Mathematics – Commutative Algebra
Scientific paper
2003-11-03
J. Pure Appl. Algebra 195, No. 1, 113-123 (2005)
Mathematics
Commutative Algebra
10 pages; revised version accepted for publication in JPAA
Scientific paper
Let S=K[x_1,...,x_n] be a polynomial ring and R=S/I be a graded K-algebra where I is a graded ideal in S. Herzog, Huneke and Srinivasan have conjectured that the multiplicity of R is bounded above by a function of the maximal shifts in the minimal graded free resolution of R over S. We prove the conjecture in the case that codim(R)=2 which generalizes results in of Herzog, Srinivasan and Gold. We also give a proof for the bound in the case in which I is componentwise linear. For example, stable and squarefree stable ideals belong to this class of ideals.
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