PreprintarXiv licencearXiv
The stability conjecture for the Bernoulli problem in dimension four
Abstract
We prove that every global classical stable solution to the one-phase Bernoulli problem in ℝ4 is one-dimensional. In particular, if nonempty, its free boundary consists of one or two parallel hyperplanes. This settles the stability conjecture for the Bernoulli problem in dimension four. As consequences, we obtain universal local Hessian and free-boundary curvature estimates for classical stable solutions in ℝ4, as well as axial symmetry of global classical solutions with finite Morse index in ℝ4.
Related
- The Sphere Packing Problem in Dimension 4 and the Twenty-Four-Cell Conjecture
- On the Hodge conjecture for hyper-Kähler varieties of generalized Kummer type of dimension divisible by four
- Quillen's local parameter conjecture in dimension four
- Uniform Stability of Scott-Vogelius Elements on Three-Dimensional Freudenthal Meshes in Degrees Four and Five: Resolving the Farrell-Mitchell-Scott Conjecture
- Linear Stability of Double-Double Orbits in the Equal-Mass Four-Body Problem via Index Theory
BibTeX
@misc{fernandezreal2026stability,
title = {{The stability conjecture for the Bernoulli problem in dimension four}},
author = {Xavier Fernández-Real and Joaquim Serra},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.05669},
eprint = {2609.05669},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.05669},
}
RIS
TY - UNPB
TI - The stability conjecture for the Bernoulli problem in dimension four
AU - Xavier Fernández-Real
AU - Joaquim Serra
PY - 2026
DA - 2026/09/04
PB - arXiv
DO - 10.48550/arxiv.2609.05669
UR - https://arxiv.org/abs/2609.05669
AB - We prove that every global classical stable solution to the one-phase Bernoulli problem in ℝ^4 is one-dimensional. In particular, if nonempty, its free boundary consists of one or two parallel hyperplanes. This settles the stability conjecture for the Bernoulli problem in dimension four. As consequences, we obtain universal local Hessian and free-boundary curvature estimates for classical stable solutions in ℝ^4, as well as axial symmetry of global classical solutions with finite Morse index in ℝ^4.
ER -