Special Lagrangian 4-folds with $SO(2)⋊S_3$-Symmetry in Complex Space Forms

Abstract

In this article we obtain a classification of special Lagrangian submanifolds in complex space forms subject to an $SO(2)⋊S_3$-symmetry on the second fundamental form. The algebraic structure of this form has been obtained by Marianty Ionel. However, the classification of special Lagrangian submanifolds in ${\mathbb{C}}^4$ having this $SO(2)⋊S_3$ symmetry in that paper is incomplete. In the present paper we give a complete classification of such submanifolds, and extend the classification to special Lagrangian submanifolds of arbitrary complex space forms with $SO(2)⋊S_3$-symmetry.