Dual Forms on Supermanifolds and Cartan Calculus

Details Dual Forms on Supermanifolds and Cartan Calculus Dual Forms on Supermanifolds and Cartan Calculus

1999-12-22

arxiv.org/abs/math/9912192v1

Mathematics

Differential Geometry

21 pages, LaTeX, uses package diagrams.sty (= diagrams.tex) by Paul Taylor, available at ftp://ctan.tug.org/tex-archive/macr

Scientific paper

The complex of "stable forms" on supermanifolds is studied. Stable forms on $M$ are represented by certain Lagrangians of "copaths" (formal systems of equations, which may or may not specify actual surfaces) on $M\times\mathbb R^D$. Changes of $D$ give rise to stability isomorphisms. The Cartan--de Rham complex made of stable forms extends both in positive and negative degree and its positive half is isomorphic to the complex of forms defined as Lagrangians of paths. Considering the negative half is necessary, in particular, for homotopy invariance. We introduce analogs of exterior multiplication by covectors and of contraction with vectors. We find (anti)commutation relations for them. An analog of Cartan's homotopy identity is proved. Before stabilization it contains some "stability operator" $\sigma$.

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