3 papers
math-ph2026
Blocking of 2D bistable reaction-diffusion fronts by obstacles
J. -G. Caputo, G. Cruz-Pacheco, J. Gatlik +1
We investigate numerically the blocking of two-dimensional bistable reaction diffusion fronts by geometric obstacles. Our goal is to derive quantitative criteria for front propagat…
nlin.PS2020
Stopping a reaction-diffusion front
Jean-Guy Caputo, Gustavo Cruz-Pacheco, Benoit Sarels
We revisit the problem of pinning a reaction-diffusion front by a defect, in particular by a reaction-free region. Using collective variables for the front and numerical simulation…
math.SP2020
Spectra of chains connected to complete graphs
J. -G. Caputo, G. Cruz-Pacheco, A. Knippel +1
We characterize the spectrum of the Laplacian of graphs composed of one or two finite or infinite chains connected to a complete graph. We show the existence of localized eigenvect…