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doi: 10.2139/ssrn.5192972
We develop the concept of a homogeneity supermanifold, which is more general than most of the approaches to graded manifolds present in the literature. Instead of doing it via ringed spaces and sheaves of graded algebras, we prefer a purely differential geometric language and view gradings as provided by an additional structure on supermanifolds, namely the weight vector field. This gives us a privileged atlas with homogeneous local coordinates. The fact that the transition maps `preserve weights' is then automatic, but weights of homogeneous coordinates may vary from one chart to the other. Moreover, such local homogeneous coordinates may have arbitrary real weights, not only integers. We study homogeneity submanifolds, homogeneity Lie supergroups, tangent and cotangent lifts of homogeneity structures, homogeneous distributions and codistributions, and other related concepts. The main achievements in this framework are proofs of the homogeneous Poincar\'e Lemma and a homogeneous analog of the Darboux Theorem.
Comment: 39 pages
Mathematics - Differential Geometry, Mathematics - Symplectic Geometry, 53D05, 53D10, 53B99, 57N16, 58A50 (Primary), 14A22, 17A30, 58A05, 58A50 (Secondary), Mathematical Physics
Mathematics - Differential Geometry, Mathematics - Symplectic Geometry, 53D05, 53D10, 53B99, 57N16, 58A50 (Primary), 14A22, 17A30, 58A05, 58A50 (Secondary), Mathematical Physics
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