Decomposition and minimality of lagrangian submanifolds in nearly Kähler manifolds

authored by
Lars Schäfer, Knut Smoczyk
Abstract

We show that Lagrangian submanifolds in six-dimensional nearly Kähler (non-Kähler) manifolds and in twistor spaces Z4n+2 over quaternionic Kähler manifolds Q4n are minimal. Moreover, we prove that any Lagrangian submanifold L in a nearly Kähler manifold M splits into a product of two Lagrangian submanifolds for which one factor is Lagrangian in the strict nearly Kähler part of M and the other factor is Lagrangian in the Kähler part of M. Using this splitting theorem, we then describe Lagrangian submanifolds in nearly Kähler manifolds of dimensions six, eight, and ten.

Organisation(s)
Institute of Differential Geometry
Type
Article
Journal
Annals of Global Analysis and Geometry
Volume
37
Pages
221-240
No. of pages
20
ISSN
0232-704X
Publication date
01.03.2010
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Analysis, Political Science and International Relations, Geometry and Topology
Electronic version(s)
https://doi.org/10.1007/s10455-009-9181-9 (Access: Unknown)