Published January 1, 1998 | Version v1
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Invariant solutions to complex Monge-Ampere equation and gravitational instantons

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Generalized gravitational instanton solutions to the self-dual Einstein field equations with one Killing vector are studied by using symmetry-group analysis. The starting point is an earlier classification of the subgroups of the symmetry group of the complex Monge-Ampere equation for the Kahler potential of the metric. Two of the four nonequivalent one-dimensional subgroups are used to obtain reductions to equations in three real dimensions. One of the reduced equations is linearized via a contact transformation. A Background transformation obtained for the other one relates the "heavenly equation" to another system of nonlinear equations.

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