A minimum principle for potentials with application to Chebyshev constants

A. Reznikov, E. B. Saff, O. V. Vlasiuk

For "Riesz-like" kernels $K(x,y)=f(|x-y|)$ on $A\times A$, where $A$ is a compact $d$-regular set $A\subset {\mathbb{R}}^p$, we prove a minimum principle for potentials $U_K^μ=\int K…