AI 中文总结
本文针对Demailly-Peternell-Schneider猜想的Kähler情形,在不假设映射为射影态射的条件下,证明了正规Kähler簇间满全纯映射对应的$-K_Y$伪有效,拓展了Fu等人的已有结论。
AI 中文摘要
设$f:(X,\triangle)\rightarrow Y$是两个正规Kähler簇之间的满全纯映射,其中$(X,\triangle)$是一个对数典范对,$-(K_X+\triangle)$是数值等价于有效除子(nef)的,且$Y$是$\boldsymbol{Q}$-Gorenstein的。在Fu-Guo-Song-Wang[18]的工作中,已证明若$f$是射影态射,则$-K_Y$是伪有效的。本文证明无需假设$f$是射影态射,$-K_Y$即为伪有效的。
英文摘要
Let $f:(X,Δ)\rightarrow Y$ be a surjective holomorphic map between two normal Kahler varieties, where (X,Δ) is a log canonical pair, -(KX+Δ) is nef and Y is Q-Gorenstein. In Fu-Guo-Song-Wang [18], it is proved that -KY is pseudo-effective if f is a projective morphism. In this paper, prove that -KY is pseudo-effective without assuming that f is projective