Length functions determined by killing powers of several ideals in a local ring
Fields, J. Bruce
2000
Abstract
Given a local ring R and n ideals whose sum is primary to the maximal ideal of R, one may define a function which takes an n-tuple of exponents to the length of the quotient of R by sum of the ideals raised to the respective exponents. This quotient can also be obtained by taking the tensor product of the quotients of R by the various powers of the ideals. This thesis studies these functions as well as the functions obtained by replacing the tensor product by a higher Tor. These functions are shown to have rational generating functions under certain conditions.Subjects
Commutative Algebra Rings Hilbert Functions Hilbert-Kunz Functions Intersection Multiplicities Quasipolynomial Functions
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