Deformations of 2k-Einstein structures
arXiv:1002.4387 · doi:10.1016/j.geomphys.2009.12.017
Abstract
It is shown that the space of infinitesimal deformations of 2k-Einstein structures is finite dimensional at compact non-flat space forms. Moreover, spherical space forms are shown to be rigid in the sense that they are isolated in the corresponding moduli space.
12 pages. Manuscript accepted for publication on Journal of Geometry and Physics