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On Curvature and Torsion in Courant Algebroids

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arxiv 1910.11273 v2 pith:2O7ERNLW submitted 2019-10-23 math.DG hep-thmath-phmath.MP

classification math.DGhep-thmath-phmath.MP
keywords curvaturecourantgradedtorsionalgebroidconnectiongeometricaffine
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We study the graded geometric point of view of curvature and torsion of Q-manifolds (differential graded manifolds). In particular, we get a natural graded geometric definition of Courant algebroid curvature and torsion, which correctly restrict to Dirac structures. Depending on an auxiliary affine connection K, we introduce the K-curvature and K-torsion of a Courant algebroid connection. These are conventional tensors on the body. Finally, we compute their Ricci and scalar curvature.

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  1. Gauged Extended Field Theory and Generalised Cartan Geometry

    hep-th 2025-09 conditional novelty 6.0 of 10

    A systematic Cartan-geometric construction of linearised torsion and curvature hierarchies for generalised geometries with global duality group G and local gauge group H, realised via brane current algebras.

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