L9a44

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L9a43

L9a45

Contents

Image:L9a44.gif
(Knotscape image)
See the full Thistlethwaite Link Table (up to 11 crossings).

Visit L9a44's page at Knotilus.

Visit L9a44's page at the original Knot Atlas.


[edit] Link Presentations

[edit Notes on L9a44's Link Presentations]

Planar diagram presentation X6172 X10,3,11,4 X18,14,9,13 X16,12,17,11 X12,18,13,17 X8,16,5,15 X14,8,15,7 X2536 X4,9,1,10
Gauss code {1, -8, 2, -9}, {8, -1, 7, -6}, {9, -2, 4, -5, 3, -7, 6, -4, 5, -3}
A Braid Representative
Image:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart1.gifImage:BraidPart1.gifImage:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart1.gif
Image:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart3.gifImage:BraidPart2.gifImage:BraidPart2.gifImage:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart3.gifImage:BraidPart2.gif
Image:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart3.gifImage:BraidPart4.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart4.gifImage:BraidPart0.gif
Image:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart0.gifImage:BraidPart0.gif
A Morse Link Presentation Image:L9a44_ML.gif

[edit] Polynomial invariants

Multivariable Alexander Polynomial (in u, v, w, ...) 2vu3vwu3 + wu3u3−2vu2 + vwu2−2wu2 + u2 + 2vuvwu + 2wuuv + vw−2w + 1 (db)
Jones polynomial q6 + 3q5−6q4 + 7q3−7q2 + 8q−5 + 5q−1q−2 + q−3 (db)
Signature 2 (db)
HOMFLY-PT polynomial z6a−2 + 4z4a−2z4a−4−2z4 + a2z2 + 7z2a−2−2z2a−4−7z2 + 3a2 + 8a−2−2a−4−9 + 2a2z−2 + 4a−2z−2a−4z−2−5z−2 (db)
Kauffman polynomial z8a−2 + z8 + az7 + 5z7a−1 + 4z7a−3 + a2z6 + 7z6a−2 + 7z6a−4 + z6az5−8z5a−1z5a−3 + 6z5a−5−5a2z4−21z4a−2−11z4a−4 + 3z4a−6−12z4−6az3−11z3a−1−12z3a−3−6z3a−5 + z3a−7 + 9a2z2 + 16z2a−2 + 6z2a−4 + 19z2 + 11az + 21za−1 + 13za−3 + 3za−5−7a2−10a−2−2a−4−14−5az−1−9a−1z−1−5a−3z−1a−5z−1 + 2a2z−2 + 4a−2z−2 + a−4z−2 + 5z−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 = 2 is the signature of L9a44. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.    Data:L9a44/KhovanovTable
Integral Khovanov Homology

(db, data source)

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

[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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L9a43

L9a45

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