Journal of Symplectic Geometry
- J. Symplectic Geom.
- Volume 12, Number 2 (2014), 379-426.
Open books for Boothby-Wang bundles, fibered Dehn twists and the mean Euler characteristic
We examine open books with powers of fibered Dehn twists as monodromy. The resulting contact manifolds can be thought of as Boothby-Wang orbibundles over symplectic orbifolds. Using the mean Euler characteristic of equivariant symplectic homology we can distinguish these contact manifolds and hence show that some fibered Dehn twists are not symplectically isotopic to the identity relative to the boundary. This complements results of Biran and Giroux.
J. Symplectic Geom., Volume 12, Number 2 (2014), 379-426.
First available in Project Euclid: 29 August 2014
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Chiang, River; Ding, Fan; van Koert, Otto. Open books for Boothby-Wang bundles, fibered Dehn twists and the mean Euler characteristic. J. Symplectic Geom. 12 (2014), no. 2, 379--426. https://projecteuclid.org/euclid.jsg/1409317934