K11n88

K11n87

K11n89

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n88 at Knotilus!

Knot presentations

Planar diagram presentation	X4251 X10,3,11,4 X12,6,13,5 X16,8,17,7 X18,10,19,9 X2,11,3,12 X13,21,14,20 X6,16,7,15 X8,18,9,17 X19,1,20,22 X21,15,22,14
Gauss code	1, -6, 2, -1, 3, -8, 4, -9, 5, -2, 6, -3, -7, 11, 8, -4, 9, -5, -10, 7, -11, 10
Dowker-Thistlethwaite code	4 10 12 16 18 2 -20 6 8 -22 -14

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number 3 3-genus 4 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n88/ThurstonBennequinNumber Hyperbolic Volume 7.44484 A-Polynomial See Data:K11n88/A-polynomial

[edit Notes for K11n88's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus Missing Topological 4 genus Missing Concordance genus $4$ Rasmussen s-Invariant -6

[edit Notes for K11n88's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$-t^4+3 t^3-2 t^2+1-2 t^{-2} +3 t^{-3} - t^{-4}$
Conway polynomial	$-z^8-5 z^6-4 z^4+3 z^2+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 11, 6 }
Jones polynomial	$-q^8+q^7-q^6+2 q^5-2 q^4+2 q^3-q^2+q$
HOMFLY-PT polynomial (db, data sources)	$-z^8 a^{-6} +z^6 a^{-4} -7 z^6 a^{-6} +z^6 a^{-8} +6 z^4 a^{-4} -16 z^4 a^{-6} +6 z^4 a^{-8} +10 z^2 a^{-4} -15 z^2 a^{-6} +9 z^2 a^{-8} -z^2 a^{-10} +4 a^{-4} -5 a^{-6} +3 a^{-8} - a^{-10}$
Kauffman polynomial (db, data sources)	$z^9 a^{-5} +z^9 a^{-7} +z^8 a^{-4} +3 z^8 a^{-6} +2 z^8 a^{-8} -6 z^7 a^{-5} -5 z^7 a^{-7} +z^7 a^{-9} -7 z^6 a^{-4} -19 z^6 a^{-6} -12 z^6 a^{-8} +10 z^5 a^{-5} +5 z^5 a^{-7} -5 z^5 a^{-9} +16 z^4 a^{-4} +36 z^4 a^{-6} +20 z^4 a^{-8} -4 z^3 a^{-5} +4 z^3 a^{-9} -14 z^2 a^{-4} -24 z^2 a^{-6} -12 z^2 a^{-8} -2 z^2 a^{-10} -z a^{-5} -z a^{-11} +4 a^{-4} +5 a^{-6} +3 a^{-8} + a^{-10}$
The A2 invariant	$q^{-4} + q^{-6} + q^{-8} + q^{-10} + q^{-18} - q^{-20} - q^{-24} + q^{-32} - q^{-34}$
The G2 invariant	Data:K11n88/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n88 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["K11n88"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$-t^4+3 t^3-2 t^2+1-2 t^{-2} +3 t^{-3} - t^{-4}$

In[5]:=

Conway[K][z]

Out[5]=

$-z^8-5 z^6-4 z^4+3 z^2+1$

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]=

{ 11, 6 }

In[8]:=

Jones[K][q]

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

Out[8]=

$-q^8+q^7-q^6+2 q^5-2 q^4+2 q^3-q^2+q$

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

$-z^8 a^{-6} +z^6 a^{-4} -7 z^6 a^{-6} +z^6 a^{-8} +6 z^4 a^{-4} -16 z^4 a^{-6} +6 z^4 a^{-8} +10 z^2 a^{-4} -15 z^2 a^{-6} +9 z^2 a^{-8} -z^2 a^{-10} +4 a^{-4} -5 a^{-6} +3 a^{-8} - a^{-10}$

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$z^9 a^{-5} +z^9 a^{-7} +z^8 a^{-4} +3 z^8 a^{-6} +2 z^8 a^{-8} -6 z^7 a^{-5} -5 z^7 a^{-7} +z^7 a^{-9} -7 z^6 a^{-4} -19 z^6 a^{-6} -12 z^6 a^{-8} +10 z^5 a^{-5} +5 z^5 a^{-7} -5 z^5 a^{-9} +16 z^4 a^{-4} +36 z^4 a^{-6} +20 z^4 a^{-8} -4 z^3 a^{-5} +4 z^3 a^{-9} -14 z^2 a^{-4} -24 z^2 a^{-6} -12 z^2 a^{-8} -2 z^2 a^{-10} -z a^{-5} -z a^{-11} +4 a^{-4} +5 a^{-6} +3 a^{-8} + a^{-10}$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {}

Same Jones Polynomial (up to mirroring, $q\leftrightarrow q^{-1}$): {7_2,}

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["K11n88"];

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]=

{ $-t^4+3 t^3-2 t^2+1-2 t^{-2} +3 t^{-3} - t^{-4}$, $-q^8+q^7-q^6+2 q^5-2 q^4+2 q^3-q^2+q$ }

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]=

{}

In[6]:=

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

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

Out[6]=

{7_2,}

Vassiliev invariants

V2 and V3:

(3, 6)

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 $12$ $48$ $72$ $270$ $66$ $576$ $1504$ $320$ $304$ $288$ $1152$ $3240$ $792$ $\frac{80831}{10}$ $-\frac{1422}{5}$ $\frac{64942}{15}$ $\frac{769}{6}$ $\frac{5951}{10}$

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 $t^rq^j$ 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=$6 is the signature of K11n88. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

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

Integral Khovanov Homology (db, data source)

$\dim{\mathcal G}_{2r+i}\operatorname{KH}^r_{\mathbb Z}$ $i=3$ $i=5$ $i=7$ $r=-2$ ${\mathbb Z}$ $r=-1$ ${\mathbb Z}_2$ ${\mathbb Z}$ $r=0$ ${\mathbb Z}^{2}$ ${\mathbb Z}$ $r=1$ ${\mathbb Z}\oplus{\mathbb Z}_2$ ${\mathbb Z}$ $r=2$ ${\mathbb Z}\oplus{\mathbb Z}_2$ ${\mathbb Z}$ $r=3$ ${\mathbb Z}\oplus{\mathbb Z}_2$ ${\mathbb Z}$ $r=4$ ${\mathbb Z}$ ${\mathbb Z}\oplus{\mathbb Z}_2$ ${\mathbb Z}$ $r=5$ ${\mathbb Z}$ ${\mathbb Z}$

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.

K11n87 K11n89