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Polarized rigid del pezzo surfaces in low codimension

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2 Scopus citations

Abstract

We provide explicit graded constructions of orbifold del Pezzo surfaces with rigid orbifold points of type as well-formed and quasismooth varieties embedded in some weighted projective space. In particular, we present a collection of 147 such surfaces such that their image under their anti-canonical embeddings can be described by using one of the following sets of equations: a single equation, two linearly independent equations, five maximal Pfaffians of 5x5 skew symmetric matrix, and nine 2x2 minors of size 3 square matrix. This is a complete classification of such surfaces under certain carefully chosen bounds on the weights of ambient weighted projective spaces and it is largely based on detailed computer-assisted searches by using the computer algebra system MAGMA.

Original languageEnglish
Article number1567
JournalMathematics
Volume8
Issue number9
DOIs
StatePublished - Sep 2020

Bibliographical note

Publisher Copyright:
© 2020 by the authors.

Keywords

  • Complete intersections
  • Graded ring constructions
  • Hypersurfaces
  • Orbifold del pezzo surfaces
  • Pfaffians

ASJC Scopus subject areas

  • General Mathematics

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