Concordance properties of parallel links

Daniel Ruberman; Saso Strle

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arXiv · 1108.4476

Concordance properties of parallel links

Daniel Ruberman·Saso Strle

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Abstract

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 necessarily slice? We show that if P(K) is smoothly concordant to a split link, then many smooth concordance invariants of K must vanish, including the tau and s-invariants, and suitably normalized d-invariants of surgeries on K. We also investigate the (2,2m) cables P_m(K), and find obstructions to smooth concordance to the sum of the (2,2m) torus link and a split link.

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BibTeX RIS

Daniel Ruberman, Saso Strle. 2011-08-23. Concordance properties of parallel links. https://arxiv.org/abs/1108.4476

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