On the tangent groupoid of a filtered manifold

Abstract

We give an intrinsic (coordinate-free) construction of the tangent groupoid of a filtered manifold.

11pages. This paper was formerly part of the preprint arXiv:1511.01041 (version 3). This version involves a significant reorganization. It also adds a section on the adiabatic groupoid of a Lie groupoid with filtered Lie algebroid

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