On quasi-Einstein sequential warped product manifolds

JOURNAL OF GEOMETRY AND PHYSICS

卷:165

Article

Karaca, Fatma¹  Ozgur, Cihan² 

[1] Beykent Univ, Dept Math, TR-34550 Istanbul, Turkey

[2] Izmir Democracy Univ, Dept Math, TR-35140 Izmir, Turkey

关键词: Warped product;    Sequential warped product;    Quasi-Einstein manifold;    Einstein manifold;   

DOI  :  10.1016/j.geomphys.2021.104248

来源: Elsevier

【 摘 要 】

We find the necessary and sufficient conditions for a sequential warped product manifold to be a quasi-Einstein manifold. We also investigate the necessary conditions for a sequential standard static space-time and a sequential generalized Robertson-Walker space-time to be a manifold of quasi-constant curvature. (C) 2021 Elsevier B.V. All rights reserved.

【 授权许可】

Free