activity
19982022
most citedComputations of the Ozsvath-Szabo knot concordance invariant

94 citations · 448 across the 56 of their papers we have counts for

collaborators

67 papers

math.GT2022

Rank-expanding satellite operators on the topological knot concordance group

Charles Livingston

Given a fixed knot P in a solid torus and any knot K in S^3, one can form the satellite of K with pattern P. This operation induces a self-map of the concordance group of knots in…

math.GT2022

An Upsilon torsion function for knot Floer homology

Samantha Allen, Charles Livingston

Heegaard Floer theory produces chain complexes associated to knots. Viewed as modules over polynomial rings, such complexes yield torsion invariants that offer constraints on cobor…

math.GT2022

Signed clasp numbers and four-genus bounds

Charles Livingston

There exist knots having positive and negative four-dimensional clasp numbers zero but having four-genus, and hence clasp number, arbitrarily large. Such examples were first constr…

math.GT2022

Branched covers and rational homology balls

Charles Livingston

The concordance group of knots in the three-sphere contains an infinite subgroup generated by elements of order two, each one of which is represented by a knot K with the property…

math.GT2021★ 2 cited

Intrinsic symmetry groups of links

Charles Livingston

The set of isotopy classes of ordered n-component links in the 3-sphere is acted on by the symmetric group via permutation of the components. The intrinsic symmetry group of the li…

math.GT2021

Cobordism distance on the projective space of the knot concordance group

Charles Livingston

The cobordism distance on the knot concordance group is used to define a measure of how close two knots are to being linearly dependent. Roughly stated, d(K,J) is defined by minimi…