Electrostatic skeletons and condition of strict descent

Linhang Huang

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arXiv · 2604.03861

Electrostatic skeletons and condition of strict descent

Linhang Huang

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Abstract

Given a precompact domain $\Omega \subseteq\mathbb{R}^2$, the electrostatic skeleton of $\Omega$ is defined as a positive measure inside $\Omega$, supported on a set with no simple loops, which generates $\partial \Omega$ as an equipotential curve. Eremenko conjectured that every convex polygon admits a unique electrostatic skeleton. This conjecture has since been proven for triangles and regular polygons. In this paper, we will prove the conjecture for quadrilaterals with a line of symmetry using arguments from conformal geometry. We will also discuss a natural condition that implies the existence of electrostatic skeletons.

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BibTeX RIS

Linhang Huang. 2026-04-04. Electrostatic skeletons and condition of strict descent. https://arxiv.org/abs/2604.03861

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