112 citations · 483 across the 59 of their papers we have counts for
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math.DG2008
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…
math.GT2008★ 35 cited
Handle moves in contact surgery diagrams
Fan Ding, Hansjörg Geiges
We describe various handle moves in contact surgery diagrams, notably contact analogues of the Kirby moves. As an application of these handle moves, we discuss the respective class…