activity
20002022
most citedNon-orientable surfaces in homology cobordisms

23 citations · 62 across the 12 of their papers we have counts for

collaborators

12 papers

math.GT2022

Disoriented homology and double branched covers

Brendan Owens, Sašo Strle

This paper provides a convenient and practical method to compute the homology and intersection pairing of a branched double cover of the 4-ball. To projections of links in the 3-ba…

math.GT2013★ 12 cited

Immersed disks, slicing numbers and concordance unknotting numbers

Brendan Owens, Saso Strle

We study three knot invariants related to smoothly immersed disks in the four-ball. These are the four-ball crossing number, which is the minimal number of normal double points of…

math.GT2013★ 23 cited

Non-orientable surfaces in homology cobordisms

Ira M. Gessel, Adam Simon Levine, Daniel Ruberman +1

We investigate constraints on embeddings of a non-orientable surface in a -manifold with the homology of , where is a rational homology -sphere. The constrain…

math.GT2011

Dehn surgeries and negative-definite four-manifolds

Brendan Owens, Saso Strle

Given a knot K in the three-sphere, we address the question: which Dehn surgeries on K bound negative-definite four-manifolds? We show that the answer depends on a number m(K), whi…

math.GT2011★ 2 cited

Concordance properties of parallel links

Daniel Ruberman, Saso Strle

We investigate the concordance properties of `parallel links' P(K), given by the (2,0) cable of a knot K. We focus on the question: if P(K) is concordant to a split link, is K nece…

math.GT2010★ 13 cited

Smooth concordance of links topologically concordant to the Hopf link

Jae Choon Cha, Taehee Kim, Daniel Ruberman +1

It was shown by Jim Davis that a 2-component link with Alexander polynomial one is topologically concordant to the Hopf link. In this paper, we show that there is a 2-component lin…