Tohoku Mathematical Journal
2009
December
SECOND SERIES VOL. 61, NO. 4

Tohoku Math. J.
61 (2009), 475-481

Title EFFECTIVE BASE POINT FREE THEOREM FOR LOG CANONICAL PAIRS---KOLLÁR TYPE THEOREM

Author Osamu Fujino

(Received December 5, 2008, revised June 24, 2009)
Abstract. Kollár's effective base point free theorem for kawamata log terminal pairs is very important and was used in Hacon-McKernan's proof of pl flips. In this paper, we generalize Kollár's theorem for log canonical pairs.

2000 Mathematics Subject Classification. Primary 14C20; Secondary 14E30.

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