Rigid Stable Vector Bundles on Hyperkähler Varieties of Type
Kieran G. O’Grady
Abstract:We prove existence and unicity of slope-stable vector bundles on a general polarized hyperkähler (HK) variety of type
$K3^{[n]}$
with certain discrete invariants, provided the rank and the first two Chern classes of the vector bundle satisfy certain equalities. The latter hypotheses at first glance appear to be quite restrictive, but, in fact, we might have listed almost all slope-stable rigid projectively hyperholomorphic vector bundles on polarized HK varieties of type
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