The global moduli fibration conjecture for special-holonomy QALE resolutions

Let VV be a vector space, let ΓSU(V)\Gamma\subset\operatorname{SU}(V) be finite, and assume that V/ΓV/\Gamma admits a crepant resolution. Let ΘIm(K)\Theta_{\operatorname{Im}(\mathbb{K})} denote the relevant parameter space. The global moduli fibration conjecture. There exists a stratified Riemannian fibration

κ:MΘIm(K)\kappa:\mathbb{M}\to\Theta_{\operatorname{Im}(\mathbb{K})}

equivariant under R>0×NSO(V)(Γ)\mathbb{R}_{>0}\times N_{\operatorname{SO}(V)}(\Gamma), equipped with an Ehresmann connection Hˇ\check{H} and a vertically closed differential form of the stated Calabi–Yau or hyperkähler type. Its fibres are special-holonomy QALE spaces resolving V/ΓV/\Gamma and fit together in a family via the displayed maps ρζ\rho_\zeta. This conjectures a global parameter-space geometry extending the known local quotient constructions; the source gives no resolution.

Sources & referencesView supporting material

Primary source

Viktor F. Majewski, “Spin(7)-Orbifold Resolutions”, arXiv:2509.16057 (2026).

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