Multi-point Seshadri constants on ruled surfaces

2016/10/25 by Hanumanthu, Krishna, Mukhopadhyay, Alapan
#14C20 #14H50 #Algebraic Geometry (math.AG) #FOS: Mathematics

paper · doi:10.48550/arxiv.1610.07812

Abstract

Let X be a surface and let L be an ample line bundle on X. We first obtain a lower bound for the Seshadri constant ε(X,L,r), when r ≥ 3. We then assume that X is a ruled surface and study Seshadri constants on X in greater detail. We also make precise computations of Seshadri constants on X in some cases.

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