Multiplicities and Reduction Numbers

Author： Vasconcelos> W.V.  

Publisher： Springer Publishing Company

ISSN： 0010-437X

Source： Compositio Mathematica, Vol.139, Iss.3, 2003-12, pp. : 361-379

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Abstract

Let (R, {\frak {m}}) be a Cohen–Macaulay local ring and let I be an ideal. There are at least five algebras built on I whose multiplicity data affect the reduction number R(I) of the ideal. We introduce techniques from the Rees algebra theory of modules to produce estimates for R(I), for classes of ideals of dimension one and two. Previous cases of such estimates were derived for ideals of dimension zero.

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