L9n24

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L9n23

L9n25

Contents

Image:L9n24.gif
(Knotscape image)
See the full Thistlethwaite Link Table (up to 11 crossings).

Visit L9n24's page at Knotilus.

Visit L9n24's page at the original Knot Atlas.


[edit] Link Presentations

[edit Notes on L9n24's Link Presentations]

Planar diagram presentation X6172 X5,12,6,13 X3849 X2,14,3,13 X14,7,15,8 X11,16,12,17 X9,11,10,18 X17,5,18,10 X15,1,16,4
Gauss code {1, -4, -3, 9}, {-2, -1, 5, 3, -7, 8}, {-6, 2, 4, -5, -9, 6, -8, 7}
A Braid Representative
Image:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gif
Image:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart4.gifImage:BraidPart3.gifImage:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart3.gif
Image:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart4.gif
Image:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart0.gif
A Morse Link Presentation Image:L9n24_ML.gif

[edit] Polynomial invariants

Multivariable Alexander Polynomial (in u, v, w, ...) vwu2 + wu2 + v2u−2vu + 2vwuwuv2 + v (db)
Jones polynomial 2q2−2q + 4−3q−1 + 4q−2−2q−3 + 2q−4q−5 (db)
Signature 0 (db)
HOMFLY-PT polynomial z2a4a4 + z4a2 + 3z2a2 + a2z−2 + 4a2−3z2−2z−2−5 + a−2z−2 + 2a−2 (db)
Kauffman polynomial a3z7 + az7 + 2a4z6 + 4a2z6 + 2z6 + a5z5a3z5az5 + z5a−1−7a4z4−14a2z4−7z4−3a5z3−4a3z3−2az3z3a−1 + 6a4z2 + 17a2z2 + 3z2a−2 + 14z2 + a5z + 3a3z + 5az + 3za−1−2a4−8a2−4a−2−9−2az−1−2a−1z−1 + a2z−2 + a−2z−2 + 2z−2 (db)

[edit] Khovanov Homology

The coefficients of the monomials trqj 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−2r = s + 1 or j−2r = s−1, where s = 0 is the signature of L9n24. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.    Data:L9n24/KhovanovTable
Integral Khovanov Homology

(db, data source)

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

[edit] Computer Talk

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

[edit] Modifying This Page

Read me first: Modifying Knot Pages

See/edit the Link Page master template (intermediate).

See/edit the Link_Splice_Base (expert).

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