<p>We present efficient classification algorithms for log del Pezzo surfaces with torus action of Picard number one and given Gorenstein index. Explicit results are obtained up to Gorenstein index 200.</p>

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Del Pezzo surfaces of Picard number one admitting a torus action

  • Daniel Hättig,
  • Beatrice Hafner,
  • Jürgen Hausen,
  • Justus Springer

摘要

We present efficient classification algorithms for log del Pezzo surfaces with torus action of Picard number one and given Gorenstein index. Explicit results are obtained up to Gorenstein index 200.