|
Mathematics 2011
Symplectic structures on moduli spaces of framed sheaves on surfacesDOI: 10.2478/s11533-012-0063-1 Abstract: We provide generalizations of the notions of Atiyah class and Kodaira-Spencer map to the case of framed sheaves. Moreover, we construct closed two-forms on the moduli spaces of framed sheaves on surfaces. As an application, we define a symplectic structure on the moduli spaces of framed sheaves on some birationally ruled surfaces.
|