Spots, traps, and patches: Asymptotic analysis of localized solutions to some linear and nonlinear diffusive systems

MJ Ward - Nonlinearity, 2018 - iopscience.iop.org
Localized spatial patterns commonly occur for various classes of linear and nonlinear
diffusive processes. In particular, localized spot patterns, where the solution concentrates at …

Numerical algorithms based on Galerkin methods for the modeling of reactive interfaces in photoelectrochemical (PEC) solar cells

M Harmon, IM Gamba, K Ren - Journal of Computational Physics, 2016 - Elsevier
This work concerns the numerical solution of a coupled system of self-consistent reaction–
drift–diffusion–Poisson equations that describes the macroscopic dynamics of charge …

Slow migration of brine inclusions in first-year sea ice

N Kraitzman, K Promislow, B Wetton - SIAM Journal on Applied Mathematics, 2022 - SIAM
We derive a thermodynamically consistent model for liquid-solid phase change in sea ice by
incorporating a phase sensitive scalar to a classical framework of liquid-solid phase change …

Existence, stability, and dynamics of ring and near-ring solutions to the saturated Gierer--Meinhardt model in the semistrong regime

IR Moyles, MJ Ward - SIAM Journal on Applied Dynamical Systems, 2017 - SIAM
We analyze a singularly perturbed reaction-diffusion system in the semistrong diffusion
regime in two spatial dimensions where an activator species is localized to a closed curve …

Quasisteady patterns in interfaces: Folding and Faceting

V Nguyen, K Promislow, B Wetton - arXiv preprint arXiv:2501.15342, 2025 - arxiv.org
We present a systematic derivation of the gradient flows associated to a broad class of
interfacial energies, emphasizing the relation between intrinsic and extrinsic variations of the …

[引用][C] Existence, Stability, and Dynamics of Ring and Near-Ring Solutions to the Gierer-Meinhardt Model with Saturation in the Semi-Strong Regime