237 citations · 1.2k across the 58 of their papers we have counts for
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math.AG2008★ 27 cited
Counting invariant of perverse coherent sheaves and its wall-crossing
Kentaro Nagao, Hiraku Nakajima
We introduce moduli spaces of stable perverse coherent systems on small crepant resolutions of Calabi-Yau 3-folds and consider their Donaldson-Thomas type counting invariants. The…
math.AG2008★ 4 cited
Perverse coherent sheaves on blow-up. II. wall-crossing and Betti numbers formula
Hiraku Nakajima, Kota Yoshioka
This is the second of series of papers studyig moduli spaces of a certain class of coherent sheaves, which we call stable perverse coherent sheaves, on the blow-up of a projective…
math.AG2008★ 13 cited
Perverse coherent sheaves on blow-up. I. a quiver description
Hiraku Nakajima, Kota Yoshioka
This is the first of two papers studying moduli spaces of a certain class of coherent sheaves, which we call {\it stable perverse coherent sheaves}, on the blowup of a projective s…