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关于一类Berwald的(α,β)-度量

On a Class of Berwald α,β-Metric
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摘要 研究了形如F=α+εβ+k(β2/α)(ε和k为非零常数)的(α,β)-度量,其中(α=a_(ij)(x)y^iy^j)^(1/2)为黎曼度量,β=bi(x)yi为流形上的1-形式。得到了这类Berwald度量的充要条件,并进一步研究了一些特别的曲率性质。 In this paper,we study(α,β)-metric F=α+εβ+k(β2/α)(ε and k are nonzero constants) on a manifold,where (α=aij(x)yiyj)1/2 denotes a Riemannian metric and β=bi(x)yi denotes a 1-form.We obtain sufficient and necessary conditions for such metric to be Berwald metric.Moreover,we study some special curvature properties.
出处 《重庆理工大学学报(自然科学)》 CAS 2012年第6期120-122,共3页 Journal of Chongqing University of Technology:Natural Science
基金 贵州省科学技术基金资助项目(黔科合体R字[2011]2006号)
关键词 芬斯勒度量 Β)-度量 S-曲率 Berwald度量 Finsler metric ( α,β) -metric S-curvature Berwald metric
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参考文献8

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二级参考文献8

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