Schälbare Cohen-Macauley-Komplexe und ihre Parametrisierung.
Semicontinuity for the Local Hilbert Function.
Some algebraic properties of hypergraphs
We consider Stanley-Reisner rings where is the edge ideal associated to some particular classes of hypergraphs. For instance, we consider hypergraphs that are natural generalizations of graphs that are lines and cycles, and for these we compute the Betti numbers. We also generalize some known results about chordal graphs and study a weak form of shellability.
Some Criteria for Buchsbaum Modules.
Some Homological properties of commutative semitrivial ring extensions.
Some remarks on generalized Cohen-Macaulay rings.
Stability of Two-Dimensional Local Rings. I.
Standard systems of parameters and their blowing-up rings.
Stanley decompositions and polarization
We define nice partitions of the multicomplex associated with a Stanley ideal. As the main result we show that if the monomial ideal is a CM Stanley ideal, then is a Stanley ideal as well, where is the polarization of .
Stanley depth of monomial ideals with small number of generators
For a monomial ideal I ⊂ S = K[x 1...,x n], we show that sdepth(S/I) ≥ n − g(I), where g(I) is the number of the minimal monomial generators of I. If I =νI′, where ν ∈ S is a monomial, then we see that sdepth(S/I) = sdepth(S/I′). We prove that if I is a monomial ideal I ⊂ S minimally generated by three monomials, then I and S/I satisfy the Stanley conjecture. Given a saturated monomial ideal I ⊂ K[x 1,x 2,x 3] we show that sdepth(I) = 2. As a consequence, sdepth(I) ≥ sdepth(K[x 1,x 2,x 3]//I) +1...
Successioni di Gorenstein e proprietà
Sur les invariants des pinceaux de formes quintiques binaires
On décrit l’algèbre des invariants de l’action naturelle du groupe sur les pinceaux de formes quintiques binaires.
Surjective-Buchsbaum modules over Cohen-Macauly local rings.
Symbolic powers, Serre Conditions and Cohen-Macaulay Rees Algebras.