Einstein metrics and exotic smooth structures (Q453226)

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scientific article; zbMATH DE number 6083923
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Einstein metrics and exotic smooth structures
scientific article; zbMATH DE number 6083923

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    Einstein metrics and exotic smooth structures (English)
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    19 September 2012
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    It is proved that there are 4--manifolds with infinitely many distinct structures for which Einstein metrics do not exist. Moreover, these manifolds satisfy the strict Hitchin-Thorpe inequality or the strict Miyaoka-Yau-LeBrun inequality. The result holds for both spin and nonspin cases.
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    4--manifold
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    Einstein metrics
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    special monopole classes
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    Seiberg-Witten invariants
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