a1 Department of Mathematics, Kyungpook National University, Taegu, 702-701, Korea (email: email@example.com)
We find necessary and sufficient conditions for a Legendre curve in a Sasakian manifold to have: (i) a pseudo-Hermitian parallel mean curvature vector field; (ii) a pseudo-Hermitian proper mean curvature vector field in the normal bundle.
(Received April 28 2009)
2000 Mathematics subject classification
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This work was supported by a National Research Foundation of Korea Grant funded by the Korean Government [NRF-2009-351-C00008].