Year: 2026
Type: preprint
Abstract: We study degree $1$ minimisers $u: (Σ,g) \to S^2$ for a Baby-Skyrme model with a Sacks-Uhlenbeck regularisation term $E^α(u) = \frac{1}{2} \int_Σ (1+\vert \nabla u \vert^2)^{α+1} -1 dv_g$ and establish convergence of degree $1$ minimisers to a simple bubble tree as $α\to 0$. We also obtain a new no-neck result for the classical Sacks-Uhlenbeck energy $E^α$.
Source: arXiv (Cornell University)
Author: Woodward, Sebastian
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7224105805