English

Veronese Avoiding Hypersurfaces

Algebraic Geometry 2026-05-05 v1 Commutative Algebra

Abstract

We introduce Veronese-Avoiding hypersurfaces, inspired by the theory of associated forms of Alper--Isaev. In the smooth case, we reinterpret their criterion via Macaulay inverse systems: the Veronese-Avoiding condition is equivalent to the non-degeneracy of the associated form. In the singular case, our main theorem shows that a reduced hypersurface with exactly nn isolated singular points is Veronese-Avoiding if and only if these points are ordinary nodes in general linear position; we also classify singular plane cubics and treat fewer than nn nodes via a natural rational map. We then study the parameter space, proving local closedness and identifying a distinguished irreducible nodal locus. Finally, we prove a Lefschetz-type consequence for the Milnor algebra in degree 11.

Keywords

Cite

@article{arxiv.2605.01541,
  title  = {Veronese Avoiding Hypersurfaces},
  author = {Giovanna Ilardi and Abbas Nasrollah Nejad and Saeed Tafazolian},
  journal= {arXiv preprint arXiv:2605.01541},
  year   = {2026}
}
R2 v1 2026-07-01T12:46:54.413Z