Geometry & Topology

Covering link calculus and iterated Bing doubles

Jae Choon Cha and Taehee Kim

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Abstract

We give a new geometric obstruction to the iterated Bing double of a knot being a slice link: for n>1 the (n+1)–st iterated Bing double of a knot is rationally slice if and only if the n–th iterated Bing double of the knot is rationally slice. The main technique of the proof is a covering link construction simplifying a given link. We prove certain similar geometric obstructions for n≤1 as well. Our results are sharp enough to conclude, when combined with algebraic invariants, that if the n–th iterated Bing double of a knot is slice for some n, then the knot is algebraically slice. Also our geometric arguments applied to the smooth case show that the Ozsváth–Szabó and Manolescu–Owens invariants give obstructions to iterated Bing doubles being slice. These results generalize recent results of Harvey, Teichner, Cimasoni, Cha and Cha–Livingston–Ruberman. As another application, we give explicit examples of algebraically slice knots with nonslice iterated Bing doubles by considering von Neumann ρ–invariants and rational knot concordance. Refined versions of such examples are given, that take into account the Cochran–Orr–Teichner filtration.

Article information

Source
Geom. Topol., Volume 12, Number 4 (2008), 2173-2201.

Dates
Received: 8 January 2008
Revised: 23 June 2008
Accepted: 24 May 2008
First available in Project Euclid: 20 December 2017

Permanent link to this document
https://projecteuclid.org/euclid.gt/1513800124

Digital Object Identifier
doi:10.2140/gt.2008.12.2173

Mathematical Reviews number (MathSciNet)
MR2431018

Zentralblatt MATH identifier
1181.57005

Subjects
Primary: 57M25: Knots and links in $S^3$ {For higher dimensions, see 57Q45} 57N70: Cobordism and concordance

Keywords
iterated Bing doubles covering links slice links rational concordance von Neumann $\rho$–invariants Heegaard Floer invariants

Citation

Cha, Jae Choon; Kim, Taehee. Covering link calculus and iterated Bing doubles. Geom. Topol. 12 (2008), no. 4, 2173--2201. doi:10.2140/gt.2008.12.2173. https://projecteuclid.org/euclid.gt/1513800124


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