Volume-minimizing foliations on spheres

Details Volume-minimizing foliations on spheres Volume-minimizing foliations on spheres

2004-02-18

arxiv.org/abs/math/0402294v1

Mathematics

Differential Geometry

12 pages, no figures

Scientific paper

The volume of a k-dimensional foliation $\mathcal{F}$ in a Riemannian manifold $M^{n}$ is defined as the mass of image of the Gauss map, which is a map from M to the Grassmann bundle of k-planes in the tangent bundle. Generalizing a construction by Gluck and Ziller, "singular" foliations by 3-spheres are constructed on round spheres $S^{4n+3}$, as well as a singular foliation by 7-spheres on $S^{15}$, which minimize volume within their respective relative homology classes. These singular examples provide lower bounds for volumes of regular 3-dimensional foliations of $S^{4n+3}$ and regular 7-dimensional foliations of $S^{15}$ .

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