| 概要 | I will report on a recent joint project with H. Ohashi on automorphisms
of certain moduli spaces of sheaves on K3 surfaces. these manifolds are
deformation equivalent to Hilbert schemes of two points on a K3 surface
and are therefore irreducible symplectic or hyperkaehler manifolds.
Furthermore I want to sketch the results of a joint work in progress with
G. Mongardi (Milano) generalising the above results in a considerable
way. |