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A horizontal Chern-Gauss-Bonnet formula on totally geodesic foliations

2021/06/29 by Fabrice Baudoin, Baudoin, Fabrice, Erlend Grong +3
Mathematics · #Differential Geometry (math.DG) #FOS: Mathematics #Geometric Analysis and Curvature Flows #Geometry and complex manifolds #Homotopy and Cohomology in Algebraic Topology #Probability (math.PR)

paper · pdf · doi:10.48550/arxiv.2106.15558

openalex publication_date 2021/06/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Under suitable conditions, we show that the Euler characteristic of a foliated Riemannian manifold can be computed only from curvature invariants which are transverse to the leaves. Our proof uses the hypoelliptic sub-Laplacian on forms recently introduced by two of the authors.

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