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math.AG2014★ 10 cited
Instantons and framed sheaves on Kähler Deligne-Mumford stacks
Philippe Eyssidieux, Francesco Sala
We provide stacky generalizations of classical gauge-theoretic results inspired by Donaldson, the Uhlenbeck-Yau theorem and variants due to Bando and his collaborators. Moreover, w…
math.AG2010★ 2 cited
Representations of the Heisenberg algebra and moduli spaces of framed sheaves
Francesco Sala, Pietro Tortella
We give a `geometrical' construction of an action of a Heisenberg algebra on the homology of the moduli spaces of torsion free sheaves on a complex smooth connected projective surf…