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edited Jun 25, 2020 at 13:18

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reference-request differential-topology smooth-manifolds

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edited Jun 25, 2020 at 3:01

Mohammad Farajzadeh-Tehrani

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differential-topology smooth-manifolds

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asked Jun 25, 2020 at 2:43

Mohammad Farajzadeh-Tehrani

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If $M$ and $N$ are closed and $M\times S^1$ is diffeomorphic to $N\times S^1$, is it true that $M$ and $N$ are diffeomorphic?

If $M$ and $N$ are closed smooth manifolds, and $M\times S^1$ is diffeomorphic to $N\times S^1$, is it true that $M$ and $N$ are diffeomorphic?

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