English

Variety of apolar schemes to powers of quadrics

Algebraic Geometry 2024-09-23 v1 Commutative Algebra

Abstract

We study the variety VAPSG(q23,10)\rm{VAPS}_G(q_2^3, 10) (resp. VAPSG(q32,10)\rm{VAPS}_G(q_3^2, 10)), a Grassmannian compactification of the variety of finite schemes of length 1010 apolar to q23q_{2}^3 (resp. q32q_3^2), where {qn=0}Pn\{q_{n} = 0\}\subset \mathbb P^{n} is a smooth quadric hypersurface. In particular, we show that VAPSG(q23,10)\rm{VAPS_G}(q_2^3, 10) is the tangent developable of a rational normal curve, while VAPSG(q32,10)\rm{VAPS}_G(q_3^2, 10) is reducible with three singular 55-dimensional components.

Keywords

Cite

@article{arxiv.2409.13352,
  title  = {Variety of apolar schemes to powers of quadrics},
  author = {Grzegorz Kapustka and Michał Kapustka and Kristian Ranestad},
  journal= {arXiv preprint arXiv:2409.13352},
  year   = {2024}
}

Comments

53 pages, comments welcome