2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76813We show that the maximal prolongation of a certain algebra associated with a non-degenerate Hermitian form on ${\Bbb C}^n\times{\Bbb C}^n$ with values in ${\Bbb R}^k$ is canonically isomorphic to the Lie algebra of infinitesimal holomorphic automorphisms of the corresponding quadric in ${\Bbb C}^{n+k}$. This fact creates a link between different approaches to the equivalence problem for Levi-nondegenerate strongly uniform CR-manifolds.16 pages, see also http://wwwmaths.anu.edu.au/research.reports/98mrr.htmlComplex Variables32C16text