Riesz $s$-equilibrium measures on $d$-rectifiable sets as $s$ approaches $d$
Abstract
Description
Let $A$ be a compact set in ${\mathbb R}^p$ of Hausdorff dimension $d$. For $s\in(0,d)$, the Riesz $s$-equilibrium measure $μ^s$ is the unique Borel probability measure with support in $A$ that minimizes $$ I_s(μ):=\iint\frac{1}{|x-y|^s}dμ(y)dμ(x)$$ over all such probability measures. If $A$ is strongly $({\mathcal H}^d, d)$-rectifiable, then $μ^s$ converges in the weak-star topology to normalized $d$-dimensional Hausdorff measure restricted to $A$ as $s$ approaches $d$ from below.