00893nas a2200121   4500008004100000245004200041210004200083300001200125490000700137520055100144100003000695856004600725       2018                        eng d00aFramed symplectic sheaves on surfaces0 aFramed symplectic sheaves on surfaces  a18500070 v293 a<p>A framed symplectic sheaf on a smooth projective surface $X$ is a torsion-free sheaf $E$ together with a trivialization on a divisor $D \subset X$ and a morphism $\Lambda^2 E \rightarrow \mathcal{O}_X$ satisfying some additional conditions. We construct a moduli space for framed symplectic sheaves on a surface, and present a detailed study for $X =\mathbb{P}_\mathbb{C}^2$. In this case, the moduli space is irreducible and admits an ADHM-type description and a birational proper map onto the space of framed symplectic ideal instantons.</p>1 aScalise, Jacopo, Vittorio  uhttps://doi.org/10.1142/S0129167X18500076