arXiv:math/0702484 Abstract

arXiv:math/0702484 [math.AG]Abstract References Reviews Resources

Quasi-lines and their degenerations

Published 2007-02-16, updated 2017-12-18Version 2

In this paper we study the structure of manifolds that contain a quasi-line and give some evidence towards the fact that the irreducible components of degenerations of the quasi-line should determine the Mori cone. We show that the minimality with respect to a quasi-line yields strong restrictions on fibre space structures of the manifold.

Comments: 20 pages, changed metadata

Categories: math.AG

Subjects: 14E30, 14J10, 14J30, 14J40, 14J45

Keywords: degenerations, quasi-line yields strong restrictions, fibre space structures, mori cone, minimality

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