The Gibbons-Hawking ansatz in generalized K\"ahler geometry
Abstract
We derive a local ansatz for generalized K\"ahler surfaces with nondegenerate Poisson structure and a biholomorphic S1 action which generalizes the classic Gibbons-Hawking ansatz for invariant hyperK\"ahler manifolds, and allows for the choice of one arbitrary function. By imposing the generalized K\"ahler-Ricci soliton equation, or equivalently the equations of type IIB string theory, the construction becomes rigid, and we classify all complete solutions with the smallest possible symmetry group.
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