Inequalities between the Chern numbers of a singular fiber in a family of algebraic curves

Details Inequalities between the Chern numbers of a singular fiber in a family of algebraic curves Inequalities between the Chern numbers of a singular fiber in a family of algebraic curves

2010-03-09

arxiv.org/abs/1003.1767v1

Mathematics

Algebraic Geometry

23 pages

Scientific paper

In a family of curves, the Chern numbers of a singular fiber are the local contributions to the Chern numbers of the total space. We will give some inequalities between the Chern numbers of a singular fiber as well as their lower and upper bounds. We introduce the dual fiber of a singular fiber, and prove a duality theorem. As an application, we will classify singular fibers with large or small Chern numbers.

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