English

On the dimension of the strongly robust complex for configurations in general position

Commutative Algebra 2025-10-07 v1 Algebraic Geometry Combinatorics

Abstract

Strongly robust toric ideals are the toric ideals for which the set of indispensable binomials is the Graver basis. The strongly robust simplicial complex ΔT\Delta _T of a simple toric ideal ITI_T determines the strongly robust property for all toric ideals that have ITI_T as their bouquet ideal. We prove that dimΔT<rank(T)\text{dim} \Delta_T<\text{rank}(T) for configurations in general position, partially answering a question posed by Sullivant.

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Cite

@article{arxiv.2510.04730,
  title  = {On the dimension of the strongly robust complex for configurations in general position},
  author = {Dimitra Kosta and Apostolos Thoma and Marius Vladoiu},
  journal= {arXiv preprint arXiv:2510.04730},
  year   = {2025}
}

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11 pages