锥奇点流形的Perelman熵
Perelman's Entropies for Manifolds with conical Singularities
摘要：
本文讨论了一类具有孤立锥奇点的流形上的Perelman λ-泛函、Perelman Ricci收缩熵和Ricci展开熵。在这样的流形上，我们的工作证明了一个保持孤立锥奇点的奇异Ricci de Turck流的存在。证明了奇异Ricci de Turck流的熵是单调的。我们利用这些熵表明，在奇异的设置，里奇孤子是梯度和稳定的或扩展的里奇孤子是爱因斯坦。
英文摘要：
In this paper we discuss Perelman's Lambda-functional, Perelman's Ricci shrinker entropy as well as the Ricci expander entropy on a class of manifolds with isolated conical singularities. On such manifolds, a singular Ricci de Turck flow preserving the isolated conical singularities exists by our previous work. We prove that the entropies are monotone along the singular Ricci de Turck flow. We employ these entropies to show that in the singular setting, Ricci solitons are gradient and that steady or expanding Ricci solitons are Einstein.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
