9 11

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Image:9 11.gif
(KnotPlot image)

See the full Rolfsen Knot Table.

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Visit 9_11's page at Knotilus!

Visit 9 11's page at the original Knot Atlas!


[edit] Knot presentations

Planar diagram presentation X1425 X9,12,10,13 X3,11,4,10 X11,3,12,2 X13,1,14,18 X5,15,6,14 X7,17,8,16 X15,7,16,6 X17,9,18,8
Gauss code -1, 4, -3, 1, -6, 8, -7, 9, -2, 3, -4, 2, -5, 6, -8, 7, -9, 5
Dowker-Thistlethwaite code 4 10 14 16 12 2 18 6 8
Conway Notation [4122]


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

Length is 9, width is 4,

Braid index is 4

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

[edit Notes on presentations of 9 11]


[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number 2
3-genus 3
Bridge index 2
Super bridge index {4,6}
Nakanishi index 1
Maximal Thurston-Bennequin number [1][-12]
Hyperbolic Volume 8.28859
A-Polynomial See Data:9 11/A-polynomial

[edit Notes for 9 11's three dimensional invariants]

[edit] Four dimensional invariants

Smooth 4 genus 2
Topological 4 genus 2
Concordance genus 3
Rasmussen s-Invariant 4

[edit Notes for 9 11's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial t3 + 5t2−7t + 7−7t−1 + 5t−2t−3
Conway polynomial z6z4 + 4z2 + 1
2nd Alexander ideal (db, data sources) {1}
Determinant and Signature { 33, 4 }
Jones polynomial q9 + 2q8−4q7 + 5q6−5q5 + 6q4−4q3 + 3q2−2q + 1
HOMFLY-PT polynomial (db, data sources) z6a−4 + z4a−2−4z4a−4 + 2z4a−6 + 3z2a−2−4z2a−4 + 6z2a−6z2a−8 + a−2a−4 + 3a−6−2a−8
Kauffman polynomial (db, data sources) z8a−4 + z8a−6 + 2z7a−3 + 4z7a−5 + 2z7a−7 + z6a−2z6a−4 + z6a−6 + 3z6a−8−8z5a−3−12z5a−5z5a−7 + 3z5a−9−4z4a−2−5z4a−4−7z4a−6−4z4a−8 + 2z4a−10 + 8z3a−3 + 9z3a−5−3z3a−7−3z3a−9 + z3a−11 + 4z2a−2 + 5z2a−4 + 6z2a−6 + 4z2a−8z2a−10za−3−2za−5 + 2za−7 + 2za−9za−11a−2a−4−3a−6−2a−8
The A2 invariant 1−q−8 + 2q−10 + 2q−14 + q−16 + q−20q−22q−26q−28
The G2 invariant q−2q−4 + 3q−6−4q−8 + 3q−10q−12−2q−14 + 10q−16−12q−18 + 13q−20−7q−22−2q−24 + 10q−26−17q−28 + 17q−30−12q−32 + 2q−34 + 8q−36−13q−38 + 12q−40−7q−42−2q−44 + 7q−46−8q−48 + 4q−50q−52−5q−54 + 16q−56−12q−58 + 10q−60q−62−8q−64 + 19q−66−20q−68 + 18q−70−9q−72 + 16q−76−19q−78 + 17q−80−8q−82−2q−84 + 8q−86−10q−88 + 4q−90−4q−94 + 7q−96−6q−98 + 3q−102−10q−104 + 10q−106−9q−108 + 4q−110q−112−4q−114 + 8q−116−11q−118 + 11q−120−7q−122 + 2q−124 + q−126−6q−128 + 6q−130−6q−132 + 5q−134−2q−136 + q−140−2q−142 + 2q−144q−146 + q−148

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

Same Alexander/Conway Polynomial: {K11n95,}

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

[edit] Vassiliev invariants

V2 and V3: (4, 9)

[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 11. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-2-101234567χ
19         1-1
17        1 1
15       31 -2
13      21  1
11     33   0
9    32    1
7   13     2
5  23      -1
3 12       1
1 1        -1
-11         1
Integral Khovanov Homology

(db, data source)

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