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- W4298329016 abstract "We consider the geometry of second order linear operators acting on the commutative algebra of densities on a (super)manifold introduced in our previous work. In the conventional language, operators on the algebra of densities correspond to operator pencils. This algebra has a natural invariant scalar product. We consider self-adjoint operators on the algebra of densities and analyze the corresponding canonical operator pencils passing through a given operator on densities of a particular weight. There are singular values for the pencil parameters. This leads to an interesting geometrical picture. In particular we obtain operators that depend on equivalence classes of connections and we study a groupoid of connections such that the orbits of this groupoid are these equivalence classes. Based on this point of view we analyze two examples: the second order canonical operator on an odd symplectic supermanifold appearing in the Batalin-Vilkovisky geometry and the Sturm-Liouville operator on the line related with classical constructions of projective geometry. We also consider a canonical second order semidensity arising on odd symplectic supermanifolds, which has some resemblance with mean curvature in Riemannian geometry." @default.
- W4298329016 created "2022-10-02" @default.
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- W4298329016 date "2011-12-22" @default.
- W4298329016 modified "2023-09-27" @default.
- W4298329016 title "Second order operators on the algebra of densities and a groupoid of connections" @default.
- W4298329016 doi "https://doi.org/10.48550/arxiv.1112.5379" @default.
- W4298329016 hasPublicationYear "2011" @default.
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