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math.DG2008★ 4 cited
On a length preserving curve flow
Li Ma, Anqiang Zhu
In this paper, we consider a new length preserving curve flow for convex curves in the plane. We show that the global flow exists, the area of the region bounded by the evolving cu…
math.DG2007★ 1 cited
Ricci Flow with hyperbolic warped product metrics
Li Ma, Xingwang Xu
In this short note, we show that the negative curvature is preserved in the deformation of hyperbolic warped product metrics under Ricci flow. It is also showed that the flow conve…