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Algebraic surfaces with nef and big anti-canonical divisor

Published online by Cambridge University Press:  24 October 2008

D.-Q. Zhang
D.-Q. Zhang
Affiliation:
Department of Mathematics, National University of Singapore, Singapore 0511. E-mail: MATZDQ©NUSVM.BITNET
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Extract

Let S be a normal projective algebraic surface over C with at worst quotient singularities. S is a quasi-log del Pezzo surface if the anti-canonical divisor — Ks is nef (= numerically effective) and big, i.e. — Ks. C ≥ 0 for all curves C on S and (−Ks)2 > 0. Further, if — Ks is ample we say S is a log del Pezzo surface.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 117 , Issue 1 , January 1995 , pp. 161 - 163
Copyright
Copyright © Cambridge Philosophical Society 1995

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References

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