Document Type

Article

Publication Date

2014

Subject: LCSH

Geometry

Disciplines

Mathematics

Abstract

For a Lagrangian submanifold M of S 6 with nearly Kaehler structure, we provide conditions for a canonically induced almost contact metric structure on M by a unit vector field, to be Sasakian. Assuming M contact metric, we show that it is Sasakian if and only if the second fundamental form annihilates the Reeb vector field ξ, furthermore, if the Sasakian submanifold M is parallel along ξ, then it is the totally geodesic 3-sphere. We conclude with a condition that reduces the normal canonical almost contact metric structure on M to Sasakian or cosymplectic structure.

Comments

This is the author's accepted version of the article published in Results in Mathematics. The final publication is available at Springer: http://dx.doi.org/10.1007/s00025-013-0335-5

DOI

10.1007/s00025-013-0335-5

Publisher Citation

Almost contact Lagrangian submanifolds of nearly Kaehler 6-sphere (with S. Deshmukh and F. Al-Solamy), Results in Mathematics 65 (2014), 143-153.

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