Radial Amplitude Equations for Fully Localized Planar Patterns

DJ Hill, DJ Lloyd - SIAM Journal on Applied Mathematics, 2024 - SIAM
Isolated patches of spatially oscillating pattern have been found to emerge near a pattern-
forming instability in a wide variety of experiments and mathematical models. However …

The role of spatial dimension in the emergence of localized radial patterns from a Turing instability

DJ Hill - Proceedings A, 2024 - royalsocietypublishing.org
The emergence of localized radial patterns from a Turing instability has been well studied in
two-and three-dimensional settings and predicted for higher spatial dimensions. We prove …

Predicting the emergence of localised dihedral patterns in models for dryland vegetation

DJ Hill - Journal of Nonlinear Science, 2024 - Springer
Localised patterns are often observed in models for dryland vegetation, both as peaks of
vegetation in a desert state and as gaps within a vegetated state, known as 'fairy circles' …

The 2D Gray-Scott system of equations: constructive proofs of existence of localized stationary patterns

M Cadiot, D Blanco - arXiv preprint arXiv:2404.08529, 2024 - arxiv.org
In this article, we develop a method to perform constructive proofs of existence of smooth
planar localized patterns in the Gray-Scott model. Specifically, we construct a natural Hilbert …

[HTML][HTML] Approximate localised multi-dimensional patterns

D Hill, D Lioyd - SIAM News, 2024 - siam.org
Spatially localized patterns offer fascinating insights into the emergence of organized
behaviors, from weather fronts and desert vegetation to stop-and-go traffic waves and the …

On function spaces for radial functions

MD Groves, DJ Hill - arXiv preprint arXiv:2403.09372, 2024 - arxiv.org
This paper is concerned with complex Banach-space valued functions of the form $$\hat {f}
_k (r\cos\theta, r\sin\theta, z)=\mathrm {e}^{\mathrm {i} k\theta} f_k (r, z),\qquad r\in …