Poset Embeddings of Hilbert Functions

Details Poset Embeddings of Hilbert Functions Poset Embeddings of Hilbert Functions

2010-09-22

arxiv.org/abs/1009.4488v1

Mathematics

Commutative Algebra

9pp

Scientific paper

For a standard graded algebra $R$, we consider embeddings of the the poset of Hilbert functions of quotients of $R$ into the poset of ideals of $R$, as a way of classification of Hilbert functions. There are examples of rings for which such embeddings do not exist. We describe how the embedding can be lifted to certain ring extensions, which is then used in the case of polarization and distraction. A version of a theorem of Clements--Lindstr\"om is proved. We exhibit a condition on the embedding that ensures that the classification of Hilbert functions is obtained with images of lexicographic segment ideals.

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