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HyperKähler torsion structures invariant by nilpotent Lie groups. (English) Zbl 1001.53031


MSC:

53C26 Hyper-Kähler and quaternionic Kähler geometry, “special” geometry
83E50 Supergravity
83D05 Relativistic gravitational theories other than Einstein’s, including asymmetric field theories
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