Seshadri fibrations of algebraic surfaces

Abstract

We refine results of Hwang, Keum and Szemberg, Tutaj-Gasinska which relate local invariants - Seshadri constants - of ample line bundles on surfaces to the global geometry - fibration structure. We show that the same picture emerges when looking at Seshadri constants measured at any finite subset of the given surface.

8 pages, to appear in Math. Nachr

Cited by in corpus (3)

• Seshadri constants and surfaces of minimal degree
• Moving curves and Seshadri constants
• Seshadri constants on surfaces of general type