56 citations · 130 across the 13 of their papers we have counts for
Showing 2020Show all
3 papers · 1 filter
math.GT2020★ 5 cited
Homotopy ribbon concordance, Blanchfield pairings, and twisted Alexander polynomials
Stefan Friedl, Takahiro Kitayama, Lukas Lewark +2
We establish homotopy ribbon concordance obstructions coming from the Blanchfield form and Levine-Tristram signatures. Then, as an application of twisted Alexander polynomials, we…
math.GT2020★ 4 cited
Embedding spheres in knot traces
Peter Feller, Allison N. Miller, Matthias Nagel +3
The trace of -framed surgery on a knot in is a 4-manifold homotopy equivalent to the 2-sphere. We characterise when a generator of the second homotopy group of such a mani…
math.GT2020★ 6 cited
Twisted signatures of fibered knots
Anthony Conway, Matthias Nagel
This paper concerns twisted signature invariants of knots and 3-manifolds. In the fibered case, we reduce the computation of these invariants to the study of the intersection form…