COW: Surfaces with exceptional monodromy.

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• Genival da Silva (Washington University, St Louis)
• Thursday 21 April 2016, 11:30-12:30
• CMS MR14.

If you have a question about this talk, please contact Dr. J Ross.

There have been several constructions of family of varieties with exceptional monodromy group( Dettweiler-Reiter, Yun). In most cases, these constructions give Hodge structures with high weight. Nicholas Katz was the first to obtain Hodge structures with low weight( Hodge numbers not spread out) and geometric monodromy group G_2. In this talk I will describe Katz’s construction and give a geometric proof that the geometric monodromy group of the family constructed by him is G_2.

This talk is part of the Algebraic Geometry Seminar series.

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