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Ribbon homology cobordisms

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 نشر من قبل C.-M. Michael Wong
 تاريخ النشر 2019
  مجال البحث
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We study 4-dimensional homology cobordisms without 3-handles, showing that they interact nicely with Thurston geometries, character varieties, and instanton and Heegaard Floer homologies. Using these, we derive obstructions to such cobordisms, with topological applications.



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