The vanishing WLP probability conjecture for random Artinian monomial algebras

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Let SS be a polynomial ring in nn variables, let I∼I(n,D,p)I\sim\mathcal{I}(n,D,p), and consider the random Artinian algebra

A=S/(I+(x1D,…,xnD)),A=S/\bigl(I+(x_1^D,\dots,x_n^D)\bigr),

where n≥3n\geq 3. Set p=1/D2p=1/D^2. The vanishing WLP probability conjecture. As DD grows, the probability that AA has the weak Lefschetz property tends to zero:

lim⁡D→∞P(A has the WLP)=0.\lim_{D\to\infty}\mathbb{P}(A\text{ has the WLP})=0.

The conjecture is motivated by simulations showing that failure of the weak Lefschetz property is particularly common at p=1/D2p=1/D^2. The paper provides experimental evidence but no proof of the stated asymptotic claim.

References

Primary source

Uwe Nagel and Sonja Petrović, “The Weak Lefschetz property and unimodality of Hilbert functions of random monomial algebras”, arXiv:2402.17618 (2024).

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