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Francesco Polizzi
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Let $(M,g)$ be a compact Riemannian manifold with boundary and assume it has positive scalar curvature. Is it true that $DM$, the double of $M$, admits a metric of positive scalar curvature?

Question. Is it true that $DM$, the double of $M$, admits a metric of positive scalar curvature?

Let $(M,g)$ be a compact Riemannian manifold with boundary and assume it has positive scalar curvature. Is it true that $DM$, the double of $M$, admits a metric of positive scalar curvature?

Let $(M,g)$ be a compact Riemannian manifold with boundary and assume it has positive scalar curvature.

Question. Is it true that $DM$, the double of $M$, admits a metric of positive scalar curvature?

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Eduardo Longa
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Positive scalar curvature on the double of a manifold

Let $(M,g)$ be a compact Riemannian manifold with boundary and assume it has positive scalar curvature. Is it true that $DM$, the double of $M$, admits a metric of positive scalar curvature?