Weyl Groups and Birational Transformations among Minimal Models(Memoirs of the American Mathematical Society)

代数几何学

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作      者
出版时间
1995年07月30日
装      帧
平装
ISBN
9780821803417
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页      码
133
开      本
26 cm
语      种
英文
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图书简介
This work provides a unified way of looking at the apparently sporadic Weyl groups connected with the classical algebraic geometry of surfaces from the viewpoint of the recently established Minimal Model Program for (3)-folds (Mori’s Program). Matsuki explores the correspondence between the algebraic objects (the Weyl chambers, roots, reflections) and geometric objects (the ample cones of minimal models, extremal rays, flops) for the Weyl groups appearing with rational double points, Kodaira-type degenerations of elliptic curves and K3 surfaces. A complete table for all the extremal rays of Fano (3)-folds also appears here for the first time, along with some interesting examples of flops for (4)-folds.
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