9 9

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Image:9 9.gif
(KnotPlot image)

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


[edit] Knot presentations

Planar diagram presentation X1627 X3,12,4,13 X7,16,8,17 X9,18,10,1 X17,8,18,9 X15,10,16,11 X5,14,6,15 X11,2,12,3 X13,4,14,5
Gauss code -1, 8, -2, 9, -7, 1, -3, 5, -4, 6, -8, 2, -9, 7, -6, 3, -5, 4
Dowker-Thistlethwaite code 6 12 14 16 18 2 4 10 8
Conway Notation [423]


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

Length is 10, width is 3,

Braid index is 3

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

[edit Notes on presentations of 9 9]


[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number 3
3-genus 3
Bridge index 2
Super bridge index {4,6}
Nakanishi index 1
Maximal Thurston-Bennequin number [-16][5]
Hyperbolic Volume 8.01682
A-Polynomial See Data:9 9/A-polynomial

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

[edit] Four dimensional invariants

Smooth 4 genus 3
Topological 4 genus 3
Concordance genus 3
Rasmussen s-Invariant -6

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

[edit] Polynomial invariants

Alexander polynomial 2t3−4t2 + 6t−7 + 6t−1−4t−2 + 2t−3
Conway polynomial 2z6 + 8z4 + 8z2 + 1
2nd Alexander ideal (db, data sources) {1}
Determinant and Signature { 31, -6 }
Jones polynomial q−3q−4 + 3q−5−4q−6 + 5q−7−5q−8 + 5q−9−4q−10 + 2q−11q−12
HOMFLY-PT polynomial (db, data sources) z4a10−3z2a10−2a10 + z6a8 + 4z4a8 + 4z2a8 + a8 + z6a6 + 5z4a6 + 7z2a6 + 2a6
Kauffman polynomial (db, data sources) z3a15za15 + 2z4a14z2a14 + 3z5a13−3z3a13 + 2za13 + 3z6a12−4z4a12 + 3z2a12 + 2z7a11−2z5a11 + z8a10z6a10 + 2z4a10−6z2a10 + 2a10 + 3z7a9−8z5a9 + 5z3a9−2za9 + z8a8−3z6a8 + 3z4a8−3z2a8 + a8 + z7a7−3z5a7 + z3a7 + za7 + z6a6−5z4a6 + 7z2a6−2a6
The A2 invariant q36q32q30q26 + 2q24 + q20 + q18 + 2q14 + q10
The G2 invariant q196q194 + 2q192−2q190 + q188−2q184 + 5q182−6q180 + 6q178−6q176 + 2q174 + 3q172−7q170 + 12q168−11q166 + 9q164−5q162−2q160 + 6q158−11q156 + 11q154−7q152 + 3q148−7q146 + 5q144q142−8q140 + 9q138−12q136 + 5q134 + 5q132−15q130 + 20q128−18q126 + 10q124 + q122−12q120 + 18q118−18q116 + 14q114−4q112−4q110 + 11q108−10q106 + 7q104−2q102−5q100 + 8q98−8q96 + 2q94 + 6q92−11q90 + 16q88−11q86 + q84 + 7q82−11q80 + 16q78−12q76 + 6q74 + 2q72−5q70 + 10q68−7q66 + 5q64 + 2q58−2q56 + 2q54 + q50

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

Same Alexander/Conway Polynomial: {}

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

[edit] Vassiliev invariants

V2 and V3: (8, -22)
V2,1 through V6,9:
V2,1 V3,1 V4,1 V4,2 V4,3 V5,1 V5,2 V5,3 V5,4 V6,1 V6,2 V6,3 V6,4 V6,5 V6,6 V6,7 V6,8 V6,9
32 −176 512 \frac{3760}{3} \frac{560}{3} −5632 -\frac{29696}{3} -\frac{5216}{3} −1264 \frac{16384}{3} 15488 \frac{120320}{3} \frac{17920}{3} \frac{1196284}{15} \frac{40544}{15} \frac{1354096}{45} \frac{4628}{9} \frac{57964}{15}

V2,1 through V6,9 were provided by Petr Dunin-Barkowski <barkovs@itep.ru>, Andrey Smirnov <asmirnov@itep.ru>, and Alexei Sleptsov <sleptsov@itep.ru> and uploaded on October 2010 by User:Drorbn. Note that they are normalized differently than V2 and V3.

[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 = -6 is the signature of 9 9. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-9-8-7-6-5-4-3-2-10χ
-5         11
-7        110
-9       2  2
-11      21  -1
-13     32   1
-15    22    0
-17   33     0
-19  12      1
-21 13       -2
-23 1        1
-251         -1
Integral Khovanov Homology

(db, data source)

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