2 papers
math.DG2026
Existence of cohomogeneity one Einstein metrics
Hanci Chi
This paper derives a sufficient condition for the existence of cohomogeneity one Einstein metrics on double disk bundles of two summands type. The condition is an inequality that i…
math.DG2025
Non-existence of cohomogeneity one Einstein metrics of two summands
Hanci Chi
We prove the non-existence of cohomogeneity one Einstein metrics on a class of compact manifolds arising as double disk bundles, whose principal orbits split into two inequivalent…