The strong full Perazzo conjecture for strongly minimal Hilbert functions

Let mm and dd be the type and socle degree of a full Perazzo algebra, let r=r(m,d)r=r(m,d) be its codimension, and let HH be its Hilbert vector. For kd/2k\leq d/2, define

μk(r)=min{hkhk=dimAk for AAG(r,d)},δk(r)=rμk(r).\mu_k(r)=\min\{h_k\mid h_k=\dim A_k\text{ for }A\in\mathcal{AG}(r,d)\},\qquad \delta_k(r)=r-\mu_k(r).

Here AG(r,d)\mathcal{AG}(r,d) is the family of standard graded Artinian Gorenstein algebras of codimension rr and socle degree dd, ordered by comparison of their symmetric Hilbert vectors. The vector HH is strongly minimal if it is realized by an Artinian Gorenstein algebra, is minimal in AG(r,d)\mathcal{AG}(r,d), satisfies hk=μk(r)h_k=\mu_k(r) for every k{2,3,,d/2}k\in\{2,3,\ldots,\lfloor d/2\rfloor\}, and satisfies δk(r1)<δk(r)\delta_k(r-1)<\delta_k(r) for every such kk.

The strong full Perazzo conjecture. The Hilbert vector HH is strongly minimal in AG(r,d)\mathcal{AG}(r,d).

This is presented as a stronger conjecture than the full Perazzo conjecture, imposing degreewise minimality and strict growth conditions in addition to poset minimality. The supplied text gives no resolution.

Sources & referencesView supporting material

Primary source

Lenin Bezerra, Rodrigo Gondim, Giovanna Ilardi and Giuseppe Zappalà, “On minimal Gorenstein Hilbert function”, arXiv:2206.05572 (2024).

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