English

Prescribing capacitary curvature measures on planar convex domains

Analysis of PDEs 2018-11-20 v1 Differential Geometry

Abstract

For p(1,2]p\in (1,2] and a bounded, convex, nonempty, open set ΩR2\Omega\subset\mathbb R^2 let μp(Ωˉ,)\mu_p(\bar{\Omega},\cdot) be the pp-capacitary curvature measure (generated by the closure Ωˉ\bar{\Omega} of Ω\Omega) on the unit circle S1\mathbb S^1. This paper shows that such a problem of prescribing μp\mu_p on a planar convex domain: "Given a finite, nonnegative, Borel measure μ\mu on S1\mathbb S^1, find a bounded, convex, nonempty, open set ΩR2\Omega\subset\mathbb R^2 such that dμp(Ωˉ,)=dμ()d\mu_p(\bar{\Omega},\cdot)=d\mu(\cdot)" is solvable if and only if μ\mu has centroid at the origin and its support supp(μ)\mathrm{supp}(\mu) does not comprise any pair of antipodal points. And, the solution is unique up to translation. Moreover, if dμp(Ωˉ,)=ψ()d()d\mu_p(\bar{\Omega},\cdot)=\psi(\cdot)\,d\ell(\cdot) with ψCk,α\psi\in C^{k,\alpha} and dd\ell being the standard arc-length element on S1\mathbb S^1, then Ω\partial\Omega is of Ck+2,αC^{k+2,\alpha}.

Keywords

Cite

@article{arxiv.1811.07702,
  title  = {Prescribing capacitary curvature measures on planar convex domains},
  author = {J. Xiao},
  journal= {arXiv preprint arXiv:1811.07702},
  year   = {2018}
}

Comments

15 pages