English

On the variational properties of the prescribed Ricci curvature functional

Differential Geometry 2023-09-18 v2

Abstract

We study the prescribed Ricci curvature problem for homogeneous metrics. Given a (0,2)-tensor field TT, this problem asks for solutions to the equation Ric(g)=cT\mathrm{Ric}(g)=cT for some constant cc. Our approach is based on examining global properties of the scalar curvature functional whose critical points are solutions to this equation. We produce conditions for a general homogeneous space under which it has a global maximum. Finally, we study the behavior of the functional in specific examples to illustrate our result.

Keywords

Cite

@article{arxiv.2110.14129,
  title  = {On the variational properties of the prescribed Ricci curvature functional},
  author = {Artem Pulemotov and Wolfgang Ziller},
  journal= {arXiv preprint arXiv:2110.14129},
  year   = {2023}
}

Comments

24 pages, 3 figures. Version 2: A portion of this paper has been generalised and moved to the new paper "Palais-Smale sequences for the prescribed Ricci curvature functional"; the current version deals with the question of when the prescribed Ricci curvature functional assumes its maximum