The Gibbons-Hawking ansatz in generalized Kähler geometry

preprint2022arXivOpen access

Abstract

We derive a local ansatz for generalized Kähler surfaces with nondegenerate Poisson structure and a biholomorphic S1S^1 action which generalizes the classic Gibbons-Hawking ansatz for invariant hyperKähler manifolds, and allows for the choice of one arbitrary function. By imposing the generalized Kähler-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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