Migliore–Miro-Roig conjecture on ghost terms in resolutions of generic forms

Let S=k[x1,,xn]S=k[x_1,\ldots,x_n], and let ISI\subset S be generated by d>nd>n generic forms of the same degree. A redundant term in a minimal free resolution means a free summand occurring in two different homological degrees with the same internal shift.

Migliore–Miro-Roig conjecture. The minimal free resolution of S/IS/I has no redundant term. Consequently, the minimal free resolution is the minimum one consistent with the Hilbert function.

The conjecture concerns whether generic equal-degree generators can produce ghost terms in their minimal resolutions. The source gives no resolution status.

Sources & referencesView supporting material

Primary source

Ralf Fröberg and Samuel Lundqvist, “Extremal Hilbert series”, arXiv:1711.01232 (2017).

Additional references

2 papers in this index state this conjecture (2001–2017). The statement above is taken from the most recent of them; the others are arXiv:math/0109179.

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