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Bach-flat Lie groups in dimension 4 |
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| Authors: | Elsa Abbena Sergio Garbiero Simon Salamon |
| Institution: | 1. Dipartimento di Matematica, Università di Torino, Via Carlo Alberto 10, 10123 Torino, Italy;2. Department of Mathematics, King?s College London, Strand, London WC2L 2RS, UK |
| Abstract: | We establish the existence of solvable Lie groups of dimension 4 and left-invariant Riemannian metrics with zero Bach tensor which are neither conformally Einstein nor half conformally flat. |
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