Notes on totally geodesic foliations of a complete semi-Riemannian manifold

Authors: AN SOOK SHIN, HYELIM HAN, HOBUM KIM

Abstract: In this paper, we prove that the orthogonal complement $\mathcal{F}^{\perp}$ of a totally geodesic foliation $\mathcal{F}$ on a complete semi-Riemannian manifold $(M,g)$ satisfying a certain inequality between mixed sectional curvatures and the integrability tensor of $\mathcal{F}^{\perp}$ is totally geodesic. We also obtain conditions for the existence of totally geodesic foliations on a complete semi-Riemannian manifold $(M,g)$ with bundle-like metric $g$.

Keywords: Complete semi-Riemannian manifold, totally geodesic foliation, mixed sectional curvature

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