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A cabling formula for $ u^+$ invariant

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 نشر من قبل ZhongTao Wu
 تاريخ النشر 2015
  مجال البحث
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 تأليف Zhongtao Wu




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We prove a cabling formula for the concordance invariant $ u^+$, defined by the author and Hom. This gives rise to a simple and effective 4-ball genus bound for many cable knots.



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