Tightly closed ideals of small type

Vraciu, Adela

doi:10.1090/S0002-9939-03-07085-0

Tightly closed ideals of small type
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Proc. Amer. Math. Soc. 132 (2004), 341-346 Request permission

Abstract:

We study the smallest possible type of tightly closed ideals that are cofinal with the powers of the maximal ideal; this numerical invariant yields information about the tight closure of arbitrary ideals in the ring.

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