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Link concordance and generalized doubling operators
Tim Cochran, Shelly Harvey and Constance Leidy
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Algebraic & Geometric Topology 8
(2008) 1593–1646
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Abstract
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We introduce a technique for showing classical knots and links are not slice. As one
application we show that the iterated Bing doubles of many algebraically slice knots
are not topologically slice. Some of the proofs do not use the existence of the
Cheeger–Gromov bound, a deep analytical tool used by Cochran–Teichner. We define
generalized doubling operators, of which Bing doubling is an instance, and prove our
nontriviality results in this more general context. Our main examples are boundary
links that cannot be detected in the algebraic boundary link concordance
group.
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Keywords
Bing double, signature, links,
concordance, (n)-solvable
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Mathematical Subject Classification
Primary: 57M10, 57M25
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Publication
Received: 23 January 2008
Revised: 23 July 2008
Accepted: 22 August 2008
Published: 18 September 2008
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