English

Burnside rings and volume forms with logarithmic poles

Algebraic Geometry 2023-01-16 v2

Abstract

We develop a theory of Burnside rings in the context of birational equivalences of algebraic varieties equipped with logarithmic volume forms. We introduce a residue homomorphism and construct an additive invariant of birational morphisms. We also define a specialization homomorphism. -- Nous proposons une th\'eorie d'anneaux de Burnside dans le contexte de la g\'eom\'etrie birationnelle des vari\'et\'es alg\'ebriques munies d'une forme volume \`a p\^oles logarithmiques. Nous introduisons un homomorphisme {\guillemotleft} r\'esidu {\guillemotright}, construisons un invariant additif des morphismes birationnels. Nous d\'efinissons aussi un homomorphisme de sp\'ecialisation.

Keywords

Cite

@article{arxiv.2301.02899,
  title  = {Burnside rings and volume forms with logarithmic poles},
  author = {Antoine Chambert-Loir and Maxim Kontsevich and Yuri Tschinkel},
  journal= {arXiv preprint arXiv:2301.02899},
  year   = {2023}
}

Comments

28 pages. Correction of lapsus in {\S}7

R2 v1 2026-06-28T08:06:12.171Z