Lower bound for the minimum distance of complete intersections

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Let X=CI(d1,…,dn)⊆PnX=CI(d_1,\ldots,d_n)\subseteq\mathbb{P}^{n} be a complete intersection, with

2≤d1≤⋯≤dn.2\leq d_1\leq\cdots\leq d_n.

Complete-intersection distance conjecture. Then

d(X)≥(d1−1)d2d3⋯dn.d(X)\geq (d_1-1)d_2d_3\cdots d_n.

The conjecture asserts that the hypothesis in the preceding corollary—that one of the associated complete-intersection curves has no component contained in a hyperplane—can be dropped. It gives a uniform lower bound for the minimum distance invariant of complete intersections, but the source provides no resolution.

References

Primary source

Stefan O. Tohaneanu and Adam Van Tuyl, “Bounding invariants of fat points using a coding theory construction”, arXiv:1108.1359 (2012).

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