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Is there a characterisation of those commutative local not necessarily noetherian rings that satisfy Krull's intersection theorem ? How can the intersection theorem be phrased in terms the module category of the ring or its completion ?

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Wouldn't it just mean that $R\to \hat{R}$ is injective? –  Donu Arapura Sep 9 '11 at 16:17
Or the given ring $R$ is Hausdorff in the $M$-adic topology (where $M$ is its maximal ideal). –  Jesse Elliott Sep 9 '11 at 18:10
Someone should retag this, but I don't want to bump it to the top and it's not clear to me which tags are appropriate. –  David White Sep 9 '11 at 20:08

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