K11a131

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K11a130.gif

K11a130

K11a132.gif

K11a132

Contents

K11a131.gif
(Knotscape image)
See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.

Visit K11a131 at Knotilus!



Knot presentations

Planar diagram presentation X4251 X10,3,11,4 X14,6,15,5 X22,8,1,7 X18,9,19,10 X2,11,3,12 X20,13,21,14 X6,16,7,15 X8,17,9,18 X12,19,13,20 X16,21,17,22
Gauss code 1, -6, 2, -1, 3, -8, 4, -9, 5, -2, 6, -10, 7, -3, 8, -11, 9, -5, 10, -7, 11, -4
Dowker-Thistlethwaite code 4 10 14 22 18 2 20 6 8 12 16
A Braid Representative
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A Morse Link Presentation K11a131 ML.gif

Three dimensional invariants

Symmetry type Chiral
Unknotting number \{1,2\}
3-genus 4
Bridge index 3
Super bridge index Missing
Nakanishi index Missing
Maximal Thurston-Bennequin number Data:K11a131/ThurstonBennequinNumber
Hyperbolic Volume 16.9146
A-Polynomial See Data:K11a131/A-polynomial

[edit Notes for K11a131's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for K11a131's four dimensional invariants]

Polynomial invariants

Alexander polynomial -t^4+6 t^3-16 t^2+27 t-31+27 t^{-1} -16 t^{-2} +6 t^{-3} - t^{-4}
Conway polynomial -z^8-2 z^6+z^2+1
2nd Alexander ideal (db, data sources) \{1\}
Determinant and Signature { 131, -2 }
Jones polynomial q^3-4 q^2+9 q-14+19 q^{-1} -21 q^{-2} +21 q^{-3} -18 q^{-4} +13 q^{-5} -7 q^{-6} +3 q^{-7} - q^{-8}
HOMFLY-PT polynomial (db, data sources) -a^2 z^8+2 a^4 z^6-5 a^2 z^6+z^6-a^6 z^4+8 a^4 z^4-10 a^2 z^4+3 z^4-3 a^6 z^2+11 a^4 z^2-10 a^2 z^2+3 z^2-2 a^6+5 a^4-4 a^2+2
Kauffman polynomial (db, data sources) 2 a^4 z^{10}+2 a^2 z^{10}+6 a^5 z^9+12 a^3 z^9+6 a z^9+7 a^6 z^8+12 a^4 z^8+12 a^2 z^8+7 z^8+5 a^7 z^7-7 a^5 z^7-23 a^3 z^7-7 a z^7+4 z^7 a^{-1} +3 a^8 z^6-12 a^6 z^6-40 a^4 z^6-42 a^2 z^6+z^6 a^{-2} -16 z^6+a^9 z^5-6 a^7 z^5+3 a^5 z^5+11 a^3 z^5-8 a z^5-9 z^5 a^{-1} -5 a^8 z^4+13 a^6 z^4+50 a^4 z^4+44 a^2 z^4-2 z^4 a^{-2} +10 z^4-2 a^9 z^3+a^7 z^3+3 a^5 z^3+3 a^3 z^3+8 a z^3+5 z^3 a^{-1} +2 a^8 z^2-8 a^6 z^2-26 a^4 z^2-22 a^2 z^2+z^2 a^{-2} -5 z^2+a^9 z-2 a^5 z-2 a^3 z-2 a z-z a^{-1} +2 a^6+5 a^4+4 a^2+2
The A2 invariant -q^{24}-2 q^{18}+4 q^{16}-2 q^{14}+2 q^{12}+2 q^{10}-3 q^8+4 q^6-5 q^4+3 q^2- q^{-2} +3 q^{-4} -2 q^{-6} + q^{-8}
The G2 invariant q^{128}-2 q^{126}+5 q^{124}-8 q^{122}+9 q^{120}-8 q^{118}+q^{116}+12 q^{114}-27 q^{112}+44 q^{110}-56 q^{108}+54 q^{106}-36 q^{104}-6 q^{102}+67 q^{100}-134 q^{98}+189 q^{96}-215 q^{94}+175 q^{92}-65 q^{90}-116 q^{88}+328 q^{86}-483 q^{84}+513 q^{82}-369 q^{80}+57 q^{78}+313 q^{76}-618 q^{74}+723 q^{72}-554 q^{70}+171 q^{68}+276 q^{66}-586 q^{64}+623 q^{62}-357 q^{60}-81 q^{58}+486 q^{56}-662 q^{54}+512 q^{52}-88 q^{50}-432 q^{48}+841 q^{46}-941 q^{44}+692 q^{42}-174 q^{40}-429 q^{38}+894 q^{36}-1061 q^{34}+873 q^{32}-404 q^{30}-173 q^{28}+650 q^{26}-849 q^{24}+707 q^{22}-295 q^{20}-203 q^{18}+556 q^{16}-628 q^{14}+376 q^{12}+72 q^{10}-503 q^8+729 q^6-637 q^4+269 q^2+211-607 q^{-2} +766 q^{-4} -646 q^{-6} +328 q^{-8} +51 q^{-10} -350 q^{-12} +482 q^{-14} -435 q^{-16} +280 q^{-18} -84 q^{-20} -71 q^{-22} +150 q^{-24} -163 q^{-26} +123 q^{-28} -66 q^{-30} +20 q^{-32} +12 q^{-34} -24 q^{-36} +22 q^{-38} -16 q^{-40} +8 q^{-42} -3 q^{-44} + q^{-46}

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {K11a252, K11a254,}

Same Jones Polynomial (up to mirroring, q\leftrightarrow q^{-1}): {K11a218,}

Vassiliev invariants

V2 and V3: (1, -3)
V2,1 through V6,9:
V2,1 V3,1 V4,1 V4,2 V4,3 V5,1 V5,2 V5,3 V5,4 V6,1 V6,2 V6,3 V6,4 V6,5 V6,6 V6,7 V6,8 V6,9
4 -24 8 \frac{206}{3} \frac{10}{3} -96 -176 0 8 \frac{32}{3} 288 \frac{824}{3} \frac{40}{3} \frac{24031}{30} \frac{4138}{15} -\frac{4858}{45} -\frac{127}{18} -\frac{1889}{30}

V2,1 through V6,9 were provided by Petr Dunin-Barkowski <barkovs@itep.ru>, Andrey Smirnov <asmirnov@itep.ru>, and Alexei Sleptsov <sleptsov@itep.ru> and uploaded on October 2010 by User:Drorbn. Note that they are normalized differently than V2 and V3.

Khovanov Homology

The coefficients of the monomials t^rq^j are shown, along with their alternating sums \chi (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 K11a131. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-7-6-5-4-3-2-101234χ
7           11
5          3 -3
3         61 5
1        83  -5
-1       116   5
-3      119    -2
-5     1010     0
-7    811      3
-9   510       -5
-11  28        6
-13 15         -4
-15 2          2
-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}^{2}\oplus{\mathbb Z}_2 {\mathbb Z}
r=-5 {\mathbb Z}^{5}\oplus{\mathbb Z}_2^{2} {\mathbb Z}^{2}
r=-4 {\mathbb Z}^{8}\oplus{\mathbb Z}_2^{5} {\mathbb Z}^{5}
r=-3 {\mathbb Z}^{10}\oplus{\mathbb Z}_2^{8} {\mathbb Z}^{8}
r=-2 {\mathbb Z}^{11}\oplus{\mathbb Z}_2^{10} {\mathbb Z}^{10}
r=-1 {\mathbb Z}^{10}\oplus{\mathbb Z}_2^{11} {\mathbb Z}^{11}
r=0 {\mathbb Z}^{9}\oplus{\mathbb Z}_2^{10} {\mathbb Z}^{11}
r=1 {\mathbb Z}^{6}\oplus{\mathbb Z}_2^{8} {\mathbb Z}^{8}
r=2 {\mathbb Z}^{3}\oplus{\mathbb Z}_2^{6} {\mathbb Z}^{6}
r=3 {\mathbb Z}\oplus{\mathbb Z}_2^{3} {\mathbb Z}^{3}
r=4 {\mathbb Z}_2 {\mathbb Z}

Computer Talk

Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session.

Modifying This Page

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K11a130.gif

K11a130

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K11a132