The vanishing WLP probability conjecture for random Artinian monomial algebras

Let SS be a polynomial ring in nn variables, let II(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 n3n\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:

limDP(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.

Sources & referencesView supporting material

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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