activity
20082026
most citedCriteria for pointwise growth and their role in invasion processes

49 citations · 253 across the 59 of their papers we have counts for

collaborators

63 papers

math.AP2026

Oscillations in a scalar differential equation coupled to a diffusive field

Merlin Pelz, Arnd Scheel

We study the emergence of periodic oscillations through a Hopf bifurcation in a scalar diffusion equation on the half line coupled to a dynamic boundary condition. Our results quan…

math.AP2026

Diffusive synchronization of phase waves in the FitzHugh-Nagumo system

Montie Avery, Paul Carter, Björn de Rijk +1

We analyze synchronization of relaxation oscillations in multiple-timescale reaction-diffusion systems. Interpreting synchronization as convergence to frequency-synchronized wave-t…

math.AP2025

Selection mechanisms in front invasion

Montie Avery, Matt Holzer, Arnd Scheel

We review progress on questions related to front propagation into unstable states and point out open problems in the area. We strive to highlight different theoretical perspectives…

math.AP2025

Pulled fronts are not (just) pulled

Montie Avery, Matt Holzer, Arnd Scheel

Front propagation into unstable states is often determined by the linearization, that is, propagation speeds agree with predictions from the linearized equation at the unstable sta…

nlin.PS2025

Vacuum bubble and fissure formation in collective motion with competing attractive and repulsive forces

Olivia Clifton, Angel Chavez, Antonio Madrigal +3

We study the continuum limit of the motion of agents in the plane driven by competing short-range repulsion and long-range attractive forces. At a critical parameter value, we find…

math.DS2025

Reversible switching due to attraction and repulsion: clusters, gaps, sorting, and mixing

Arnd Scheel, Angela Stevens

We describe a phase transition in continuum limits of interacting particle systems that exhibits a vertical bifurcation diagram. The transition is mediated by a competition short-r…