Maria Evelina Rossi: A constructive approach to d-dimensional Gorenstein k-algebras
Tid: Ti 2016-04-26 kl 13.00
Plats: Room 34, building 5, Kräftriket, Department of Mathematics, Stockholm University
Medverkande: Maria Evelina Rossi, Università degli Studi di Genova
Macaulay's Inverse System gives an effective method to construct Artinian Gorenstein k-algebras. To date a general structure for Gorenstein rings of any dimension (and codimension) is not understood. We extend Macaulay's correspondence characterizing the submodules of the polynomial ring in one-to-one correspondence with Gorenstein d-dimensional k-algebras. We discuss effective methods for constructing Gorenstein graded rings of given multiplicity and regularity. Several examples illustrating the results are given.
