A direct algorithm to compute the topological Euler characteristic and Chern–Schwartz–MacPherson class of projective complete intersection varieties

Research output: Contribution to journalJournal articleResearchpeer-review

  • Martin Helmer

Let V be a possibly singular scheme-theoretic complete intersection subscheme of Pn over an algebraically closed field of characteristic zero. Using a recent result of Fullwood (“On Milnor classes via invariants of singular subschemes”, Journal of Singularities) we develop an algorithm to compute the Chern–Schwartz–MacPherson class and Euler characteristic of V. This algorithm complements existing algorithms by providing performance improvements in the computation of the Chern–Schwartz–MacPherson class and Euler characteristic for certain types of complete intersection subschemes of Pn.

Original languageEnglish
JournalTheoretical Computer Science
Volume681
Pages (from-to)54-74
Number of pages21
ISSN0304-3975
DOIs
Publication statusPublished - 12 Jun 2017
Externally publishedYes

    Research areas

  • Chern class, Chern–Schwartz–MacPherson class, Computational intersection theory, Computer algebra, Euler characteristic

ID: 183131535