Build. Blocks
Comb. Appl.
HCA Proving
Arrangements
Branches
Classify
Coding
Deformations
Equidim Part
Existence
Finite Groups
Flatness
Genus
Hilbert Series
Membership
Nonnormal Locus
Normalization
Primdec
Puiseux
Plane Curves
Saturation
Solving
Space Curves
Spectrum
Flattening Stratification
From the Fitting ideals of an A-module M, we obtain inclusions of subvarieties of Spec(A)


The flattening stratum of rank r of M is the locally closed set given by

We know that



Task: Compute the flattening stratification of a module M, that is the set of flattening strata of M. A SINGULAR Example.
Application to Singularities.

Sao Carlos, 08/02 http://www.singular.uni-kl.de