L10n42

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L10n41

L10n43

Contents

Image:L10n42.gif
(Knotscape image)
See the full Thistlethwaite Link Table (up to 11 crossings).

Visit L10n42's page at Knotilus.

Visit L10n42's page at the original Knot Atlas.


[edit] Link Presentations

[edit Notes on L10n42's Link Presentations]

Planar diagram presentation X8192 X10,4,11,3 X20,10,7,9 X2738 X15,5,16,4 X5,13,6,12 X16,12,17,11 X6,18,1,17 X19,15,20,14 X13,19,14,18
Gauss code {1, -4, 2, 5, -6, -8}, {4, -1, 3, -2, 7, 6, -10, 9, -5, -7, 8, 10, -9, -3}
A Braid Representative
Image:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart1.gifImage:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart1.gifImage:BraidPart0.gif
Image:BraidPart2.gifImage:BraidPart1.gifImage:BraidPart2.gifImage:BraidPart2.gifImage:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart1.gifImage:BraidPart2.gifImage:BraidPart1.gif
Image:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart2.gifImage:BraidPart0.gifImage:BraidPart2.gif
Image:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gif
A Morse Link Presentation Image:L10n42_ML.gif

[edit] Polynomial invariants

Multivariable Alexander Polynomial (in u, v, w, ...) v2u4 + vu4 + v2u3vu2 + u + v−1 (db)
Jones polynomial q^{15/2}-q^{13/2}+q^{11/2}-2 q^{9/2}+q^{7/2}-2 q^{5/2}+q^{3/2}-\sqrt{q} (db)
Signature 5 (db)
HOMFLY-PT polynomial z7a−5 + z5a−3−6z5a−5 + z5a−7 + 5z3a−3−11z3a−5 + 5z3a−7 + 6za−3−9za−5 + 5za−7za−9 + 2a−3z−1−3a−5z−1 + a−7z−1 (db)
Kauffman polynomial z8a−4z8a−6z7a−3−3z7a−5−2z7a−7 + 5z6a−4 + 4z6a−6z6a−8 + 6z5a−3 + 17z5a−5 + 11z5a−7−5z4a−4 + 5z4a−8−11z3a−3−27z3a−5−16z3a−7−2z2a−4−7z2a−6−5z2a−8 + 8za−3 + 15za−5 + 8za−7 + za−9 + 3a−4 + 3a−6 + a−8−2a−3z−1−3a−5z−1a−7z−1 (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 = 5 is the signature of L10n42. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.    Data:L10n42/KhovanovTable
Integral Khovanov Homology

(db, data source)

  
\dim{\mathcal G}_{2r+i}\operatorname{KH}^r_{\mathbb Z} i = 2 i = 4 i = 6
r = −2 {\mathbb Z}
r = −1 {\mathbb Z}_2 {\mathbb Z}
r = 0 {\mathbb Z}^{2} {\mathbb Z}
r = 1 {\mathbb Z}\oplus{\mathbb Z}_2 {\mathbb Z}
r = 2 {\mathbb Z} {\mathbb Z}^{2}\oplus{\mathbb Z}_2 {\mathbb Z}
r = 3 {\mathbb Z}\oplus{\mathbb Z}_2 {\mathbb Z}
r = 4 {\mathbb Z} {\mathbb Z}\oplus{\mathbb Z}_2 {\mathbb Z}
r = 5 {\mathbb Z} {\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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L10n41

L10n43

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