Fano-Mori contractions of high length on projective varieties with terminal singularities

Autor:	Marco Andreatta, Luca Tasin
Rok vydání:	2013
Předmět:	Combinatorics Mathematics - Algebraic Geometry Contraction (grammar) General Mathematics FOS: Mathematics Gravitational singularity 14E30 14J40 14N30 Fano plane Projective test Algebraic Geometry (math.AG) Projective variety Mathematics
Zdroj:	Bulletin of the London Mathematical Society. 46:185-196
ISSN:	0024-6093
Popis:	Let X be a projective variety with terminal singularities and let L be an ample Cartier divisor on X. We prove that if f is a birational contraction associated to an extremal ray $ R \subset \bar {NE(X)}$ such that R.(K_X+(n-2)L) 12 pages. We fixed some lemmas and improved the exposition. To appear in the Bulletin of the London Mathematical Society
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53002ad497ed2dfbf9d4df08eb641a36 https://doi.org/10.1112/blms/bdt083 Zobrazit plný text záznamu Plný text