English

Obstructions to embedding singular curves in toric varieties

Algebraic Geometry 2026-07-20 v1 Commutative Algebra

Abstract

For every integer d2d \geq 2, we show that there exists an irreducible, reduced curve which embeds in Pd\mathbb{P}^d but in no projective normal toric variety of dimension less than dd. In particular, there exist reduced irreducible curves that embed in Pd\mathbb{P}^d but do not embed in any weighted projective space of dimension less than dd.

Cite

@article{arxiv.2607.18475,
  title  = {Obstructions to embedding singular curves in toric varieties},
  author = {Maya Banks and Izzet Coskun and Kevin Tucker},
  journal= {arXiv preprint arXiv:2607.18475},
  year   = {2026}
}

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11 pages