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Decomposition theorem for the logarithmic Hitchin fibration

SEMINARS: HARVARD-MIT ALGEBRAIC GEOMETRY

When: September 10, 2024
3:00 pm - 4:00 pm
Where: MIT, Room 2-132
Speaker: Andres Fernandez Herrero - University of Pennsylvania

The focus of this talk will be the moduli space of logarithmic G-Higgs bundles on a smooth projective curve, where G is a reductive group. I will explain some recent progress towards understanding the intersection cohomology of this moduli space: a description of the decomposition theorem for the corresponding Hitchin fibration. This is based on work in progress joint with Mark de Cataldo, Roberto Fringuelli and Mirko Mauri.