Vol. 269, No. 1, 2014

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On the concircular curvature of a $(\kappa, \mu, \nu)$-manifold

Florence Gouli-Andreou and Evaggelia Moutafi

Vol. 269 (2014), No. 1, 113–132
Abstract

We study (κ,μ,ν)-contact metric 3-manifolds (a notion introduced by Koufogiorgos, Markellos and Papantoniou) that are Ricci flat, or are Einstein but not Sasakian, or satisfy Z = 0, where Z is the concircular curvature tensor, or satisfy Z(ξ,X) Z = 0, where ξ is the Reeb field, or satisfy Z(ξ,X) S = 0, where S is the Ricci tensor, or finally satisfy R(ξ,X) Z = 0, where R is the Riemannian curvature tensor.

Keywords
contact metric manifold, $(\kappa, \mu, \nu)$-contact metric manifolds, $\eta$-Einstein, Ricci flat, Sasakian manifold, concircular curvature tensor, pseudosymmetric manifold
Mathematical Subject Classification 2010
Primary: 53C15, 53C25, 53D10
Secondary: 53C35
Milestones
Received: 15 November 2012
Revised: 19 December 2012
Accepted: 2 January 2013
Published: 15 July 2014
Authors
Florence Gouli-Andreou
Department of Mathematics
Aristotle University of Thessaloniki
54124 Thessaloniki
Greece
Evaggelia Moutafi
57007 Adendron
Greece