丰簇族、多重齐次谱与形式概型的代数化
代数几何
2007-05-23 v3
摘要
推广由自然数分次环的齐次谱,我们引入由 Abel 群分次环的多重齐次谱。此类齐次谱具有与其经典对应物相同的完备性性质,但可能是非分离的。我们将它们与可逆层的丰簇族以及单纯环面簇相联系。作为应用,我们推广Grothendieck的代数化定理,并证明具有某些丰簇族的形式概型是可代数化的。
引用
@article{arxiv.math/0012082,
title = {Ample families, multihomogeneous spectra, and algebraization of formal schemes},
author = {Holger Brenner and Stefan Schroeer},
journal= {arXiv preprint arXiv:math/0012082},
year = {2007}
}
备注
18 pages. Proof of Proposition 2.5 corrected and related examples included (the irrelevant ideal does not necessarily commute with base change, but its radical does)