L10a8

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Link Presentations

[edit Notes on L10a8's Link Presentations]

Planar diagram presentation	X6172 X10,4,11,3 X12,8,13,7 X16,10,17,9 X20,17,5,18 X18,13,19,14 X14,19,15,20 X8,16,9,15 X2536 X4,12,1,11
Gauss code	{1, -9, 2, -10}, {9, -1, 3, -8, 4, -2, 10, -3, 6, -7, 8, -4, 5, -6, 7, -5}

A Braid Representative
A Morse Link Presentation

Polynomial invariants

Multivariable Alexander Polynomial (in $u$, $v$, $w$, ...)	$-\frac{(t(1)-1) (t(2)-1) \left(t(2)^4-2 t(2)^3+4 t(2)^2-2 t(2)+1\right)}{\sqrt{t(1)} t(2)^{5/2}}$ (db)
Jones polynomial	$q^{11/2}-3 q^{9/2}+7 q^{7/2}-11 q^{5/2}+12 q^{3/2}-14 \sqrt{q}+\frac{12}{\sqrt{q}}-\frac{10}{q^{3/2}}+\frac{6}{q^{5/2}}-\frac{3}{q^{7/2}}+\frac{1}{q^{9/2}}$ (db)
Signature	1 (db)
HOMFLY-PT polynomial	$-z^7 a^{-1} +2 a z^5-5 z^5 a^{-1} +z^5 a^{-3} -a^3 z^3+7 a z^3-11 z^3 a^{-1} +3 z^3 a^{-3} -2 a^3 z+9 a z-11 z a^{-1} +4 z a^{-3} -a^3 z^{-1} +4 a z^{-1} -4 a^{-1} z^{-1} + a^{-3} z^{-1}$ (db)
Kauffman polynomial	$-a z^9-z^9 a^{-1} -3 a^2 z^8-5 z^8 a^{-2} -8 z^8-3 a^3 z^7-10 a z^7-15 z^7 a^{-1} -8 z^7 a^{-3} -a^4 z^6+3 a^2 z^6-6 z^6 a^{-4} +10 z^6+9 a^3 z^5+35 a z^5+43 z^5 a^{-1} +14 z^5 a^{-3} -3 z^5 a^{-5} +3 a^4 z^4+9 a^2 z^4+14 z^4 a^{-2} +7 z^4 a^{-4} -z^4 a^{-6} +12 z^4-9 a^3 z^3-35 a z^3-43 z^3 a^{-1} -15 z^3 a^{-3} +2 z^3 a^{-5} -3 a^4 z^2-12 a^2 z^2-15 z^2 a^{-2} -5 z^2 a^{-4} +z^2 a^{-6} -18 z^2+4 a^3 z+17 a z+21 z a^{-1} +8 z a^{-3} +a^4+4 a^2+4 a^{-2} + a^{-4} +7-a^3 z^{-1} -4 a z^{-1} -4 a^{-1} z^{-1} - a^{-3} z^{-1}$ (db)

Khovanov Homology

The coefficients of the monomials $t^rq^j$ are shown, along with their alternating sums $\chi$ (fixed $j$, alternation over $r$).

\   r    \    j   \ -5 -4 -3 -2 -1 0 1 2 3 4 5 χ 12                     1 -1 10                   2   2 8                 5 1   -4 6               6 2     4 4             6 5       -1 2           8 6         2 0         6 8           2 -2       4 6             -2 -4     2 6               4 -6   1 4                 -3 -8   2                   2 -10 1                     -1

Integral Khovanov Homology (db, data source)

$\dim{\mathcal G}_{2r+i}\operatorname{KH}^r_{\mathbb Z}$ $i=0$ $i=2$ $r=-5$ ${\mathbb Z}$ $r=-4$ ${\mathbb Z}^{2}\oplus{\mathbb Z}_2$ ${\mathbb Z}$ $r=-3$ ${\mathbb Z}^{4}\oplus{\mathbb Z}_2^{2}$ ${\mathbb Z}^{2}$ $r=-2$ ${\mathbb Z}^{6}\oplus{\mathbb Z}_2^{4}$ ${\mathbb Z}^{4}$ $r=-1$ ${\mathbb Z}^{6}\oplus{\mathbb Z}_2^{6}$ ${\mathbb Z}^{6}$ $r=0$ ${\mathbb Z}^{8}\oplus{\mathbb Z}_2^{6}$ ${\mathbb Z}^{8}$ $r=1$ ${\mathbb Z}^{6}\oplus{\mathbb Z}_2^{6}$ ${\mathbb Z}^{6}$ $r=2$ ${\mathbb Z}^{5}\oplus{\mathbb Z}_2^{6}$ ${\mathbb Z}^{6}$ $r=3$ ${\mathbb Z}^{2}\oplus{\mathbb Z}_2^{5}$ ${\mathbb Z}^{5}$ $r=4$ ${\mathbb Z}\oplus{\mathbb Z}_2^{2}$ ${\mathbb Z}^{2}$ $r=5$ ${\mathbb Z}_2$ ${\mathbb Z}$

Computer Talk

Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session.

Modifying This Page

Read me first: Modifying Knot Pages See/edit the Link Page master template (intermediate). See/edit the Link_Splice_Base (expert). Back to the top.

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