Exterior depth and exterior generic annihilator numbers

Details Exterior depth and exterior generic annihilator numbers Exterior depth and exterior generic annihilator numbers

2009-03-23

arxiv.org/abs/0903.3884v2

Mathematics

Commutative Algebra

22 pages; added proof of Thm. 4.6, extended Ex. 2.11,

Scientific paper

We study the exterior depth of an $E$-module and its exterior generic annihilator numbers. For the exterior depth of a squarefree $E$-module we show how it relates to the symmetric depth of the corresponding $S$-module and classify those simplicial complexes having a particular exterior depth in terms of their exterior shifting. We define exterior annihilator numbers analogously to the annihilator numbers over the polynomial ring introduced by Trung and Conca, Herzog and Hibi. In addition to a combinatorial interpretation of the annihilator numbers we show how they are related to the symmetric Betti numbers and the Cartan-Betti numbers, respectively. We finally conclude with an example which shows that neither the symmetric nor the exterior generic annihilator numbers are minimal among the annihilator numbers with respect to a sequence.

Affiliated with

Also associated with

No associations

Rating

Exterior depth and exterior generic annihilator numbers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Exterior depth and exterior generic annihilator numbers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exterior depth and exterior generic annihilator numbers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-347004