The nearly Kähler conifold desingularization obstruction conjecture

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Let (X‾,ωCS,ρCS)(\overline{X},\omega_{CS},\rho_{CS}) be a nearly Kähler conifold with a singularity at x0x_0 modelled on the Calabi--Yau cone (C=C(L),ωC,ρC)(C=C(L),\omega_C,\rho_C). An obstruction conjecture for nearly Kähler conifolds. If every asymptotically conical Calabi--Yau manifold asymptotic to (C,φC)(C,\varphi_C) has rate ν<−3\nu<-3, then there is no smooth nearly Kähler manifold Gromov--Hausdorff close to (X‾,ωCS,ρCS)(\overline{X},\omega_{CS},\rho_{CS}). This is the nearly Kähler analogue of the preceding conjectural obstruction and concerns desingularizations near the conifold metric; substantial analytical challenges remain in establishing such a result in the weak holonomy setting.

References

Primary source

Lothar Schiemanowski, “Topology of asymptotically conical Calabi–Yau and G2 manifolds and desingularization of nearly Kähler and nearly G2 conifolds”, arXiv:2205.15922 (2022).

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