Sheaves on fibered threefolds and quiver sheaves
نویسنده
چکیده
This paper classifies a class of holomorphic D-branes, closely related to framed torsion-free sheaves, on threefolds fibered in resolved ADE surfaces over a general curve C, in terms of representations with relations of a twisted Kronheimer– Nakajima-type quiver in the category Coh(C) of coherent sheaves on C. For the local Calabi–Yau case C ∼= A and special choice of framing, one recovers the N = 1 ADE quiver studied by Cachazo–Katz–Vafa.
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