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arXiv · 2604.04793

An infinite series of Gorenstein local algebras failing the affine homogeneity property

Roman Avdeev·Yulia Zaitseva
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Abstract

We provide an infinite series of commutative finite-dimensional Gorenstein local algebras $A_n$ for $n \ge 2$. We give an elementary proof that the maximal ideal of every algebra $A_n$ possesses a one-dimensional subspace that is different from the socle and invariant under the automorphism group of $A_n$. The latter implies that the algebras $A_n$ fail the affine homogeneity property. We also discuss some consequences concerning additive actions on projective hypersurfaces, related to the generalized Hassett-Tschinkel correspondence for these algebras.

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Roman Avdeev, Yulia Zaitseva. 2026-04-06. An infinite series of Gorenstein local algebras failing the affine homogeneity property. https://arxiv.org/abs/2604.04793

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