Left Invariant Einstein–Randers Metrics on Compact Lie Groups
Canadian mathematical bulletin, Tome 55 (2012) no. 4, pp. 870-881

Voir la notice de l'article provenant de la source Cambridge University Press

In this paper we study left invariant Einstein–Randers metrics on compact Lie groups. First, we give a method to construct left invariant non-Riemannian Einstein–Randers metrics on a compact Lie group, using the Zermelo navigation data. Then we prove that this gives a complete classification of left invariant Einstein–Randers metrics on compact simple Lie groups with the underlying Riemannian metric naturally reductive. Further, we completely determine the identity component of the group of isometries for this type of metrics on simple groups. Finally, we study some geometric properties of such metrics. In particular, we give the formulae of geodesics and flag curvature of such metrics.
DOI : 10.4153/CMB-2011-145-6
Mots-clés : 17B20, 22E46, 53C12, Einstein–Randers metric, compact Lie groups, geodesic, flag curvature
Wang, Hui; Deng, Shaoqiang. Left Invariant Einstein–Randers Metrics on Compact Lie Groups. Canadian mathematical bulletin, Tome 55 (2012) no. 4, pp. 870-881. doi: 10.4153/CMB-2011-145-6
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[1] [1] Besse, A., Einstein Manifolds. Ergebnisse der Mathematik und ihrer Grenzgebiete 10. Springer-Verlag, Berlin, 1987. Google Scholar

[2] [2] Bao, D. and Robles, C., Ricci and flag curvatures in Finsler geometry. In: A Sampler of Riemann–Finsler Geometry. Math. Sci. Res. Inst. Publ. 50. Cambridge University Press, Cambridge, 2004, pp. 197–259. Google Scholar

[3] [3] Bao, D., Robles, C., and Shen, Z., Zermelo navigation on Riemannian manifolds. J. Differential Geom. 66(2004), no. 3, 377–435. Google Scholar

[4] [4] Bao, D. and Shen, Z., Finsler metrics of constant positive curvature on the Lie group S 3 . J. London Math. Soc. 66(2002), no. 2, 453–467. Google Scholar | DOI

[5] [5] Deng, S. and Hou, Z., The group of isometries of a Finsler space. Pacific J. Math. 207(2002), no. 1, 149–157. Google Scholar | DOI

[6] [6] Deng, S. and Hou, Z., Homogeneous Einstein–Randers spaces of negative Ricci curvature. C. R. Acad. Sci. Paris 347(2009), no. 19-20, 1169–1172. Google Scholar

[7] [7] D’Atri, J. E. and Ziller, W., Naturally reductive metrics and Einstein metrics on compact Lie groups. Mem. Amer. Math. Soc. 18(1979), no. 215. Google Scholar

[8] [8] Helgason, S., Differential geometry, Lie groups, and Symmetric spaces. Pure and Applied Mathematics 80. Academic press, New York, 1978. Google Scholar

[9] [9] Huang, L. and Mo, X., On curvature decreasing property of a class of navigation problems. Publ. Math. Debrecen 71(2007), no. 1-2, 141–163. Google Scholar

[10] [10] Latifi, D., Homogeneous geodesics in homogeneous Finsler spaces. J. Geom. Phys. 57(2007), no. 5, 1421–1433. Google Scholar | DOI

[11] [11] Milnor, J., Curvatures of left invariant metrics on Lie groups. Advances in Math. 21(1976), no. 3, 293–329. Google Scholar | DOI

[12] [12] Ochiai, T. and Takahashi, T., The group of isometries of a left invariant Riemannian metric on a Lie group. Math. Ann. 223(1976), no. 1, 91–96. Google Scholar | DOI

[13] [13] Robles, C., Einstein metrics of Randers type. Ph.D. dissertation, University of British Colombia, 2003. Google Scholar

[14] [14] Robles, C., Geodesics in Randers spaces of constant curvature. Trans. Amer. Math. Soc. 359(2007), no. 4, 1633–1651. Google Scholar | DOI

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