2023/06/26 by Aksteiner, Steffen, Andersson, Lars, Dahl, Mattias +2 · 3 citations
#53C25 #Differential Geometry (math.DG) #FOS: Mathematics #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc)
paper · doi:10.48550/arxiv.2306.14567
Uniqueness results for asymptotically locally flat and asymptotically flat S1-symmetric gravitational instantons are proved using a divergence identity of the type used in uniqueness proofs for static black holes, combined with results derived from the G-signature theorem. Our results include a proof of the S1-symmetric version of the Euclidean Black Hole Uniqueness conjecture, a uniqueness result for the Taub-bolt family of instantons, as well as a proof that an ALF S1-symmetric instanton with the topology of the Chen-Teo family of instantons is Hermitian.