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Linking numbers of measured foliations | | D. Kotschick
; T. Vogel
; | | Date: |
19 Nov 2001 | | Journal: | Ergodic Theory Dynam. Systems 23 (2003), 541--558. DOI: 10.1017/S0143385702001219 | | Subject: | Geometric Topology; Dynamical Systems MSC-class: 57R30, 37C10, 37C40, 37C85 | math.GT math.DS | | Abstract: | We generalise the average asymptotic linking number of a pair of divergence-free vector fields on homology three-spheres by considering the linking of a divergence-free vector field on a manifold of arbitrary dimension with a codimension two foliation endowed with an invariant transverse measure. We prove that the average asymptotic linking number is given by an integral of Hopf type. Considering appropriate vector fields and measured foliations, we obtain an ergodic interpretation of the Godbillon-Vey invariant of a family of codimension one foliations discussed in math.GT/0111137. | | Source: | arXiv, math.GT/0111209 | | Services: | Forum | Review | PDF | Favorites | |
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