations, 2025 - Elsevier
We study the dynamics of waves, oscillations, and other spatio-temporal patterns in
stochastic evolution systems, including SPDE and stochastic integral equations …

Stochastic rotating waves

C Kuehn, J MacLaurin, G Zucal - Stochastics and Dynamics, 2022 - World Scientific
Stochastic dynamics has emerged as one of the key themes ranging from models in
applications to theoretical foundations in mathematics. One class of stochastic dynamics …

Stability of traveling waves on exponentially long timescales in stochastic reaction-diffusion equations

CHS Hamster, HJ Hupkes - SIAM Journal on Applied Dynamical Systems, 2020 - SIAM
In this paper we establish the meta-stability of traveling waves for a class of reaction-
diffusion equations forced by a multiplicative noise term. In particular, we show that the …

Neural Fields and Noise-Induced Patterns in Neurons on Large Disordered Networks

D Avitabile, J MacLaurin - arXiv preprint arXiv:2408.12540, 2024 - arxiv.org
We study pattern formation in class of a large-dimensional neural networks posed on
random graphs and subject to spatio-temporal stochastic forcing. Under generic conditions …

Projection methods for Neural Field equations

D Avitabile - SIAM Journal on Numerical Analysis, 2023 - SIAM
Neural field models are nonlinear integro-differential equations for the evolution of neuronal
activity, and they are a prototypical large-scale, coarse-grained neuronal model in …