Galloway’s compactness theorem on Finsler manifolds

نویسنده

  • M. Anastasiei
چکیده

The compactness theorem of Galloway is a stronger version of the Bonnet-Myers theorem allowing the Ricci scalar to take also negative values from a set of real numbers which is bounded below. In this paper we allow any negative value for the Ricci scalar, and adding a condition on its average, we find again that the manifold is compact and provide an upper bound of its diameter. Also, with no condition on Ricci scalar itself, but with a condition on its average, we find again the compactness of the manifold. All considerations are done in the category of Finsler manifolds. M.S.C. 2010: 53C60.

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تاریخ انتشار 2015