Toric varieties whose blow-up at a point is Fano
Toric varieties whose blow-up at a point is Fano
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托里克品种,其在某一点上的爆发是法诺
DOI:
10.2748/tmj/1113247651
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发表时间:
2000
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影响因子:
--
通讯作者:
L. Bonavero
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文献类型:
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作者:
L. Bonavero
We classify smooth toric Fano varieties of dimension $n\geq 3$ containing a toric divisor isomorphic to $\PP^{n-1}$. As a consequence of this classification, we show that any smooth complete toric variety $X$ of dimension $n\geq 3$ with a $T$-fixed point $x\in X$ such that the blow-up $B_x(X)$ of $X$ at $x$ is Fano is isomorphic either to $\PP^n$ or to the blow-up of $\PP^n$ along a $\PP^{n-2}$. As expected, such results are proved using toric Mori theory due to Reid.