Canonical Maps to Twisted Rings

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If A is a strongly noetherian graded algebra generated in degree one, then there is a canonically constructed graded ring homomorphism from A to a twisted homogeneous coordinate ring B(X, L, sigma), which is surjective in large degree. This result is a key step in the study of projectively simple rings. The proof relies on some results concerning the growth of graded rings which are of independent interest.
LaTeX, 21 pages; corollary of main theorem added to intro; other minor changes from ver. 1

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Rings and Algebras, Algebraic Geometry, 16P90, 16S38, 16W50, 14A22

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http://salesiana.dossiersoluciones.com/handle/123456789/72574

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0409405
 http://arxiv.org/abs/math/0409405

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arXiv