On two moduli spaces of sheaves supported on quadric surfaces

Published 12 Jan 2015 in math.AG | (1501.02556v2)

Abstract: We show that the moduli space of semi-stable sheaves on a smooth quadric surface, having dimension 1, multiplicity 4, Euler characteristic 2, and first Chern class (2, 2), is the blow-up at two points of a certain hypersurface in a weighted projective space.

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Mario Maican

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