Three-dimensional Ricci solitons which project to surfaces
arXiv:math/0510313
Abstract
We study -dimensional Ricci solitons which project via a semi-conformal mapping to a surface. We reformulate the equations in terms of parameters of the map; this enables us to give an ansatz for constructing solitons in terms of data on the surface. A complete description of the soliton structures on all the -dimensional geometries is given, in particular, non-gradient solitons are found on Nil and Sol.
28 pages