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Shrinking Ricci solitons with positive isotropic curvature

Differential Geometry 2019-05-30 v2

Abstract

We show that in dimensions n12n \geq 12, a non-flat complete gradient shrinking solitons with uniformly positive isotropic curvature (PIC) must be a quotient of either the round sphere SnS^n or the cylinder Sn1×RS^{n-1} \times \mathbb{R}. We also observe that in dimensions n5n \geq 5, a complete gradient shrinking soliton that is strictly PIC and weakly PIC2 must be a quotient of either the round sphere SnS^n or the cylinder Sn1×RS^{n-1} \times \mathbb{R}.

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Cite

@article{arxiv.1905.10305,
  title  = {Shrinking Ricci solitons with positive isotropic curvature},
  author = {Keaton Naff},
  journal= {arXiv preprint arXiv:1905.10305},
  year   = {2019}
}

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