The algebraic packing problem for squarefree monomial ideals

Let SS be a polynomial ring and let II be a squarefree monomial ideal. A minor of II is obtained by setting variables successively equal to 00 or 11 in its minimal monomial generators and taking the ideal generated by the resulting monomials. The ideal has the packing property when every minor satisfies the König property, equivalently when its height equals its monomial grade. Let I(n)I^{(n)} denote the nnth symbolic power.

Algebraic packing conjecture. One has

In=I(n)for all n1I^n=I^{(n)}\quad\text{for all }n\geq 1

if and only if II has the packing property.

This is presented as the commutative-algebra translation of the packing problem; the supplied text does not give a resolution.

Sources & referencesView supporting material

Primary source

Maria Vaz Pinto and Rafael H. Villarreal, “Graph rings and ideals: Wolmer Vasconcelos' contributions”, arXiv:2305.06270 (2025).

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