9 39

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Contents

Image:9 39.gif
(KnotPlot image)

See the full Rolfsen Knot Table.

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Visit 9 39's page at the original Knot Atlas!


[edit] Knot presentations

Planar diagram presentation X1627 X3,11,4,10 X7,18,8,1 X17,13,18,12 X9,17,10,16 X5,15,6,14 X15,5,16,4 X11,3,12,2 X13,9,14,8
Gauss code -1, 8, -2, 7, -6, 1, -3, 9, -5, 2, -8, 4, -9, 6, -7, 5, -4, 3
Dowker-Thistlethwaite code 6 10 14 18 16 2 8 4 12
Conway Notation [2:2:20]


Minimum Braid Representative A Morse Link Presentation An Arc Presentation
Image:BraidPart1.gifImage:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart1.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gif
Image:BraidPart2.gifImage:BraidPart2.gifImage:BraidPart1.gifImage:BraidPart4.gifImage:BraidPart3.gifImage:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart0.gifImage:BraidPart0.gif
Image:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart3.gifImage:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart0.gif
Image:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart4.gifImage:BraidPart1.gifImage:BraidPart2.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart1.gif
Image:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart2.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart0.gifImage:BraidPart2.gif

Length is 12, width is 5,

Braid index is 5

Image:9 39_ML.gif Image:9 39_AP.gif
[{11, 6}, {2, 7}, {6, 1}, {8, 3}, {5, 2}, {7, 9}, {4, 8}, {10, 5}, {9, 11}, {3, 10}, {1, 4}]

[edit Notes on presentations of 9 39]


[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number 1
3-genus 2
Bridge index 3
Super bridge index {4,6}
Nakanishi index 1
Maximal Thurston-Bennequin number [-1][-10]
Hyperbolic Volume 12.8103
A-Polynomial See Data:9 39/A-polynomial

[edit Notes for 9 39's three dimensional invariants]

[edit] Four dimensional invariants

Smooth 4 genus 1
Topological 4 genus 1
Concordance genus 2
Rasmussen s-Invariant 2

[edit Notes for 9 39's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial −3t2 + 14t−21 + 14t−1−3t−2
Conway polynomial −3z4 + 2z2 + 1
2nd Alexander ideal (db, data sources) {1}
Determinant and Signature { 55, 2 }
Jones polynomial q8 + 3q7−6q6 + 8q5−9q4 + 10q3−8q2 + 6q−3 + q−1
HOMFLY-PT polynomial (db, data sources) z4a−2−2z4a−4 + z2a−2−3z2a−4 + 3z2a−6 + z2 + 2a−2−2a−4 + 2a−6a−8
Kauffman polynomial (db, data sources) 2z8a−4 + 2z8a−6 + 5z7a−3 + 9z7a−5 + 4z7a−7 + 5z6a−2 + 5z6a−4 + 3z6a−6 + 3z6a−8 + 3z5a−1−7z5a−3−18z5a−5−7z5a−7 + z5a−9−7z4a−2−15z4a−4−13z4a−6−6z4a−8 + z4−3z3a−1 + 5z3a−3 + 12z3a−5 + 2z3a−7−2z3a−9 + 5z2a−2 + 12z2a−4 + 9z2a−6 + 3z2a−8z2za−3−3za−5za−7 + za−9−2a−2−2a−4−2a−6a−8
The A2 invariant q4q2−1 + 3q−2q−4 + 2q−6 + q−8q−10 + q−12−2q−14 + 2q−16q−20 + 2q−22q−24q−26
The G2 invariant q18−2q16 + 4q14−6q12 + 5q10−3q8−2q6 + 12q4−19q2 + 28−30q−2 + 21q−4−3q−6−27q−8 + 58q−10−76q−12 + 73q−14−45q−16−6q−18 + 63q−20−97q−22 + 101q−24−61q−26 + 2q−28 + 53q−30−80q−32 + 65q−34−12q−36−45q−38 + 87q−40−83q−42 + 36q−44 + 37q−46−103q−48 + 134q−50−123q−52 + 66q−54 + 10q−56−84q−58 + 131q−60−134q−62 + 95q−64−29q−66−43q−68 + 87q−70−93q−72 + 59q−74−52q−78 + 80q−80−61q−82 + 8q−84 + 57q−86−100q−88 + 103q−90−65q−92q−94 + 60q−96−93q−98 + 95q−100−63q−102 + 19q−104 + 19q−106−45q−108 + 45q−110−33q−112 + 17q−114−3q−116−6q−118 + 8q−120−8q−122 + 5q−124−2q−126 + q−128

[edit] "Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {K11n162,}

Same Jones Polynomial (up to mirroring, q\leftrightarrow q^{-1}): {K11n11, K11n112,}

[edit] Vassiliev invariants

V2 and V3: (2, 4)

[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 9 39. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-2-101234567χ
17         1-1
15        2 2
13       41 -3
11      42  2
9     54   -1
7    54    1
5   35     2
3  35      -2
1 14       3
-1 2        -2
-31         1
Integral Khovanov Homology

(db, data source)

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

[edit] The Coloured Jones Polynomials

[edit] Computer Talk

Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session, or any of the Computer Talk sections above.

[edit] Modifying This Page

Read me first: Modifying Knot Pages

See/edit the Rolfsen Knot Page master template (intermediate).

See/edit the Rolfsen_Splice_Base (expert).

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