相关论文: Eigen-value monotonicity for the Ricci-Hamilton fl…

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In this paper, we study monotonicity of eigenvalues of Laplacian-type operator $-\Delta+cR$, where $c$ is a constant, along the Ricci-Bourguignon flow. For $c\neq0$, We derive monotonicity of the lowest eigenvalue of Laplacian-type operator…

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In this paper, we consider two different monotone quantities defined for the Ricci flow and show that their asymptotic limits coincide for any ancient solutions. One of the quantities we consider here is Perelman's reduced volume, while the…

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This paper has been withdrawn. The results are now part of math.GR/9804072.

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This paper has been withdrawn by the authors due to the fact that the conjecture has indeed already long been established.

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This paper has been withdrawn by authors for significant modification.

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