L10a28

L10a27

L10a29

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Link Presentations

[edit Notes on L10a28's Link Presentations]

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

A Braid Representative
A Morse Link Presentation

Polynomial invariants

Multivariable Alexander Polynomial (in $u$, $v$, $w$, ...)	$\frac{(t(1)-1) (t(2)-1) \left(t(2)^2-t(2)+1\right)^2}{\sqrt{t(1)} t(2)^{5/2}}$ (db)
Jones polynomial	$-q^{7/2}+3 q^{5/2}-6 q^{3/2}+8 \sqrt{q}-\frac{12}{\sqrt{q}}+\frac{12}{q^{3/2}}-\frac{11}{q^{5/2}}+\frac{9}{q^{7/2}}-\frac{6}{q^{9/2}}+\frac{3}{q^{11/2}}-\frac{1}{q^{13/2}}$ (db)
Signature	-1 (db)
HOMFLY-PT polynomial	$a^5 z^3+2 a^5 z+a^5 z^{-1} -2 a^3 z^5-7 a^3 z^3-8 a^3 z-3 a^3 z^{-1} +a z^7+5 a z^5-z^5 a^{-1} +10 a z^3-3 z^3 a^{-1} +9 a z-3 z a^{-1} +4 a z^{-1} -2 a^{-1} z^{-1}$ (db)
Kauffman polynomial	$-a^3 z^9-a z^9-3 a^4 z^8-7 a^2 z^8-4 z^8-4 a^5 z^7-8 a^3 z^7-9 a z^7-5 z^7 a^{-1} -3 a^6 z^6+13 a^2 z^6-3 z^6 a^{-2} +7 z^6-a^7 z^5+6 a^5 z^5+24 a^3 z^5+31 a z^5+13 z^5 a^{-1} -z^5 a^{-3} +6 a^6 z^4+9 a^4 z^4-7 a^2 z^4+6 z^4 a^{-2} -4 z^4+2 a^7 z^3-a^5 z^3-28 a^3 z^3-40 a z^3-13 z^3 a^{-1} +2 z^3 a^{-3} -3 a^6 z^2-8 a^4 z^2-5 a^2 z^2-z^2 a^{-2} -z^2-a^7 z+2 a^5 z+15 a^3 z+19 a z+7 z a^{-1} +a^6+3 a^4+3 a^2+2-a^5 z^{-1} -3 a^3 z^{-1} -4 a z^{-1} -2 a^{-1} z^{-1}$ (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   \ -6 -5 -4 -3 -2 -1 0 1 2 3 4 χ 8                     1 1 6                   2   -2 4                 4 1   3 2               4 2     -2 0             8 4       4 -2           6 6         0 -4         5 6           -1 -6       4 6             2 -8     2 5               -3 -10   1 4                 3 -12   2                   -2 -14 1                     1

Integral Khovanov Homology (db, data source)

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

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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