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LENS SPACE SURGERIES ALONG CERTAIN 2-COMPONENT LINKS RELATED WITH PARK’S RATIONAL BLOW DOWN, AND REIDEMEISTER-TURAEV TORSION
Published online by Cambridge University Press: 15 October 2013
Abstract
We study lens space surgeries along two different families of 2-component links, denoted by ${A}_{m, n} $ and
${B}_{p, q} $, related with the rational homology
$4$-ball used in J. Park’s (generalized) rational blow down. We determine which coefficient
$r$ of the knotted component of the link yields a lens space by Dehn surgery. The link
${A}_{m, n} $ yields a lens space only by the known surgery with
$r= mn$ and unexpectedly with
$r= 7$ for
$(m, n)= (2, 3)$. On the other hand,
${B}_{p, q} $ yields a lens space by infinitely many
$r$. Our main tool for the proof are the Reidemeister-Turaev torsions, that is, Reidemeister torsions with combinatorial Euler structures. Our results can be extended to the links whose Alexander polynomials are same as those of
${A}_{m, n} $ and
${B}_{p, q} $.
Keywords
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- Research Article
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- Copyright
- Copyright ©2013 Australian Mathematical Publishing Association Inc.
References
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