Homogeneous Einstein metrics and local maxima of the Hilbert action
arXiv:2111.07842 · doi:10.1016/j.geomphys.2022.104544
Abstract
In this short note, three infinite families of neutrally stable homogeneous Einstein metrics are ruled out as candidates for local maxima of the Hilbert action.
arXiv comment8 pages. Final version to appear in J. Geom. Physics