Deformations and Hilbert’s fourth problem
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Abstract
In this paper a special class of Finsler metrics defined by a Riemannian metric and an 1-form is studied. The projectively flat metrics in dimension \(n\ge 3\) are classified by a new class of metric deformations in Riemann geometry. The results show that the projective flatness of such Finsler metrics always arises from that of some Riemannian metric.
Mathematics Subject Classification
53B40 53C60Notes
Acknowledgments
I’d like to thank my tutor Professor Xiaohuan Mo for the useful discussions on this topic when I studied in Peking University. I’d like to thank postgraduate student Xiaoyun Tang in Fudan University for helping me to build some fundamental formulas of \(\beta \)-deformations when she studied in South China Normal University. I should also thank the referees for careful reading and many useful comments.
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