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On definite lattices bounded by integer surgeries along knots with slice genus at most 2

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 نشر من قبل Christopher Scaduto
 تاريخ النشر 2018
  مجال البحث
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We classify the positive definite intersection forms that arise from smooth 4-manifolds with torsion-free homology bounded by positive integer surgeries on the right-handed trefoil. A similar, slightly less complete classification is given for the (2,5)-torus knot, and analogous results are obtained for integer surgeries on knots of slice genus at most two. The proofs use input from Yang--Mills instanton gauge theory and Heegaard Floer correction terms.



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