Volume: 20, Issue: 7(2009)
pp. 883-913 DOI: 10.1142/S0129167X09005583
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Full Text (PDF, 458KB)
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| Title: |
INVARIANTS OF KNOTS DERIVED FROM EQUIVARIANT LINKING MATRICES OF THEIR SURGERY PRESENTATIONS |
| Author(s): |
TOMOTADA OHTSUKI
Research Institute for Mathematical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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| Dedication: |
Dedicated to Professor Akio Kawauchi on the Occasion of His 60th Birthday |
| History: |
Received 9 November 2007
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| Abstract: |
The quantum U(1) invariant of a closed 3-manifold M is defined from the linking matrix of a framed link of a surgery presentation of M. As an equivariant version of it, we formulate an invariant of a knot K from the equivariant linking matrix of a lift of a framed link of a surgery presentation of K. We show that this invariant is determined by the Blanchfield pairing of K, or equivalently, determined by the S-equivalent class of a Seifert matrix of K, and that the "product" of this invariant and its complex conjugation is presented by the Alexander module of K. We present some values of this invariant of some classes of knots concretely. |
| Keywords: |
Knot; invariant; equivariant linking matrix; quantum U(1) invariant
AMSC numbers:
57M25, 57M27
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