A cabling formula for the 𝜈⁺ invariant

Wu, Zhongtao

doi:10.1090/proc/13029

A cabling formula for the $\nu ^+$ invariant
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Proc. Amer. Math. Soc. 144 (2016), 4089-4098 Request permission

Abstract:

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

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