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Ribbon concordance of surface-knots via quandle cocycle invariants
Published online by Cambridge University Press: 09 April 2009
Abstract
We give necessary conditions of a surface-knot to be ribbon concordant to another, by introducing a new variant of the cocycle invariant of surface-knots in addition to using the invariant already known. We demonstrate that twist-spins of some torus knots are not ribbon concordant to their orientation reversed images.
MSC classification
- Type
- Research Article
- Information
- Journal of the Australian Mathematical Society , Volume 80 , Issue 1 , February 2006 , pp. 131 - 147
- Copyright
- Copyright © Australian Mathematical Society 2006
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