Abstract
We show that on an 8-dimensional manifold with Euler characteristic zero every semiflat metric must be flat.
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Kim, H., Kim, J. An Equivalent Flat Condition. Siberian Mathematical Journal 44, 817–820 (2003). https://doi.org/10.1023/A:1025984703023
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DOI: https://doi.org/10.1023/A:1025984703023