The Height of Choe's Higher-Dimensional Enneper Surface
Abstract
We prove that Choe's higher-dimensional Enneper hypersurfaces in ℝn+1, 3≤ n≤6, cannot be confined between two parallel hyperplanes, disproving his slab confinement conjecture. We further strengthen this conclusion by determining their precise height growth exponent. If H(R) denotes the maximal absolute height above the asymptotic hyperplane within the horizontal ball of radius R, then H(R)=Rα1+o(1) as R→∞, where α1=(√((n−2)2+4λ1(Ω))−(n−2))/2, Ω=Sn−1∖[0,∞)n, and λ1(Ω) is the first Dirichlet eigenvalue of the spherical Laplacian. In particular, 0<α1<1, so the height is unbounded but grows sublinearly. The proof combines the blow-down behavior of a fundamental piece of Choe's hypersurface with the rigidity of positive harmonic functions on cones. In dimension two, the formula gives 2/3, recovering the classical Enneper height-growth exponent.
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BibTeX
@misc{he2026height,
title = {{The Height of Choe's Higher-Dimensional Enneper Surface}},
author = {Yike He},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.14343},
eprint = {2610.14343},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.14343},
}
RIS
TY - UNPB
TI - The Height of Choe's Higher-Dimensional Enneper Surface
AU - Yike He
PY - 2026
DA - 2026/10/09
PB - arXiv
DO - 10.48550/arxiv.2610.14343
UR - https://arxiv.org/abs/2610.14343
AB - We prove that Choe's higher-dimensional Enneper hypersurfaces in ℝ^n+1, 3≤ n≤6, cannot be confined between two parallel hyperplanes, disproving his slab confinement conjecture. We further strengthen this conclusion by determining their precise height growth exponent. If H(R) denotes the maximal absolute height above the asymptotic hyperplane within the horizontal ball of radius R, then H(R)=R^α_1+o(1) as R→∞, where α_1=(√((n−2)^2+4λ_1(Ω))−(n−2))/2, Ω=S^n−1∖[0,∞)^n, and λ_1(Ω) is the first Dirichlet eigenvalue of the spherical Laplacian. In particular, 0<α_1<1, so the height is unbounded but grows sublinearly. The proof combines the blow-down behavior of a fundamental piece of Choe's hypersurface with the rigidity of positive harmonic functions on cones. In dimension two, the formula gives 2/3, recovering the classical Enneper height-growth exponent.
ER -