B. Malgrange, GENERIC INVOLUTIVENESS OF ANALYTIC DIFFER ENTIAL-SYSTEMS, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 326(7), 1998, pp. 863-866
One proves the following result, conjectured by E. Cartan: after a fin
ite number of prolongations, an analytic differential system becomes i
nvolutive at the generic point. (C) Academie des Sciences/Elsevier, Pa
ris.