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 language | English |
|---|---|
| Article number | 1567 |
| Journal | Mathematics |
| Volume | 8 |
| Issue number | 9 |
| DOIs | |
| State | Published - 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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