The modular class of a Dirac map
arXiv:1601.06973 · doi:10.1016/j.geomphys.2016.01.007
Abstract
In this paper we study the modular classes of Dirac manifolds and of Dirac maps, and we discuss their basic properties. We apply these results to explain the relationship between the modular classes of the various structures involved in the reduction of a Poisson manifold under the action by of a Poisson Lie group.
Accepted for publication in J. Geometry and Physics