Robert L. Bryant

collaborators

2 papers

math.DG2025

Curvature homogeneous hypersurfaces in space forms

Robert Bryant, Luis Florit, Wolfgang Ziller

We classify curvature homogeneous hypersurfaces in S^4 and H^4. In higher dimesnsion one only has the FKM examples and an isolate one by Tsukada of a hypersurface in H^5. Besides s…

math.DG2024

Hessianizability of surface metrics

Robert L. Bryant

A symmetric quadratic form $g$ on a surface~ $M$ is said to be locally Hessianizable if each $p \in M$ has an open neighborhood~ $U$ on which there exists a local coordinate chart $(x…