Details

Autor(en) / Beteiligte

• Nødland, Bernt Ivar Utstøl

Titel

Local Euler obstructions of toric varieties

Ist Teil von

• Journal of pure and applied algebra, 2018-03, Vol.222 (3), p.508-533

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We use Matsui and Takeuchi's formula for toric A-discriminants to give algorithms for computing local Euler obstructions and dual degrees of toric surfaces and 3-folds. In particular, we consider weighted projective spaces. As an application we give counterexamples to a conjecture by Matsui and Takeuchi. As another application we recover the well-known fact that the only defective normal toric surfaces are cones.