2 citations · 2 across the 2 of their papers we have counts for
3 papers
math.GT2026
Étude on the Delta-unknotting number
Sebastian Baader, Lukas Lewark
We derive an almost sharp lower bound on the Casson invariant of positive braid knots. As a consequence, we show that the -unknotting number is quasi-additive on the set of posi…
math.GT2019
Untwisting 3-strand torus knots
Sebastian Baader, Ian Banfield, Lukas Lewark
We prove that the signature bound for the topological 4-genus of 3-strand torus knots is sharp, using McCoy's twisting method. We also show that the bound is off by at most 1 for 4…
math.CO2018★ 2 cited
Multiple addition, deletion and restriction theorems for hyperplane arrangements
Takuro Abe, Hiroaki Terao
In the study of free arrangements, the most useful result to construct/check free arrangements is the addition-deletion theorem. Recently, the multiple version of the addition theo…