Four-dimensional pp-wave Lie groups and harmonic curvature
arXiv:2602.08650
Abstract
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.
arXiv:2602.08650
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.