Year: 2026
Type: preprint
Abstract: Continuing our work in [Math. Ann. 392 (2025), 1503-1518], we construct new singular solutions to the complex Monge-Ampère equation with constant right-hand side in the Bedford-Taylor sense. Let $\mathbb D$ denote the open unit disk in $\mathbb C$. For $n\geq 2$, these solutions include: (i) a bounded solution on $\mathbb D^n$ that is discontinuous almost everywhere and nowhere classically differentiable; (ii) a continuous exhaustion of $\mathbb C^n$ that does not belong to $W^{2,1}_{\mathrm{loc}}(\mathbb C^n)$; (iii) a continuous solution on $\overline{\mathbb D^n}$ whose Laplacian has a singular part. We construct these solutions from singular harmonic functions using partial Legendre transforms and holomorphic pullbacks.
Source: arXiv (Cornell University)
Authors: Wang, Jiaxiang, Wang, Wenlong
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
Awards: G5512733676, G7645202582, G7990822112
OpenAlex ID: W7223082280