Resumen de The hypercentral structure of the group of unitriangular automorphisms of a polynomial algebra

Yu V. Sosnovskii

• We describe the hypercentral structure of the group of unitriangular automorphisms of the polynomial algebra K[x 1, ¿, x n ] for n = 3 and an arbitrary field K. This group is sometimes called the Borel group. The description implies the nonlinearity for this group over any field.