The finite SU(3)-invariant AC shrinker conjecture for fixed negative parameter

From papers

Fix λ<0\lambda<0 and consider the 4-dimensional space of local SU(3)\textup{SU}(3)-invariant shrinkers, together with the complete AC shrinkers among them on Λ2CP2\Lambda^2_-\mathbb{CP}^2. Fixed-parameter SU(3)-invariant finiteness conjecture. For fixed λ<0\lambda<0, there are finitely many complete SU(3)\textup{SU}(3)-invariant AC shrinkers. The expected finiteness follows from the intersection of the codimension-2 space of AC shrinker ends with the codimension-2 space of smoothly-closing solutions; it remains open.

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Sources & referencesView supporting material

Primary source

Mark Haskins, Rowan Juneman and Johannes Nordström, “Sp(2)-invariant expanders and shrinkers in Laplacian flow”, arXiv:2501.05437 (2025).

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