English

Collapsed ancient solutions of the Ricci flow on compact homogeneous spaces

Differential Geometry 2022-08-31 v2

Abstract

We prove a general existence theorem for collapsed ancient solutions to the Ricci flow on compact homogeneous spaces and we show that they converge in the Gromov-Hausdorff topology, under a suitable rescaling, to an Einstein metric on the base of a torus fibration. This construction generalizes all previous known examples in the literature.

Keywords

Cite

@article{arxiv.2110.05818,
  title  = {Collapsed ancient solutions of the Ricci flow on compact homogeneous spaces},
  author = {Francesco Pediconi and Sammy Sbiti},
  journal= {arXiv preprint arXiv:2110.05818},
  year   = {2022}
}

Comments

15 pages; Theorem A has been improved by removing the G-non-degeneracy hypothesis; Comments are welcome