Dongsoo Lee

collaborators

2 papers

math.GT2020

Homology handles with trivial Alexander polynomial

Dongsoo Lee

Using Freedman and Quinn's result for $Z$ -homology 3-spheres, we show that a 3-dimensional homology handle with trivial Alexander polynomial bounds a homology $S^1\times D…

math.GT2020

On the kernel of the zero-surgery homomorphism from knot concordance

Dongsoo Lee

Kawauchi defined a group structure on the set of homology $S^{1}$ $\times$ $S^{2}$ 's under an equivalence relation called $H$ -cobordism. This group receives a homomorphism fr…