Four-dimensional pp-wave Lie groups and harmonic curvature
We determine all four-dimensional Lie groups which have harmonic curvature. As a consequence, a description of four-dimensional pp-wave Lie groups is obtained.
math.DG↗
arXiv subjects
Ramón Vázquez-Lorenzo
Publications and source records attributed to Ramón Vázquez-Lorenzo.
Bach-flat isotropic gradient Ricci solitons
We construct examples of Bach-flat gradient Ricci solitons which are neither half conformally flat nor conformally Einstein.
math.DG↗