Burnside rings and volume forms with logarithmic poles
Université Paris Cité, Institut de Mathématiques de Jussieu-Paris Rive Gauche(巴黎西岱大学,儒勒·昂里希数学研究所(巴黎左岸));Institut des Hautes Études Scientifiques(高等科学研究所);Courant Institute, NYU(纽约大学柯朗数学科学研究所)
Antoine Chambert-Loir, Maxim Kontsevich, Yuri Tschinkel
备注:
29 pages. Final version
发表信息:
Pure and Applied Mathematics Quarterly 22 (2026) 521-554
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.
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Nous proposons une théorie d'anneaux de Burnside dans le contexte de la géométrie birationnelle des variétés algébriques munies d'une forme volume à pôles logarithmiques. Nous introduisons un homomorphisme « résidu », construisons un invariant additif des morphismes birationnels. Nous définissons aussi un homomorphisme de spécialisation.
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