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ON W4-BIRECURRENT MANIFOLDS
초록
In the present paper, we introduce a type of Riemannian manifolds (namely, W4-birecurrent manifold) and study the several properties of such a manifold on which some geometric conditions are imposed.
키워드
W4-birecurrent manifold; birecurrent manifold; associated tensor; scalar curvature; Einstein; concurrent vector field; parallel vector field