10 20

From Knot Atlas

Jump to: navigation, search


10_19

10_21

Contents

Image:10 20.gif
(KnotPlot image)

See the full Rolfsen Knot Table.

Visit 10 20's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 10_20's page at Knotilus!

Visit 10 20's page at the original Knot Atlas!


[edit] Knot presentations

Planar diagram presentation X1425 X11,14,12,15 X3,13,4,12 X13,3,14,2 X5,18,6,19 X7,20,8,1 X19,6,20,7 X9,16,10,17 X15,10,16,11 X17,8,18,9
Gauss code -1, 4, -3, 1, -5, 7, -6, 10, -8, 9, -2, 3, -4, 2, -9, 8, -10, 5, -7, 6
Dowker-Thistlethwaite code 4 12 18 20 16 14 2 10 8 6
Conway Notation [352]


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

Length is 12, width is 5,

Braid index is 5

Image:10 20_ML.gif Image:10 20_AP.gif
[{12, 3}, {4, 2}, {3, 11}, {1, 4}, {10, 12}, {11, 9}, {8, 10}, {9, 5}, {2, 6}, {5, 7}, {6, 8}, {7, 1}]

[edit Notes on presentations of 10 20]


[edit] Three dimensional invariants

Symmetry type Reversible
Unknotting number 2
3-genus 2
Bridge index 2
Super bridge index Missing
Nakanishi index 1
Maximal Thurston-Bennequin number [-11][-1]
Hyperbolic Volume 8.31738
A-Polynomial See Data:10 20/A-polynomial

[edit Notes for 10 20'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 10 20's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial −3t2 + 9t−11 + 9t−1−3t−2
Conway polynomial −3z4−3z2 + 1
2nd Alexander ideal (db, data sources) {1}
Determinant and Signature { 35, -2 }
Jones polynomial q−1 + 3q−1−4q−2 + 5q−3−6q−4 + 5q−5−4q−6 + 3q−7−2q−8 + q−9
HOMFLY-PT polynomial (db, data sources) z2a8 + a8z4a6−2z2a6a6z4a4z2a4z4a2−2z2a2a2 + z2 + 2
Kauffman polynomial (db, data sources) z6a10−4z4a10 + 3z2a10 + 2z7a9−8z5a9 + 7z3a9za9 + 2z8a8−8z6a8 + 9z4a8−5z2a8 + a8 + z9a7−3z7a7 + 3z5a7−4z3a7 + 2za7 + 3z8a6−12z6a6 + 17z4a6−9z2a6 + a6 + z9a5−4z7a5 + 9z5a5−8z3a5 + 3za5 + z8a4−2z6a4 + 3z4a4 + z7a3z5a3 + 2z3a3za3 + z6a2−2z2a2 + a2 + z5az3aza + z4−3z2 + 2
The A2 invariant q28 + q22q20q14q10q4 + 2q2 + 1 + q−2 + q−4
The G2 invariant q142q140 + 2q138−3q136 + 2q134−2q132q130 + 6q128−9q126 + 10q124−9q122 + 3q120 + 4q118−11q116 + 16q114−13q112 + 9q110 + q108−8q106 + 12q104−9q102 + 3q100 + 3q98−7q96 + 7q94−2q92−4q90 + 11q88−12q86 + 9q84−4q82−5q80 + 10q78−15q76 + 15q74−9q72 + 3q70 + 5q68−12q66 + 13q64−10q62 + 4q60 + q58−7q56 + 7q54−3q52−2q50 + 5q48−6q46 + q44 + 2q42−7q40 + 7q38−5q36 + 3q34q32−3q30 + 4q28−5q26 + 5q24−5q22 + 4q20−3q18q16 + 4q14−6q12 + 8q10−4q8 + 3q6 + q4q2 + 4−3q−2 + 4q−4q−6 + q−8 + q−10q−12 + 2q−14 + q−18

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

Same Alexander/Conway Polynomial: {10_162, K11n117,}

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

[edit] Vassiliev invariants

V2 and V3: (-3, 6)

[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 10 20. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-8-7-6-5-4-3-2-1012χ
3          11
1           0
-1        31 2
-3       21  -1
-5      32   1
-7     32    -1
-9    23     -1
-11   23      1
-13  12       -1
-15 12        1
-17 1         -1
-191          1
Integral Khovanov Homology

(db, data source)

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

Back to the top.

10_19

10_21

Personal tools