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20202024
most citedCollapsing and group growth as obstructions to Einstein metrics on some smooth 4-manifolds

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math.DG2021★ 1 cited

Collapsing and group growth as obstructions to Einstein metrics on some smooth 4-manifolds

Haydeé Contreras Peruyero, Pablo Suárez-Serrato

We show that a combination of collapsing and excessive growth from the fundamental group impedes the existence of Einstein metrics on several families of smooth four-manifolds. The…