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On classification of toric singularities

Algebraic Geometry 2007-05-23 v1

Abstract

In 1988 S. Mori, D. Morrison, and I. Morrison gave a computer-based conjectural classification of four-dimensional cyclic quotient singularities of prime index. It was partially proven in 1990 by G. Sankaran. In 1991 Jim Lawrence basically proved this and much more, been unaware of algebro-geometric meaning of what he did. In this short note I just bring this all together to prove that all n-dimensional toric singularities with log-discrepancy greater than (or equal to) ϵ\epsilon form finitely many "series".

Cite

@article{arxiv.math/9804137,
  title  = {On classification of toric singularities},
  author = {Alexander Borisov},
  journal= {arXiv preprint arXiv:math/9804137},
  year   = {2007}
}

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5 pages