Browsing by Author "Tortella, Pietro"

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    Representations of the Heisenberg algebra and moduli spaces of framed sheaves
    (2010-05-28T10:31:11Z) Sala, Francesco; Tortella, Pietro; Mathematics; Mathematical Physics
    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 surface, framed along a smooth connected genus zero curve. This result generalizes Nakajima's construction for the Hilbert schemes of points.