Articles

ON (α, β)-METRICS OF CONSTANT FLAG CURVATURE

  • Guangzu CHEN ,
  • Xinyue CHENG
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  • 1. School of Science, East China JiaoTong University, Nanchang 330013, China;
    2. School of Mathematical Sciences, Chongqing Normal University, Chongqing 401331, China

Received date: 2020-11-18

  Revised date: 2021-02-22

  Online published: 2022-04-22

Supported by

The second author is supported by the National Natural Science Foundation of China (11871126) and the Science Foundation of Chongqing Normal University (17XLB022).

Abstract

In this paper, we study the (α, β)-metrics of constant flag curvature. We characterize almost regular (α, β)-metrics of constant flag curvature under the condition that β is a homothetic 1-form with respect to α. Furthermore, we prove that if a regular (α, β)-metric is of constant flag curvature and β is a Killing 1-form with constant length, then it must be a Riemannian metric or locally Minkowskian.

Cite this article

Guangzu CHEN , Xinyue CHENG . ON (α, β)-METRICS OF CONSTANT FLAG CURVATURE[J]. Acta mathematica scientia, Series B, 2022 , 42(2) : 755 -768 . DOI: 10.1007/s10473-022-0220-y

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