A note on pullbacks and blowups of Lie algebroids, singular foliations, and Dirac structures

Abstract

Lie algebroids, singular foliations, and Dirac structures are closely related objects. We examine the relation between their pullbacks under maps satisfying a constant rank or transversality assumption. A special case is given by blowdown maps. In that case, we also establish the relation between the blowup of a Lie algebroid and its singular foliation.

arXiv commentv3: Lemma 3.2, which had no consequences for the rest of the paper, was removed because incorrect. 11 pages