Nef and semiample divisors on rational surfaces
Nef and semiample divisors on rational surfaces
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有理曲面上的 Nef 和半整数因数
DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
D. Testa
中科院分区:
文献类型:
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作者:
A. Laface;D. Testa
In this paper we study smooth projective rational surfaces, defined over an algebraically closed field of any characteristic, with pseudo-effective anticanonical divisor. We provide a necessary and sufficient condition in order for any nef divisor to be semiample. We adopt our criterion to investigate Mori dream surfaces in the complex case.