11 citations · 15 across the 5 of their papers we have counts for
Showing 2019Show all
2 papers · 1 filter
math.DG2019
Geodesic completeness and the quasi-Einstein equation for locally homogeneous affine surfaces
Peter B. Gilkey, Xabier Valle-Regueiro
Let be a Type affine surface. We show that is linearly strongly projectively flat. We use the quasi-Einstein equation together with the co…
math.DG2019★ 11 cited
Isotropic quasi-Einstein manifolds
Miguel Brozos-Vázquez, Eduardo García-Río, Xabier Valle-Regueiro
We investigate the local structure of four-dimensional Lorentzian quasi-Einstein manifolds under conditions on the Weyl tensor. We show that if the Weyl tensor is harmonic and the…