9 45

From Knot Atlas

Jump to: navigation, search


9_44

9_46

Contents

Image:9 45.gif
(KnotPlot image)

See the full Rolfsen Knot Table.

Visit 9 45's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 9_45's page at Knotilus!

Visit 9 45's page at the original Knot Atlas!


[edit] Knot presentations

Planar diagram presentation X4251 X10,6,11,5 X8394 X2,9,3,10 X7,14,8,15 X18,15,1,16 X16,11,17,12 X12,17,13,18 X13,6,14,7
Gauss code 1, -4, 3, -1, 2, 9, -5, -3, 4, -2, 7, -8, -9, 5, 6, -7, 8, -6
Dowker-Thistlethwaite code 4 8 10 -14 2 16 -6 18 12
Conway Notation [211,21,2-]


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

Length is 9, width is 4,

Braid index is 4

Image:9 45_ML.gif Image:9 45_AP.gif
[{2, 11}, {1, 7}, {10, 4}, {11, 9}, {6, 8}, {7, 10}, {3, 5}, {4, 6}, {5, 2}, {8, 3}, {9, 1}]

[edit Notes on presentations of 9 45]

Knot 9_45.
Knot 9_45.
A graph, knot 9_45.
A graph, knot 9_45.
A part of a knot and a part of a graph.
A part of a knot and a part of a graph.

[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number 1
3-genus 2
Bridge index 3
Super bridge index {4,5}
Nakanishi index 1
Maximal Thurston-Bennequin number [-10][1]
Hyperbolic Volume 8.60203
A-Polynomial See Data:9 45/A-polynomial

[edit Notes for 9 45'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 45's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial t2 + 6t−9 + 6t−1t−2
Conway polynomial z4 + 2z2 + 1
2nd Alexander ideal (db, data sources) {1}
Determinant and Signature { 23, -2 }
Jones polynomial 2q−1−3q−2 + 4q−3−4q−4 + 4q−5−3q−6 + 2q−7q−8
HOMFLY-PT polynomial (db, data sources) a8 + 2z2a6 + 2a6z4a4−2z2a4−2a4 + 2z2a2 + 2a2
Kauffman polynomial (db, data sources) z5a9−3z3a9 + 2za9 + 2z6a8−6z4a8 + 4z2a8a8 + z7a7−5z3a7 + 2za7 + 4z6a6−10z4a6 + 7z2a6−2a6 + z7a5z3a5 + 2z6a4−4z4a4 + 6z2a4−2a4 + z5a3 + z3a3 + 3z2a2−2a2
The A2 invariant q26q24 + q22 + q18 + q16q14q10 + q8 + q6 + 2q2
The G2 invariant q128q126 + 3q124−4q122 + 2q120−5q116 + 9q114−10q112 + 8q110−3q108−7q106 + 10q104−12q102 + 8q100−3q98−6q96 + 9q94−7q92 + 2q90 + 6q88−9q86 + 10q84−4q82−2q80 + 9q78−12q76 + 15q74−9q72 + 3q70 + 7q68−12q66 + 14q64−12q62 + 5q60 + 2q58−9q56 + 9q54−8q52 + q50 + 6q48−10q46 + 6q44q42−7q40 + 11q38−11q36 + 8q34−5q30 + 9q28−8q26 + 8q24q22q20 + 2q18−2q16 + 3q14q12 + 2q10 + q8

[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: (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 45. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-7-6-5-4-3-2-10χ
-1       22
-3      21-1
-5     21 1
-7    22  0
-9   22   0
-11  12    1
-13 12     -1
-15 1      1
-171       -1
Integral Khovanov Homology

(db, data source)

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

Back to the top.

9_44

9_46

Retrieved from "http://katlas.org/wiki/9_45"
Personal tools