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SUMMARY:Johannes Horn (Johann Wolfgang Goethe-Universität in Frankfurt)
DTSTART:20220201T163000Z
DTEND:20220201T173000Z
DTSTAMP:20260423T022620Z
UID:Geolis/72
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/Geolis/72/">
 Resolving the rank 2 Hitchin system by compactified Jacobians of semi-stab
 le curves</a>\nby Johannes Horn (Johann Wolfgang Goethe-Universität in Fr
 ankfurt) as part of Geometria em Lisboa (IST)\n\n\nAbstract\n(joint work w
 ith M. Möller) The complexity of singular fibers of the Hitchin system st
 ems from the variety of singularities of the spectral curve. In this talk 
 I will explain how to modify the rank 2 Hitchin base\, such that the famil
 y of spectral curves can be resolved to a family of semi-stable nodal curv
 es. This allows to extend the Hitchin system to the singular locus of the 
 modified Hitchin base by well-understood compactified Jacobians of semi-st
 able curves\n
LOCATION:https://researchseminars.org/talk/Geolis/72/
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