Work

Characterizing ϕ (Ric)‐Vector Fields and Quasi‐Einstein Manifolds on Multiply Warped Product Manifolds

Year: 2025
Type: article
Abstract: We characterize multiply warped product manifolds with ϕ (Ric)‐vector fields. We give the necessary and sufficient conditions for the lift of a vector field on a factor manifold to be the ϕ (Ric)‐vector field. In terms of physical applications, the multiply generalized Robertson–Walker spacetime is considered. Moreover, we investigate the effect of the quasi‐Einstein condition on the factor manifolds of a multiply product. Additionally, it obtains conditions for a multiply warped product manifold satisfying the quasi‐Einstein condition to be a direct product manifold.
Language: English
Open Access status: gold
Estimated APC paid: $1,240
OpenAlex ID: W4408482017
FWCI: 0.891
Cites: 20
Cited by: 1
Related to: 10