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math.GT2020
Fibered and strongly quasi-positive -space links
Alberto Cavallo, Beibei Liu
Every -space knot is fibered and strongly quasi-positive, but this does not hold for -space links. In this paper, we use the so called H-function, which is a concordance link…
math.GT2019
A note on the weak splitting number
Alberto Cavallo, Carlo Collari, Anthony Conway
The weak splitting number of a link is the minimal number of crossing changes needed to turn into a split union of knots. We describe conditions under which certai…
math.GT2018
Slice-torus concordance invariants and Whitehead doubles of links
Alberto Cavallo, Carlo Collari
In the present paper we extend the definition of slice-torus invariant to links. We prove a few properties of the newly-defined slice-torus link invariants: the behaviour under cro…