6-canonical maps of nonsingular minimal 3-folds
type: Item
instance of: scholarly article
title: 6-canonical maps of nonsingular minimal 3-folds
zbMATH Open document ID: 0852.14010
published in: Chinese Annals of Mathematics. Series B
publication date: 1996-12-08T00:00:00Z
review text: Let \(X\) be a complex nonsingular projective threefold whose canonical divisor is nef and big. It is known that the map \(\varphi_n\) associated to the linear system \(|nK_X |\) is birational for \(n\geq 7\). -- In this note the author studies the case \(n=6\) under the assumption that \(|2K_X |\) is not composed with a pencil. He proves that \(\varphi_6\) is also birational, with two possible exceptions.
Mathematics Subject Classification ID: 14J30
Mathematics Subject Classification ID: 14C20
zbMATH DE Number: 770001
zbMATH Keywords: nef canonical divisor
zbMATH Keywords: threefold
author: Meng Chen
reviewed by: Luciana Picco Botta
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 770001