Universal-cover homology conjecture for positive intermediate curvature

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Let MnM^n be a closed manifold with 3≤n≤73\leq n\leq 7, and let M‾\overline M be its universal cover. Assume that

Hn(M‾,Z)=Hn−1(M‾,Z)=⋯=Hn−m+1(M‾,Z)=0.H_n(\overline M,\mathbb{Z})=H_{n-1}(\overline M,\mathbb{Z})=\cdots=H_{n-m+1}(\overline M,\mathbb{Z})=0.

Universal-cover homology conjecture. Then MM does not admit a metric with positive mm-intermediate curvature. The conjecture is proposed as a common generalization of the aspherical-manifold and generalized Geroch results; the source does not establish it in full.

References

Primary source

Liam Mazurowski, Tongrui Wang and Xuan Yao, “On the topology of manifolds with positive intermediate curvature”, arXiv:2503.13815 (2025).

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