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• W2952760259 abstract "We present a local computation of deformations of the tangent bundle for a resolved orbifold singularity C^d/G. These correspond to (0,2)-deformations of (2,2)-theories. A McKay-like correspondence is found predicting the dimension of the space of first-order deformations from simple calculations involving the group. This is confirmed in two dimensions using the Kronheimer-Nakajima quiver construction. In higher dimensions such a computation is subject to nontrivial worldsheet instanton corrections and some examples are given where this happens. However, we conjecture that the special crepant resolution given by the G-Hilbert scheme is never subject to such corrections, and show this is true in an infinite number of cases. Amusingly, for three-dimensional examples where G is abelian, the moduli space is associated to a quiver given by the toric fan of the blow-up. It is shown that an orbifold of the form C^3/Z7 has a nontrivial superpotential and thus an obstructed moduli space." @default.
• W2952760259 created "2019-06-27" @default.
• W2952760259 creator A5011566219 @default.
• W2952760259 date "2011-10-11" @default.
• W2952760259 modified "2023-09-28" @default.
• W2952760259 title "A McKay-Like Correspondence for (0,2)-Deformations" @default.
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