9 19

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9 18.gif

9_18

9 20.gif

9_20

Contents

9 19.gif
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Knot presentations

Planar diagram presentation X1425 X5,10,6,11 X3948 X9,3,10,2 X13,16,14,17 X7,15,8,14 X15,7,16,6 X11,18,12,1 X17,12,18,13
Gauss code -1, 4, -3, 1, -2, 7, -6, 3, -4, 2, -8, 9, -5, 6, -7, 5, -9, 8
Dowker-Thistlethwaite code 4 8 10 14 2 18 16 6 12
Conway Notation [23112]


Minimum Braid Representative A Morse Link Presentation An Arc Presentation
BraidPart1.gifBraidPart0.gifBraidPart1.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gif
BraidPart2.gifBraidPart3.gifBraidPart2.gifBraidPart3.gifBraidPart3.gifBraidPart0.gifBraidPart1.gifBraidPart0.gifBraidPart0.gif
BraidPart0.gifBraidPart4.gifBraidPart0.gifBraidPart4.gifBraidPart4.gifBraidPart3.gifBraidPart2.gifBraidPart3.gifBraidPart0.gif
BraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart4.gifBraidPart1.gifBraidPart4.gifBraidPart1.gif
BraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart2.gifBraidPart0.gifBraidPart2.gif

Length is 10, width is 5,

Braid index is 5

9 19 ML.gif 9 19 AP.gif
[{11, 5}, {4, 9}, {10, 6}, {5, 7}, {9, 11}, {6, 3}, {2, 4}, {3, 1}, {8, 2}, {7, 10}, {1, 8}]

[edit Notes on presentations of 9 19]


Three dimensional invariants

Symmetry type Reversible
Unknotting number 1
3-genus 2
Bridge index 2
Super bridge index \{4,6\}
Nakanishi index 1
Maximal Thurston-Bennequin number [-6][-5]
Hyperbolic Volume 10.0325
A-Polynomial See Data:9 19/A-polynomial

[edit Notes for 9 19's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus 1
Topological 4 genus 1
Concordance genus 2
Rasmussen s-Invariant 0

[edit Notes for 9 19's four dimensional invariants]

Polynomial invariants

Alexander polynomial 2 t^2-10 t+17-10 t^{-1} +2 t^{-2}
Conway polynomial 2 z^4-2 z^2+1
2nd Alexander ideal (db, data sources) \{1\}
Determinant and Signature { 41, 0 }
Jones polynomial q^4-2 q^3+4 q^2-6 q+7-7 q^{-1} +6 q^{-2} -4 q^{-3} +3 q^{-4} - q^{-5}
HOMFLY-PT polynomial (db, data sources) -z^2 a^4+z^4 a^2+z^2 a^2+a^2+z^4-2 z^2 a^{-2} - a^{-2} + a^{-4}
Kauffman polynomial (db, data sources) a^2 z^8+z^8+3 a^3 z^7+5 a z^7+2 z^7 a^{-1} +3 a^4 z^6+3 a^2 z^6+2 z^6 a^{-2} +2 z^6+a^5 z^5-7 a^3 z^5-11 a z^5-z^5 a^{-1} +2 z^5 a^{-3} -8 a^4 z^4-11 a^2 z^4+z^4 a^{-4} -4 z^4-2 a^5 z^3+4 a^3 z^3+10 a z^3+z^3 a^{-1} -3 z^3 a^{-3} +4 a^4 z^2+8 a^2 z^2-3 z^2 a^{-2} -2 z^2 a^{-4} +3 z^2-a^3 z-3 a z-z a^{-1} +z a^{-3} -a^2+ a^{-2} + a^{-4}
The A2 invariant -q^{16}+q^{14}+q^{12}-q^{10}+2 q^8+q^2-1+ q^{-2} -2 q^{-4} + q^{-8} - q^{-10} + q^{-12} + q^{-14}
The G2 invariant q^{80}-2 q^{78}+4 q^{76}-7 q^{74}+5 q^{72}-3 q^{70}-5 q^{68}+16 q^{66}-21 q^{64}+24 q^{62}-18 q^{60}+2 q^{58}+18 q^{56}-34 q^{54}+40 q^{52}-31 q^{50}+13 q^{48}+11 q^{46}-28 q^{44}+33 q^{42}-24 q^{40}+8 q^{38}+10 q^{36}-23 q^{34}+20 q^{32}-6 q^{30}-13 q^{28}+30 q^{26}-34 q^{24}+27 q^{22}-6 q^{20}-20 q^{18}+41 q^{16}-51 q^{14}+48 q^{12}-25 q^{10}-3 q^8+30 q^6-44 q^4+44 q^2-27+4 q^{-2} +14 q^{-4} -24 q^{-6} +19 q^{-8} -4 q^{-10} -13 q^{-12} +23 q^{-14} -22 q^{-16} +7 q^{-18} +9 q^{-20} -26 q^{-22} +33 q^{-24} -29 q^{-26} +17 q^{-28} -2 q^{-30} -14 q^{-32} +22 q^{-34} -24 q^{-36} +21 q^{-38} -12 q^{-40} +4 q^{-42} +4 q^{-44} -9 q^{-46} +11 q^{-48} -9 q^{-50} +8 q^{-52} -3 q^{-54} +2 q^{-58} -3 q^{-60} +3 q^{-62} - q^{-64} + q^{-66}