An infinite family of Legendrian torus knots distinguished by cube number

Details An infinite family of Legendrian torus knots distinguished by cube number An infinite family of Legendrian torus knots distinguished by cube number

2010-12-20

arxiv.org/abs/1012.4482v1

Mathematics

Geometric Topology

19 pages

Scientific paper

For a knot $K$ the cube number is a knot invariant defined to be the smallest $n$ for which there is a cube diagram of size $n$ for $K$. There is also a Legendrian version of this invariant called the \emph{Legendrian cube number}. We will show that the Legendrian cube number distinguishes the Legendrian left hand torus knots with maximal Thurston-Bennequin number and maximal rotation number from the Legendrian left hand torus knots with maximal Thurston-Bennequin number and minimal rotation number.

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