GENTLE

Category: papers

  • Symmetric Cartan calculus, the Patterson-Walker metric and symmetric cohomology

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    Paper by F. Moučka and R. Rubio. Abstract: We develop symmetric Cartan calculus, an analogue of classical Cartan calculus for symmetric differential forms. We first show that the analogue of the exterior derivative, the symmetric derivative, is not unique and its different choices are parametrized by torsion-free affine connections. We use a choice of symmetric…

  • On the Equivalence of Generalized Ricci Curvatures

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    Paper by G. Cavalcanti, J. Pedregal and R. Rubio. Abstract: We prove the equivalence between the several notions of generalized Ricci curvature found in the literature. As an application, we characterize when the total generalized Ricci tensor is symmetric. Find it on the arXiv (2406.06695). To appear in Proc. Amer. Math. Soc.

  • New geometric structures on 3-manifolds: surgery and generalized geometry

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    in ,

    Paper by J. Porti and R. Rubio. Abstract: Cosymplectic and normal almost contact structures are analogues of symplectic and complex structures that can be defined on 3-manifolds. Their existence imposes strong topological constraints. Generalized geometry offers a natural common generalization of these two structures: B3-generalized complex structures. We prove that any closed orientable 3-manifold admits…