English

Sullivan constructions for transitive Lie algebroids - smooth case

Algebraic Topology 2017-09-25 v1

Abstract

Let MM be a smooth manifold, smoothly triangulated by a simplicial complex KK, and \cA\cA a transitive Lie algebroid on MM. The Lie algebroid restriction of \cA\cA to a simplex Δ\Delta of KK is denoted by \cAΔ!!\cA^{!!}_{\Delta}. A piecewise smooth form of degree pp on \cA\cA is a family ω=(ωΔ)ΔK\omega=(\omega_{\Delta})_{\Delta\in K} such that ωΔΩp(\cAΔ!!;Δ)\omega_{\Delta}\in \Omega^{p}(\cA^{!!}_{\Delta};\Delta) for each ΔK\Delta\in K, satisfying the compatibility condition concerning the restrictions of ωΔ\omega_{\Delta} to the faces of Δ\Delta, that is, if Δ\Delta' is a face of Δ\Delta, the restriction of the form ωΔ\omega_{\Delta} to the simplex Δ\Delta' coincides with the form ωΔ\omega_{\Delta'}. The set Ω(\cA;K)\Omega^{\ast}(\cA;K) of all piecewise smooth forms on \cA\cA is a cochain algebra. One has a natural morphism Ω(\cA;M)Ω(\cA;K)\Omega^{\ast}(\cA;M)\rightarrow \Omega^{\ast}(\cA;K) of cochain algebras given by restriction of a smooth form defined on \cA\cA to a smooth form defined on \cAΔ!!\cA^{!!}_{\Delta}, for all simplices Δ\Delta of KK. In this paper, we prove that, for triangulated compact manifolds, the cohomology of this construction is isomorphic to the Lie algebroid cohomology of \cA\cA, in which the isomorphism is induced by the restriction map.

Keywords

Cite

@article{arxiv.1709.07494,
  title  = {Sullivan constructions for transitive Lie algebroids - smooth case},
  author = {Aleksandr S. Mishchenko and Jose R. Oliveira},
  journal= {arXiv preprint arXiv:1709.07494},
  year   = {2017}
}

Comments

32 pages

R2 v1 2026-06-22T21:51:07.987Z