First neighbourhood of the diagonal, and geometric distributions

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/64244We describe the geometric notion of distribution in synthetic terms, utilizing the notion of "first neighbourhood of the diagonal" from algebraic geometry. We characterize involutive distributions in combinatorial terms.Differential Geometry51K10, 58A03, 58A30First neighbourhood of the diagonal, and geometric distributionstext