The crepant smooth-resolution conjecture for abelian cspan class="math-inline"mathGammac/spancspan class="math-inline"mathsubseteq\operatorname{SU}33c/spancspan class="math-inline"math

Let ΓSU(3)\Gamma\subset\operatorname{SU}(3) be an abelian group acting on C3\mathbb{C}^3 freely outside the origin. Let X0=C3/ΓX_0=\mathbb{C}^3/\Gamma, and let ρζ ⁣:XζX0\rho_\zeta\colon X_\zeta\to X_0 be the quotient morphism associated to a generic value of ζ\zeta. Crepant smooth-resolution conjecture. The morphism ρζ\rho_\zeta is crepant and XζX_\zeta is smooth, so it is a smooth resolution of X0X_0. This is proposed as a good case in which the quotients XζX_\zeta give natural, nonsingular minimal partial desingularisations; the source does not state a resolution of this conjecture.

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Primary source

Alexander V Sardo-Infirri, “Resolutions of Orbifold Singularities and Flows on the McKay Quiver”, arXiv:alg-geom/9610005 (1996).

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