9 46

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9_45

9_47

Contents

Image:9 46.gif
(KnotPlot image)

See the full Rolfsen Knot Table.

Visit 9 46's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 9_46's page at Knotilus!

Visit 9 46's page at the original Knot Atlas!

9_46 is also known as the pretzel knot P(3,3,-3).


[edit] Knot presentations

Planar diagram presentation X4251 X7,12,8,13 X10,3,11,4 X2,11,3,12 X5,14,6,15 X13,6,14,7 X15,18,16,1 X9,17,10,16 X17,9,18,8
Gauss code 1, -4, 3, -1, -5, 6, -2, 9, -8, -3, 4, 2, -6, 5, -7, 8, -9, 7
Dowker-Thistlethwaite code 4 10 -14 -12 -16 2 -6 -18 -8
Conway Notation [3,3,21-]


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

Length is 9, width is 4,

Braid index is 4

Image:9 46_ML.gif Image:9 46_AP.gif
[{9, 5}, {3, 8}, {4, 6}, {5, 2}, {1, 4}, {7, 3}, {6, 9}, {2, 7}, {8, 1}]

[edit Notes on presentations of 9 46]


[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number 2
3-genus 1
Bridge index 3
Super bridge index 4
Nakanishi index 2
Maximal Thurston-Bennequin number [-7][-1]
Hyperbolic Volume 4.7517
A-Polynomial See Data:9 46/A-polynomial

[edit Notes for 9 46's three dimensional invariants]

[edit] Four dimensional invariants

Smooth 4 genus 0
Topological 4 genus 0
Concordance genus 0
Rasmussen s-Invariant 0

[edit Notes for 9 46's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial −2t + 5−2t−1
Conway polynomial 1−2z2
2nd Alexander ideal (db, data sources) {3,t + 1}
Determinant and Signature { 9, 0 }
Jones polynomial 2−q−1 + q−2−2q−3 + q−4q−5 + q−6
HOMFLY-PT polynomial (db, data sources) a6z2a4a4z2a2a2 + 2
Kauffman polynomial (db, data sources) a5z7 + a3z7 + a6z6 + 2a4z6 + a2z6−5a5z5−5a3z5−5a6z4−9a4z4−4a2z4 + 7a5z3 + 8a3z3 + az3 + 6a6z2 + 9a4z2 + 3a2z2−4a5z−6a3z−2aza6a4 + a2 + 2
The A2 invariant q20 + q18q12q10q8q6 + q2 + 2 + 2q−2
The G2 invariant q94 + q90q88q82 + 2q80 + 2q70 + q68−3q66 + q62 + 2q60 + 2q58−4q56 + 3q52 + 2q50−2q48−5q46 + 3q42 + 2q40−4q38−3q36 + 3q32−5q28−4q26 + 2q24 + 2q22−2q20q18−3q16 + 3q14 + 2q12q10 + 2q4 + 3q2 + 1 + q−2 + q−4 + 3q−8 + q−10q−12 + q−14

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

Same Alexander/Conway Polynomial: {6_1, K11n67, K11n97, K11n139,}

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

[edit] Vassiliev invariants

V2 and V3: (-2, 3)

[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 = 0 is the signature of 9 46. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-6-5-4-3-2-10χ
1      22
-1      11
-3    11 0
-5   1   -1
-7   1   -1
-9 11    0
-11       0
-131      1
Integral Khovanov Homology

(db, data source)

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

[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_45

9_47

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