本文主要研究了对偶平坦和共形平坦的(α,β)-度量.利用对偶平坦和共形平坦与其测地线的关系,得到了局部对偶平坦和共形平坦的Randers度量是Minkowskian度量的结论.进一步,推广到非Randers型的情形,我们证明了局部对偶平坦和共形平坦的非Randers型的(α,β)-度量在附加的条件下一定是Minkowskian度量.
In this paper, from the relation between the sprays of two dually flat and conformally flat(α, β)-metrics, we obtain that locally dually flat and conformally flat Randers metrics are Minkowskian. Further, we extend the result to the non-Randers type and show that the locally dually flat and conformally flat(α, β)-metrics of non-Randers type must be Minkowskian under an extra condition.