L9n17

(Knotscape image)

See the full Thistlethwaite Link Table (up to 11 crossings).

Visit L9n17's page at the original Knot Atlas.

Planar diagram presentation	X₈₁₉₂ X_2,9,3,10 X_10,3,11,4 X_7,14,8,15 X_13,18,14,7 X_17,1,18,6 X_16,11,17,12 X_5,12,6,13 X_4,16,5,15
Gauss code	{1, -2, 3, -9, -8, 6}, {-4, -1, 2, -3, 7, 8, -5, 4, 9, -7, -6, 5}

A Braid Representative

A Morse Link Presentation

Multivariable Alexander Polynomial (in $u$ , $v$ , $w$ , ...)	$- v 2 u 2 + 2 v u 2 + v 2 u -3 v u + u + 2 v -1$ (db)
Jones polynomial	$-\frac{2}{q^{3/2}}+\frac{2}{q^{5/2}}-\frac{4}{q^{7/2}}+\frac{4}{q^{9/2}}-\frac{4}{q^{11/2}}+\frac{3}{q^{13/2}}-\frac{2}{q^{15/2}}+\frac{1}{q^{17/2}}$ (db)
Signature	-3 (db)
HOMFLY-PT polynomial	$- z 3 a 7 -2 z a 7 - a 7 z -1 + z 5 a 5 + 4 z 3 a 5 + 6 z a 5 + 3 a 5 z -1 -2 z 3 a 3 -5 z a 3 -2 a 3 z -1$ (db)
Kauffman polynomial	$- z 4 a 10 + 2 z 2 a 10 -2 z 5 a 9 + 4 z 3 a 9 - z a 9 -2 z 6 a 8 + 4 z 4 a 8 -3 z 2 a 8 + a 8 - z 7 a 7 + z 5 a 7 -2 z 3 a 7 + 2 z a 7 - a 7 z -1 -3 z 6 a 6 + 7 z 4 a 6 -9 z 2 a 6 + 3 a 6 - z 7 a 5 + 3 z 5 a 5 -9 z 3 a 5 + 9 z a 5 -3 a 5 z -1 - z 6 a 4 + 2 z 4 a 4 -4 z 2 a 4 + 3 a 4 -3 z 3 a 3 + 6 z a 3 -2 a 3 z -1$ (db)

The coefficients of the monomials

t r q j

are shown, along with their alternating sums

χ

(fixed

j

, alternation over

r

). The squares with yellow highlighting are those on the "critical diagonals", where

j -2 r = s + 1

j -2 r = s -1

, where

s =

-3 is the signature of L9n17. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

$\dim{\mathcal G}_{2r+i}\operatorname{KH}^r_{\mathbb Z}$	$i = -4$	$i = -2$
$r = -7$	${\mathbb Z}$
$r = -6$	${\mathbb Z}\oplus{\mathbb Z}_2$	${\mathbb Z}$
$r = -5$	${\mathbb Z}^{2}\oplus{\mathbb Z}_2$	${\mathbb Z}$
$r = -4$	${\mathbb Z}^{2}\oplus{\mathbb Z}_2^{2}$	${\mathbb Z}^{2}$
$r = -3$	${\mathbb Z}^{2}\oplus{\mathbb Z}_2^{2}$	${\mathbb Z}^{2}$
$r = -2$	${\mathbb Z}^{2}\oplus{\mathbb Z}_2^{2}$	${\mathbb Z}^{3}$
$r = -1$	${\mathbb Z}\oplus{\mathbb Z}_2$	${\mathbb Z}$
$r = 0$	${\mathbb Z}\oplus{\mathbb Z}_2$	${\mathbb Z}^{2}$