English

The $F$-regularity of algebraic sets related to commutator matrices

Commutative Algebra 2024-12-13 v1 Algebraic Geometry

Abstract

We study the algebraic sets of pairs of matrices defined by the vanishing of the anti-diagonal as well as the cross-diagonal of their commutator matrix. We prove that, over a field of prime characterisitic, the coordinate ring of the latter is always FF-regular and, with exactly one exception, so is that of the former, thus proving a conjecture of Kadyrsizova and Yerlanov.

Keywords

Cite

@article{arxiv.2305.15487,
  title  = {The $F$-regularity of algebraic sets related to commutator matrices},
  author = {Trung Chau},
  journal= {arXiv preprint arXiv:2305.15487},
  year   = {2024}
}

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11 pages, comments welcome!!!!