activity
20072023
most citedSlowly varying control parameters, delayed bifurcations and the stability of spikes in reaction-diffusion systems

41 citations · 239 across the 19 of their papers we have counts for

collaborators
Showing 2020Show all

5 papers · 1 filter

nlin.PS2020★ 6 cited

An Asymptotic Analysis of Localized 3-D Spot Patterns for Gierer-Meinhardt Model: Existence, Linear Stability and Slow Dynamics

Daniel Gomez, Michael J. Ward, Juncheng Wei

Localized spot patterns, where one or more solution components concentrates at certain points in the domain, are a common class of localized pattern for reaction-diffusion systems,…

nlin.PS2020★ 1 cited

Synchrony and Oscillatory Dynamics for a 2-D PDE-ODE Model of Diffusion-Sensing with Small Signaling Compartments

Sarafa A. Iyaniwura, Michael J. Ward

We analyze a class of cell-bulk coupled PDE-ODE models, motivated by quorum and diffusion sensing phenomena in microbial systems, that characterize communication between localized…

nlin.PS2020

Localized Signaling Compartments in 2-D Coupled by a Bulk Diffusion Field: Quorum Sensing and Synchronous Oscillations in the Well-Mixed Limit

Sarafa A. Iyaniwura, Michael J. Ward

We analyze oscillatory instabilities for a coupled PDE-ODE system modeling the communication between localized spatially segregated dynamically active signaling compartments that a…

nlin.PS2020★ 13 cited

Stable Asymmetric Spike Equilibria for the Gierer-Meinhardt Model with a Precursor Field

Theodore Kolokolnikov, Frédéric Paquin-Lefebvre, Michael J. Ward

Precursor gradients in a reaction-diffusion system are spatially varying coefficients in the reaction-kinetics. Such gradients have been used in various applications, such as the h…

nlin.PS2020

Weakly Nonlinear Analysis of Peanut-Shaped Deformations for Localized Spots of Singularly Perturbed Reaction-Diffusion Systems

Tony Wong, Michael J. Ward

Spatially localized 2-D spot patterns occur for a wide variety of two component reaction-diffusion systems in the singular limit of a large diffusivity ratio. Such localized, far-f…