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💡Toda fields of SO(3) hyper-Kähler metrics and free field realizations (I. Bakas, K. Sfetsos, (1996)): https://t.co/anG5XjhffX The Eguchi–Hanson, Taub–NUT and Atiyah–Hitchin metrics are the only complete non–singular SO(3)–invariant hyper–Kahler metrics…