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Compact moduli spaces for slope-semistable sheaves - Daniel Greb
8 Views • Mar 15, 2013
Description
Speaker: Daniel Greb (Bochum)
Title: Compact moduli spaces for slope-semistable sheaves
Abstract: While the variation of moduli spaces of H-slope/Gieseker-semistable sheaves on surfaces under change of the ample polarisation H is well-understood, research on the corresponding question in the case of higher-dimensional base manifolds revealed a number of pathologies. After presenting these, I will discuss recent joint work with Matei Toma (Nancy), which resolves some of these pathologies by looking at curves instead of divisors. This naturally leads to the question whether higher-dimensional analogues of the Donaldson-Uhlenbeck compactification exists, and I will discuss our construction of such a compactification.
http://www.maths.ed.ac.uk/cheltsov/seminar/
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