• Corpus ID: 234482261

Positive Ricci curvature through Cheeger deformations

@inproceedings{Cavenaghi2018PositiveRC,
  title={Positive Ricci curvature through Cheeger deformations},
  author={Leonardo Francisco Cavenaghi and Renato J.M. e Silva and Llohann D. Sperancca},
  year={2018}
}
. This paper is devoted to a deep analysis of the process known as Cheeger deformation, applied to manifolds with isometric group actions. Here, we provide new curvature estimates near singular orbits and present several applications. As the main result, we answer a question raised by a seminal result of Searle–Wilhelm about lifting positive Ricci curvature from the quotient of an isometric action. To answer this question, we develop techniques that can be used to provide a substantially… 
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