2 research outputs found
Upper bounds for Extremal Betti Numbers of -Spread Strongly Stable Ideals
We study the extremal Betti numbers of the class of --spread strongly
stable ideals. More precisely, we determine the maximal number of admissible
extremal Betti numbers for such ideals, and thereby we generalize the known
results for
On the extremal Betti numbers of squarefree monomial ideals
Let be a field and be a polynomial ring over .
We discuss the behaviour of the extremal Betti numbers of the class of
squarefree strongly stable ideals. More precisely, we give a numerical
characterization of the possible extremal Betti numbers (values as well as
positions) of such a class of squarefree monomial ideals