2020 Toric Fano contractions associated to long extremal rays
Osamu Fujino, Hiroshi Sato
Tohoku Math. J. (2) 72(1): 77-86 (2020). DOI: 10.2748/tmj/1585101622

Abstract

We show that a toric Fano contraction associated to an extremal ray whose length is greater than the dimension of its fiber is a projective space bundle.

Citation

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Osamu Fujino. Hiroshi Sato. "Toric Fano contractions associated to long extremal rays." Tohoku Math. J. (2) 72 (1) 77 - 86, 2020. https://doi.org/10.2748/tmj/1585101622

Information

Published: 2020
First available in Project Euclid: 25 March 2020

zbMATH: 07199988
MathSciNet: MR4079425
Digital Object Identifier: 10.2748/tmj/1585101622

Subjects:
Primary: 14M25
Secondary: 14E30

Keywords: Fano contractions , lengths of extremal rays , projective bundles , toric Mori theory

Rights: Copyright © 2020 Tohoku University

Vol.72 • No. 1 • 2020
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