下垂 发表于 2025-3-26 21:59:18
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Correspondences,graph of a rational map, are basic examples, but more general correspondences have played an important role in the development of algebraic geometry. On complete non-singular varieties correspondences have a product ß ° α, and a correspondence .determines homomorphisms α.from . to ., and α. from . t鞭打 发表于 2025-3-27 05:32:48
http://reply.papertrans.cn/48/4729/472838/472838_33.pngmyalgia 发表于 2025-3-27 13:09:49
Riemann-Roch for Singular Varieties,f a closed subset . This produces a localized Chern character. ch.(.) which lives in the bivariant group.For each class α∈..., this gives a class.whose image in. is.The properties needed for Riemann-Roch, in particular the invariance under rational deformation, follow from the bivariant nature of ch指数 发表于 2025-3-27 15:39:51
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http://reply.papertrans.cn/48/4729/472838/472838_36.pngEjaculate 发表于 2025-3-27 21:55:57
http://reply.papertrans.cn/48/4729/472838/472838_37.pngConjuction 发表于 2025-3-28 05:57:40
http://reply.papertrans.cn/48/4729/472838/472838_38.png友好 发表于 2025-3-28 08:19:33
William Fulton die Philosophie der Mathematik nachzudenken und eine eigene Position zu formulieren und für diese zu argumentieren. .Die zweite Auflage ist vollständig durchgesehen und um ein Kapitel zum Idealismus ergänzt. .978-3-662-63713-5978-3-662-63714-2ATOPY 发表于 2025-3-28 12:15:22
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