K11n68

K11n67

K11n69

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n68 at Knotilus!

Knot presentations

Planar diagram presentation	X4251 X8493 X5,15,6,14 X2837 X18,9,19,10 X16,11,17,12 X20,14,21,13 X15,7,16,6 X10,17,11,18 X22,19,1,20 X12,22,13,21
Gauss code	1, -4, 2, -1, -3, 8, 4, -2, 5, -9, 6, -11, 7, 3, -8, -6, 9, -5, 10, -7, 11, -10
Dowker-Thistlethwaite code	4 8 -14 2 18 16 20 -6 10 22 12

A Braid Representative	{{{braid_table}}}
A Morse Link Presentation

Three dimensional invariants

Symmetry type Chiral Unknotting number $\{1,2\}$ 3-genus 2 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n68/ThurstonBennequinNumber Hyperbolic Volume 13.3364 A-Polynomial See Data:K11n68/A-polynomial

[edit Notes for K11n68's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus Missing Topological 4 genus Missing Concordance genus $[1,2]$ Rasmussen s-Invariant -2

[edit Notes for K11n68's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$-4t^{2}+16t-23+16t^{-1}-4t^{-2}$
Conway polynomial	$1-4z^{4}$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 63, 2 }
Jones polynomial	$-q^{8}+3q^{7}-6q^{6}+9q^{5}-10q^{4}+11q^{3}-10q^{2}+7q-4+2q^{-1}$
HOMFLY-PT polynomial (db, data sources)	Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -2 z^4 a^{-2} -2 z^4 a^{-4} -3 z^2 a^{-2} -2 z^2 a^{-4} +3 z^2 a^{-6} +2 z^2-2 a^{-2} +2 a^{-6} - a^{-8} +2}
Kauffman polynomial (db, data sources)	$z^{9}a^{-3}+z^{9}a^{-5}+2z^{8}a^{-2}+5z^{8}a^{-4}+3z^{8}a^{-6}+z^{7}a^{-1}+2z^{7}a^{-3}+5z^{7}a^{-5}+4z^{7}a^{-7}-4z^{6}a^{-2}-8z^{6}a^{-4}-z^{6}a^{-6}+3z^{6}a^{-8}+z^{5}a^{-1}-4z^{5}a^{-3}-12z^{5}a^{-5}-6z^{5}a^{-7}+z^{5}a^{-9}+10z^{4}a^{-2}+6z^{4}a^{-4}-7z^{4}a^{-6}-6z^{4}a^{-8}+3z^{4}-3z^{3}a^{-1}+4z^{3}a^{-3}+9z^{3}a^{-5}-2z^{3}a^{-9}-10z^{2}a^{-2}-z^{2}a^{-4}+6z^{2}a^{-6}+3z^{2}a^{-8}-6z^{2}+za^{-1}-2za^{-5}+za^{-9}+2a^{-2}-2a^{-6}-a^{-8}+2$
The A2 invariant	Data:K11n68/QuantumInvariant/A2/1,0
The G2 invariant	Data:K11n68/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n68 Quantum Invariants.

Computer Talk

The above data is available with the Mathematica package KnotTheory`, as shown in the (simulated) Mathematica session below. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting. This Mathematica session is also available (albeit only for the knot 5_2) as the notebook PolynomialInvariantsSession.nb.

(The path below may be different on your system, and possibly also the KnotTheory` date)

In[1]:=

AppendTo[$Path, "C:/drorbn/projects/KAtlas/"]; << KnotTheory`

Loading KnotTheory` version of August 31, 2006, 11:25:27.5625. Read more at http://katlas.math.toronto.edu/wiki/KnotTheory.

In[3]:=

K = Knot["K11n68"];

In[4]:=

Alexander[K][t]

KnotTheory::loading: Loading precomputed data in PD4Knots`.

Out[4]=

$-4t^{2}+16t-23+16t^{-1}-4t^{-2}$

In[5]:=

Conway[K][z]

Out[5]=

$1-4z^{4}$

In[6]:=

Alexander[K, 2][t]

KnotTheory::credits: The program Alexander[K, r] to compute Alexander ideals was written by Jana Archibald at the University of Toronto in the summer of 2005.

Out[6]=

$\{1\}$

In[7]:=

{KnotDet[K], KnotSignature[K]}

Out[7]=

{ 63, 2 }

In[8]:=

Jones[K][q]

KnotTheory::loading: Loading precomputed data in Jones4Knots`.

Out[8]=

$-q^{8}+3q^{7}-6q^{6}+9q^{5}-10q^{4}+11q^{3}-10q^{2}+7q-4+2q^{-1}$

In[9]:=

HOMFLYPT[K][a, z]

KnotTheory::credits: The HOMFLYPT program was written by Scott Morrison.

Out[9]=

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle -2 z^4 a^{-2} -2 z^4 a^{-4} -3 z^2 a^{-2} -2 z^2 a^{-4} +3 z^2 a^{-6} +2 z^2-2 a^{-2} +2 a^{-6} - a^{-8} +2}

In[10]:=

Kauffman[K][a, z]

KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.

Out[10]=

$z^{9}a^{-3}+z^{9}a^{-5}+2z^{8}a^{-2}+5z^{8}a^{-4}+3z^{8}a^{-6}+z^{7}a^{-1}+2z^{7}a^{-3}+5z^{7}a^{-5}+4z^{7}a^{-7}-4z^{6}a^{-2}-8z^{6}a^{-4}-z^{6}a^{-6}+3z^{6}a^{-8}+z^{5}a^{-1}-4z^{5}a^{-3}-12z^{5}a^{-5}-6z^{5}a^{-7}+z^{5}a^{-9}+10z^{4}a^{-2}+6z^{4}a^{-4}-7z^{4}a^{-6}-6z^{4}a^{-8}+3z^{4}-3z^{3}a^{-1}+4z^{3}a^{-3}+9z^{3}a^{-5}-2z^{3}a^{-9}-10z^{2}a^{-2}-z^{2}a^{-4}+6z^{2}a^{-6}+3z^{2}a^{-8}-6z^{2}+za^{-1}-2za^{-5}+za^{-9}+2a^{-2}-2a^{-6}-a^{-8}+2$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {10_67, 10_74,}

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

Computer Talk

The above data is available with the Mathematica package KnotTheory`. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting.

(The path below may be different on your system, and possibly also the KnotTheory` date)

In[1]:=

AppendTo[$Path, "C:/drorbn/projects/KAtlas/"]; << KnotTheory`

Loading KnotTheory` version of May 31, 2006, 14:15:20.091. Read more at http://katlas.math.toronto.edu/wiki/KnotTheory.

In[3]:=

K = Knot["K11n68"];

In[4]:=

{A = Alexander[K][t], J = Jones[K][q]}

KnotTheory::loading: Loading precomputed data in PD4Knots`.

KnotTheory::loading: Loading precomputed data in Jones4Knots`.

Out[4]=

{ $-4t^{2}+16t-23+16t^{-1}-4t^{-2}$, $-q^{8}+3q^{7}-6q^{6}+9q^{5}-10q^{4}+11q^{3}-10q^{2}+7q-4+2q^{-1}$ }

In[5]:=

DeleteCases[Select[AllKnots[], (A === Alexander[#][t]) &], K]

KnotTheory::loading: Loading precomputed data in DTCode4KnotsTo11`.

KnotTheory::credits: The GaussCode to PD conversion was written by Siddarth Sankaran at the University of Toronto in the summer of 2005.

Out[5]=

{10_67, 10_74,}

In[6]:=

DeleteCases[ Select[ AllKnots[], (J === Jones[#][q] || (J /. q -> 1/q) === Jones[#][q]) & ], K ]

KnotTheory::loading: Loading precomputed data in Jones4Knots11`.

Out[6]=

{}

Vassiliev invariants

V2 and V3:

(0, 2)

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 $0$ $16$ $0$ $96$ $32$ $0$ ${\frac {832}{3}}$ ${\frac {160}{3}}$ $80$ $0$ $128$ $0$ Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 0} $784$ $-{\frac {208}{3}}$ ${\frac {1312}{3}}$ ${\frac {160}{3}}$ $32$

V_2,1 through V_6,9 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 $t^{r}q^{j}$ 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 K11n68. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\   r    \    j   \ -2 -1 0 1 2 3 4 5 6 7 χ 17                   1 -1 15                 2   2 13               4 1   -3 11             5 2     3 9           5 4       -1 7         6 5         1 5       4 5           1 3     3 6             -3 1   2 5               3 -1   2                 -2 -3 2                   2

Integral Khovanov Homology (db, data source)

$\dim {\mathcal {G}}_{2r+i}\operatorname {KH} _{\mathbb {Z} }^{r}$ $i=1$ $i=3$ $r=-2$ ${\mathbb {Z} }^{2}$ $r=-1$ ${\mathbb {Z} }^{2}\oplus {\mathbb {Z} }_{2}^{2}$ ${\mathbb {Z} }^{2}$ $r=0$ ${\mathbb {Z} }^{5}\oplus {\mathbb {Z} }_{2}^{2}$ ${\mathbb {Z} }^{3}$ $r=1$ ${\mathbb {Z} }^{6}\oplus {\mathbb {Z} }_{2}^{4}$ ${\mathbb {Z} }^{4}$ $r=2$ ${\mathbb {Z} }^{5}\oplus {\mathbb {Z} }_{2}^{6}$ ${\mathbb {Z} }^{6}$ $r=3$ ${\mathbb {Z} }^{5}\oplus {\mathbb {Z} }_{2}^{5}$ ${\mathbb {Z} }^{5}$ $r=4$ ${\mathbb {Z} }^{4}\oplus {\mathbb {Z} }_{2}^{5}$ ${\mathbb {Z} }^{5}$ $r=5$ ${\mathbb {Z} }^{2}\oplus {\mathbb {Z} }_{2}^{4}$ ${\mathbb {Z} }^{4}$ $r=6$ ${\mathbb {Z} }\oplus {\mathbb {Z} }_{2}^{2}$ ${\mathbb {Z} }^{2}$ $r=7$ ${\mathbb {Z} }_{2}$ ${\mathbb {Z} }$

Computer Talk

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

Modifying This Page

Read me first: Modifying Knot Pages. See/edit the Hoste-Thistlethwaite Knot Page master template (intermediate). See/edit the Hoste-Thistlethwaite_Splice_Base (expert). Back to the top.

K11n67 K11n69