# Gravitational Instantons and special geometry

#### Autoren: Steffen Aksteiner, Lars Andersson (2021)

In this paper we show that the Chen-Teo gravitational instanton [14], which provides a counterexample to the classical Euclidean Black Hole Uniqueness conjecture, is Hermitian and non-Kaehler. It follows that all known examples of gravitational instantons are Hermitian.

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