4 papers
Transversely holomorphic flows and contact circles on spherical 3-manifolds
Hansjörg Geiges, Jesús Gonzalo
Motivated by the moduli theory of taut contact circles on spherical 3-manifolds, we relate taut contact circles to transversely holomorphic flows. We give an elementary survey of s…
A homogeneous Gibbons-Hawking ansatz and Blaschke products
Hansjörg Geiges, Jesús Gonzalo
A homogeneous Gibbons-Hawking ansatz is described, leading to 4-dimensional hyperkahler metrics with homotheties. In combination with Blaschke products on the unit disc in the comp…
On the topology of the space of contact structures on torus bundles
Hansjörg Geiges, Jesús Gonzalo
We prove the existence of essential loops in the space of contact structures on torus bundles over the circle.
Moduli of contact circles
Hansjörg Geiges, Jesús Gonzalo
We continue the study of linear families of contact forms on 3-manifolds begun in our paper `Contact geometry and complex surfaces'. The present paper introduces Teichmuller and mo…