Computing the Chern–Schwartz–MacPherson class of complete simplical toric varieties

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  • Martin Helmer

Topological invariants such as characteristic classes are an important tool to aid in understanding and categorizing the structure and properties of algebraic varieties. In this note, we consider the problem of computing a particular characteristic class, the Chern–Schwartz–MacPherson class, of a complete simplicial toric variety X defined by a fan ∑ from the combinatorial data contained in the fan ∑. Specifically, we give an effective combinatorial algorithm to compute the Chern–Schwartz–MacPherson class of X, in the Chow ring (or rational Chow ring) of X. This method is formulated by combining, and when necessary modifying, several known results from the literature and is implemented in Macaulay2 for test purposes.

Original languageEnglish
Title of host publicationApplications of Computer Algebra : Kalamata, Greece, July 20–23 2015
Number of pages11
PublisherSpringer New York LLC
Publication date2017
Pages207-217
ISBN (Print)9783319569307
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event21st International Conference on Applications of Computer Algebra, ACA 2015 - Kalamata, Greece
Duration: 20 Jul 201523 Jul 2015

Conference

Conference21st International Conference on Applications of Computer Algebra, ACA 2015
LandGreece
ByKalamata
Periode20/07/201523/07/2015
SeriesSpringer Proceedings in Mathematics and Statistics
Volume198
ISSN2194-1009

    Research areas

  • Chern class, Chern–Schwartz–MacPherson class, Computational intersection theory, Computer algebra, Toric varieties

ID: 183131609