Cilt:70 Sayı:02 (2021)

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Cotton tensor on Sasakian 3-manifolds admitting eta-Ricci solitons
(Ankara Üniversitesi, 2021) Kar, Debabrata; Other; Other
The object of the present paper is to characterize Cotton tensor on a 3-dimensional Sasakian manifold admitting η -Ricci solitons. After introduction, we study 3-dimensional Sasakian manifolds and introduce a new notion, namely, Cotton pseudo-symmetric manifolds. Next we deal with the study Cotton tensor on a Sasakian 3-manifold admitting η -Ricci solitons. Among others we prove that such a manifold is a manifold of constant scalar curvature and Einstein manifold with some appropriate conditions. Also, we classify the nature of the soliton metric. Finally, we give an important remark.