Gravitational instantons of type and a generalization of the Gibbons-Hawking Ansatz
arXiv:1611.09939 · doi:10.1007/s00220-017-2852-7
Abstract
We describe a quaternionic-based Ansatz generalizing the Gibbons-Hawking Ansatz to a class of hyperkähler metrics with hidden symmetries. We then apply it to obtain explicit expressions for gravitational instanton metrics of type .
51 pages