Year: 2021
Type: article
Abstract: In this article we present a refinement of the base point free theorem for threefolds in positive characteristic.If L is a nef Cartier divisor of numerical dimension at least one on a projective Kawamata log terminal threefold (X, ∆) over a perfect field k of characteristic p ≫ 0 such that L -(K X + ∆) is big and nef, then we show that the linear system |mL| is base point free for all sufficiently large integers m > 0.
Author: Fabio Bernasconi
Institution: University of Utah
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2963265156