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THE SMALL GROWTH INVARIANTS OF GOURSAT DISTRIBUTIONS
Journal article   Peer reviewed

THE SMALL GROWTH INVARIANTS OF GOURSAT DISTRIBUTIONS

Susan Jane Colley, Gary Kennedy and Corey Shanbrom
Journal of singularities, Vol.29, pp.123-148
01/01/2026

Abstract

Mathematics Physical Sciences Science & Technology
. This is the second of a pair of papers devoted to the local invariants of Goursat distributions. The study of these distributions naturally leads to a tower of spaces over an arbitrary surface, called the monster tower, and thence to connections with the topic of singularities of curves on surfaces. In the prior paper we studied those invariants of Goursat distributions akin to those of curves on surfaces, which we call structural invariants. In this paper we study invariants arising from the small growth sequence of a Goursat distribution, and relate them to the structural invariants.

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