34 citations · 58 across the 5 of their papers we have counts for
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Smoothly slice knots with Alexander polynomial 1 and high unknotting number
Lukas Lewark
We prove the existence of a smoothly doubly slice, amphicheiral knot with Alexander polynomial 1 and unknotting number 5.
Khovanov homology and refined bounds for Gordian distances
Lukas Lewark, Laura Marino, Claudius Zibrowius
From Khovanov homology, we extract a new lower bound for the Gordian distance of knots, which combines and strengthens the previously existing bounds coming from Rasmussen invarian…
The second coefficient of the Alexander polynomial as a satellite obstruction
Lukas Lewark
A set L of links is introduced, containing positive braid links as well as arborescent positive Hopf plumbings. It is shown that for links in P, the leading and the second coeffici…
A new concordance homomorphism from Khovanov homology
Lukas Lewark
The universal Khovanov chain complex of a knot modulo an appropriate equivalence relation is shown to yield a homomorphism on the smooth concordance group, which is strictly strong…
Rasmussen's spectral sequences and the sl(N)-concordance invariants
Lukas Lewark
Combining known spectral sequences with a new spectral sequence relating reduced and unreduced sl(N)-homology yields a relationship between the Homflypt-homology of a knot and its…