Intersection-dimension conjecture ID-2

Let (A,n)(A,\mathfrak{n}) be a quasi-unmixed local ring with prime ideals PP and QQ such that P+Q=n\sqrt{P+Q}=\mathfrak{n}. ID-2 conjecture. If

e(A)<e(AP)+e(AQ)e(A)<e(A_P)+e(A_Q)

and both A/PA/P and A/QA/Q are analytically unramified, then

dim(A/P)+dim(A/Q)dim(A).\operatorname{dim}(A/P)+\operatorname{dim}(A/Q)\leq\operatorname{dim}(A).

This is presented as a conjectural generalization of Serre's Intersection Theorem. The supplied context gives a theorem under this same multiplicity inequality together with additional hypotheses, so it does not by itself establish the full conjecture in the stated generality.

Sources & referencesView supporting material

Primary source

Sean Sather-Wagstaff, “Intersections of symbolic powers of prime ideals”, arXiv:math/0104175 (2001).

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