Moduli spaces of sheaves and an effective version of
Merkurjev's theorem  -- Max Lieblich, April 30, 2010                                                         
                                                    
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I will describe some asymptotic geometry of the
moduli space of twisted vector bundles with parabolic structure
and use it to prove a general result on division algebras over
function fields of surfaces over finite fields that, in a
special case, gives an effective form of Merkurjev's theorem
on the 2-torsion in the Brauer group. This talk is not intended
for experts; I will explain everything I'm talking about!