# Perverse coherent sheaves on blowup surfaces

Hiraku Nakajima (Kyoto)
Abstract

We consider moduli spaces of a certain class of coherent sheaves on the blowup of a projective surface, called perverse coherent sheaves. They connect usual moduli spaces of sheaves on the blowup and on the original surface through wall-crossings. I will give a desciption of moduli spaces for framed perverse coherent sheaves on the blowup of the projective plane in terms of quiver.

nakajima@math.kyoto-u.ac.jp