Shrinking solitons上Ricci曲率的非负性
On the non-negativity of the Ricci curvature on shrinking solitons
DOI: 10.13471/j.cnki.acta.snus.2018.06.020
Keywords: 拼挤 Weyl 曲率,shrinking soliton,非负Ricci曲率,极值原理,
pinched Weyl curvature,shrinking soliton,non-negative Ricci curvature,maximum principle
Abstract:
曲率的非负性是刻画流形的一个关键条件。证明了具有拼挤Weyl曲率的闭shrinking solitons上Ricci曲率一定是非负的。如果进一步假设Ricci曲率是正的,那么soliton是平凡的,即是Einstein流形
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