9 38

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9_37

9_39

Contents

Image:9 38.gif
(KnotPlot image)

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[edit] Knot presentations

Planar diagram presentation X1627 X5,14,6,15 X7,18,8,1 X15,8,16,9 X3,10,4,11 X9,4,10,5 X17,12,18,13 X11,16,12,17 X13,2,14,3
Gauss code -1, 9, -5, 6, -2, 1, -3, 4, -6, 5, -8, 7, -9, 2, -4, 8, -7, 3
Dowker-Thistlethwaite code 6 10 14 18 4 16 2 8 12
Conway Notation [.2.2.2]


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

Length is 11, width is 4,

Braid index is 4

Image:9 38_ML.gif Image:9 38_AP.gif
[{11, 4}, {3, 9}, {4, 2}, {5, 10}, {6, 3}, {8, 5}, {1, 6}, {9, 7}, {2, 8}, {7, 11}, {10, 1}]

[edit Notes on presentations of 9 38]


[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number {2,3}
3-genus 2
Bridge index 3
Super bridge index {4,7}
Nakanishi index 2
Maximal Thurston-Bennequin number [-14][3]
Hyperbolic Volume 12.9329
A-Polynomial See Data:9 38/A-polynomial

[edit Notes for 9 38's three dimensional invariants]

[edit] Four dimensional invariants

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

[edit Notes for 9 38's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial 5t2−14t + 19−14t−1 + 5t−2
Conway polynomial 5z4 + 6z2 + 1
2nd Alexander ideal (db, data sources) {1}
Determinant and Signature { 57, -4 }
Jones polynomial q−2−3q−3 + 7q−4−8q−5 + 10q−6−10q−7 + 8q−8−6q−9 + 3q−10q−11
HOMFLY-PT polynomial (db, data sources) z2a10 + z4a8z2a8−3a8 + 3z4a6 + 7z2a6 + 4a6 + z4a4 + z2a4
Kauffman polynomial (db, data sources) z5a13−2z3a13 + za13 + 3z6a12−6z4a12 + 3z2a12 + 4z7a11−7z5a11 + 3z3a11za11 + 2z8a10 + 3z6a10−10z4a10 + 3z2a10 + 9z7a9−15z5a9 + 5z3a9 + za9 + 2z8a8 + 6z6a8−15z4a8 + 10z2a8−3a8 + 5z7a7−4z5a7−2z3a7 + 3za7 + 6z6a6−10z4a6 + 9z2a6−4a6 + 3z5a5−2z3a5 + z4a4z2a4
The A2 invariant q34 + q32 + q30−3q28−2q24q22 + 2q20 + 4q16 + q12 + 2q10−2q8 + q6
The G2 invariant q176−2q174 + 5q172−8q170 + 8q168−6q166−2q164 + 18q162−33q160 + 47q158−46q156 + 21q154 + 16q152−65q150 + 101q148−104q146 + 70q144−6q142−63q140 + 112q138−116q136 + 77q134−8q132−60q130 + 87q128−70q126 + 15q124 + 52q122−95q120 + 98q118−56q116−20q114 + 93q112−152q110 + 153q108−105q106 + 19q104 + 69q102−137q100 + 159q98−125q96 + 52q94 + 26q92−90q90 + 105q88−66q86 + q84 + 64q82−84q80 + 67q78−9q76−58q74 + 106q72−112q70 + 82q68−20q66−43q64 + 89q62−94q60 + 77q58−36q56 + 25q52−40q50 + 37q48−25q46 + 13q44−5q40 + 6q38−6q36 + 4q34−2q32 + q30

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

Same Alexander/Conway Polynomial: {10_63,}

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

[edit] Vassiliev invariants

V2 and V3: (6, -14)

[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 = -4 is the signature of 9 38. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-9-8-7-6-5-4-3-2-10χ
-3         11
-5        31-2
-7       4  4
-9      43  -1
-11     64   2
-13    44    0
-15   46     -2
-17  24      2
-19 14       -3
-21 2        2
-231         -1
Integral Khovanov Homology

(db, data source)

  
\dim{\mathcal G}_{2r+i}\operatorname{KH}^r_{\mathbb Z} i = −5 i = −3
r = −9 {\mathbb Z}
r = −8 {\mathbb Z}^{2}\oplus{\mathbb Z}_2 {\mathbb Z}
r = −7 {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{2} {\mathbb Z}^{2}
r = −6 {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{4} {\mathbb Z}^{4}
r = −5 {\mathbb Z}^{6}\oplus{\mathbb Z}_2^{4} {\mathbb Z}^{4}
r = −4 {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{6} {\mathbb Z}^{6}
r = −3 {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{4} {\mathbb Z}^{4}
r = −2 {\mathbb Z}^{3}\oplus{\mathbb Z}_2^{4} {\mathbb Z}^{4}
r = −1 {\mathbb Z}_2^{3} {\mathbb Z}^{3}
r = 0 {\mathbb Z} {\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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9_39

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