The Effective Cone of the Kontsevich Moduli Space
The Effective Cone of the Kontsevich Moduli Space
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Kontsevich 模空间的有效锥
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
J. Starr
中科院分区:
文献类型:
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作者:
Izzet Coskun;J. Harris;J. Starr
Abstract In this paper we prove that the cone of effective divisors on the Kontsevich moduli spaces of stable maps, ${{overline{M}}_{0,0}}left( {{mathbb{P}}^{r}},,d
ight)$ , stabilize when $r,ge ,d$ . We give a complete characterization of the effective divisors on ${{overline{M}}_{0,0}}left( {{mathbb{P}}^{d}},,d
ight)$ . They are non-negative linear combinations of boundary divisors and the divisor of maps with degenerate image.