2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78331First order invariants of generic immersions of manifolds of dimension nm-1 into manifolds of dimension n(m+1)-1, m,n>1 are constructed using the geometry of self-intersections. The range of one of these invariants is related to Bernoulli numbers. As by-products some geometrically defined invariants of regular homotopy are found.21 pages, 1 figureGeometric Topologytext