Two classes of pseudo-Ricci-symmetric contact metric three manifolds


Abstract in English

In this article we study two classes of contact metric three manifolds, where first we investigate the necessary and sufficient condition for the contact metric three manifold to be partially pseudo- Ricci-symmmetric manifold of constant type. We find also two relations that the 3-dimensional (k,m,n ) _ contact metric manifold has to satisfy to be partially pseudo- Ricci-symmetric manifold of constant type.

References used

Binh, T. Q, De, U. C., Tamassy, L. (2002). On partially pseudo symmetric K_contact Riemannian manifold. ActaMathematica academiae paedgogicea Nyiregyhaziensis, 18, 19-25
Blair, D. E. (2002). Riemannian Geometry of Contact and Symplectic Manifolds. Progress in Mathematics. vol 203, Birkhauser, Boston. Basel .Berlin
Calvaruso, G.; Perrone, D. (2002). Semi-Symmetric contact metric Threemanifolds. Yokohama Mathematical J.vol. 49, 151-161

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