paper

Irrational nef rays at the boundary of the Mori cone for very general blowups of the plane

arXiv:2201.08634

Abstract

In this paper we develop a technique for discovering (non-effective) irrational rays at the boundary of the Mori cone for linear systems on a general blowup of the plane, and give examples of such irrational rays.

arXiv comment14 pages. Comments welcome