2 problems

The universal-cover criterion for smooth triviality of elliptic 3-manifold s-cobordisms
Universal-cover criterion. A smooth $s$ -cobordism of elliptic $3$ -manifolds is smoothly trivial if and only if its universal cover is smoothly trivial.
openFrom papers3-manifolds s-cobordisms smooth-4-manifolds
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3
Chen's smooth product conjecture for elliptic 3-manifold s-cobordisms
Let $M$ be an elliptic $3$ -manifold, and let $W$ be a smooth $s$ -cobordism from $M$ to itself. Let $\widetilde{W}$ be its universal cover. Chen's smooth product conjecture. $W$ is…
openFrom papers3-manifolds s-cobordisms smooth-topology
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3

The universal-cover criterion for smooth triviality of elliptic 3-manifold s-cobordisms