74 citations · 267 across the 68 of their papers we have counts for
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math.AP2012
An Upper Bound for Hessian Matrices of Positive Solutions of Heat Equations
Qing Han, Qi S Zhang
We prove global and local upper bounds for the Hessian of log positive solutions of the heat equation on a Riemannian manifold. The metric is either fixed or evolves under the Ricc…
math.DG2012
No breathers theorem for some noncompact Ricci flows
Qi S. Zhang
Under suitable conditions near infinity and assuming boundedness of curvature tensor, we prove a no breathers theorem in the spirit of Ivey-Perelman for some noncompact Ricci flows…
math.DG2012★ 1 cited
Isoperimetric inequality under Kähler Ricci flow
Gang Tian, Qi S. Zhang
Let $({\M}, g(t))$ be a Kähler Ricci flow with positive first Chern class. We prove a uniform isoperimetric inequality for all time. In the process we also prove a Cheng-Yau type l…