K11a238

K11a237

K11a239

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11a238 at Knotilus!

Knot presentations

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

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number 2 3-genus 2 Bridge index 2 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11a238/ThurstonBennequinNumber Hyperbolic Volume 10.8467 A-Polynomial See Data:K11a238/A-polynomial

[edit Notes for K11a238's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for K11a238's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$6t^{2}-16t+21-16t^{-1}+6t^{-2}$
Conway polynomial	$6z^{4}+8z^{2}+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 65, 4 }
Jones polynomial	$-q^{13}+2q^{12}-4q^{11}+6q^{10}-8q^{9}+10q^{8}-10q^{7}+9q^{6}-7q^{5}+5q^{4}-2q^{3}+q^{2}$
HOMFLY-PT polynomial (db, data sources)	$z^{4}a^{-4}+2z^{4}a^{-6}+2z^{4}a^{-8}+z^{4}a^{-10}+2z^{2}a^{-4}+3z^{2}a^{-6}+3z^{2}a^{-8}+z^{2}a^{-10}-z^{2}a^{-12}+a^{-4}+a^{-8}-a^{-12}$
Kauffman polynomial (db, data sources)	$z^{10}a^{-10}+z^{10}a^{-12}+2z^{9}a^{-9}+4z^{9}a^{-11}+2z^{9}a^{-13}+3z^{8}a^{-8}-z^{8}a^{-12}+2z^{8}a^{-14}+3z^{7}a^{-7}-2z^{7}a^{-9}-13z^{7}a^{-11}-7z^{7}a^{-13}+z^{7}a^{-15}+3z^{6}a^{-6}-5z^{6}a^{-8}-4z^{6}a^{-10}-5z^{6}a^{-12}-9z^{6}a^{-14}+2z^{5}a^{-5}-2z^{5}a^{-7}-2z^{5}a^{-9}+11z^{5}a^{-11}+4z^{5}a^{-13}-5z^{5}a^{-15}+z^{4}a^{-4}-3z^{4}a^{-6}+7z^{4}a^{-8}+3z^{4}a^{-10}+3z^{4}a^{-12}+11z^{4}a^{-14}-2z^{3}a^{-5}+5z^{3}a^{-9}-2z^{3}a^{-11}+2z^{3}a^{-13}+7z^{3}a^{-15}-2z^{2}a^{-4}+z^{2}a^{-6}-5z^{2}a^{-8}-z^{2}a^{-10}+3z^{2}a^{-12}-4z^{2}a^{-14}-3za^{-9}-za^{-11}-za^{-13}-3za^{-15}+a^{-4}+a^{-8}-a^{-12}$
The A2 invariant	Data:K11a238/QuantumInvariant/A2/1,0
The G2 invariant	Data:K11a238/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11a238 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["K11a238"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$6t^{2}-16t+21-16t^{-1}+6t^{-2}$

In[5]:=

Conway[K][z]

Out[5]=

$6z^{4}+8z^{2}+1$

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]=

{ 65, 4 }

In[8]:=

Jones[K][q]

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

Out[8]=

$-q^{13}+2q^{12}-4q^{11}+6q^{10}-8q^{9}+10q^{8}-10q^{7}+9q^{6}-7q^{5}+5q^{4}-2q^{3}+q^{2}$

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

$z^{4}a^{-4}+2z^{4}a^{-6}+2z^{4}a^{-8}+z^{4}a^{-10}+2z^{2}a^{-4}+3z^{2}a^{-6}+3z^{2}a^{-8}+z^{2}a^{-10}-z^{2}a^{-12}+a^{-4}+a^{-8}-a^{-12}$

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$z^{10}a^{-10}+z^{10}a^{-12}+2z^{9}a^{-9}+4z^{9}a^{-11}+2z^{9}a^{-13}+3z^{8}a^{-8}-z^{8}a^{-12}+2z^{8}a^{-14}+3z^{7}a^{-7}-2z^{7}a^{-9}-13z^{7}a^{-11}-7z^{7}a^{-13}+z^{7}a^{-15}+3z^{6}a^{-6}-5z^{6}a^{-8}-4z^{6}a^{-10}-5z^{6}a^{-12}-9z^{6}a^{-14}+2z^{5}a^{-5}-2z^{5}a^{-7}-2z^{5}a^{-9}+11z^{5}a^{-11}+4z^{5}a^{-13}-5z^{5}a^{-15}+z^{4}a^{-4}-3z^{4}a^{-6}+7z^{4}a^{-8}+3z^{4}a^{-10}+3z^{4}a^{-12}+11z^{4}a^{-14}-2z^{3}a^{-5}+5z^{3}a^{-9}-2z^{3}a^{-11}+2z^{3}a^{-13}+7z^{3}a^{-15}-2z^{2}a^{-4}+z^{2}a^{-6}-5z^{2}a^{-8}-z^{2}a^{-10}+3z^{2}a^{-12}-4z^{2}a^{-14}-3za^{-9}-za^{-11}-za^{-13}-3za^{-15}+a^{-4}+a^{-8}-a^{-12}$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {K11n171,}

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["K11a238"];

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]=

{ $6t^{2}-16t+21-16t^{-1}+6t^{-2}$, $-q^{13}+2q^{12}-4q^{11}+6q^{10}-8q^{9}+10q^{8}-10q^{7}+9q^{6}-7q^{5}+5q^{4}-2q^{3}+q^{2}$ }

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]=

{K11n171,}

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:

(8, 24)

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 $32$ $192$ $512$ ${\frac {4192}{3}}$ ${\frac {608}{3}}$ $6144$ $11392$ $1952$ $1504$ ${\frac {16384}{3}}$ $18432$ ${\frac {134144}{3}}$ ${\frac {19456}{3}}$ ${\frac {1418644}{15}}$ ${\frac {35344}{15}}$ ${\frac {1636816}{45}}$ ${\frac {7820}{9}}$ ${\frac {69844}{15}}$

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=$4 is the signature of K11a238. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\   r    \    j   \ 0 1 2 3 4 5 6 7 8 9 10 11 χ 27                       1 -1 25                     1   1 23                   3 1   -2 21                 3 1     2 19               5 3       -2 17             5 3         2 15           5 5           0 13         4 5             -1 11       3 5               2 9     2 4                 -2 7     3                   3 5 1 2                     -1 3 1                       1

Integral Khovanov Homology (db, data source)

$\dim {\mathcal {G}}_{2r+i}\operatorname {KH} _{\mathbb {Z} }^{r}$ $i=3$ $i=5$ $r=0$ ${\mathbb {Z} }$ ${\mathbb {Z} }$ $r=1$ ${\mathbb {Z} }^{2}$ $r=2$ ${\mathbb {Z} }^{3}\oplus {\mathbb {Z} }_{2}^{2}$ ${\mathbb {Z} }^{2}$ $r=3$ ${\mathbb {Z} }^{4}\oplus {\mathbb {Z} }_{2}^{3}$ ${\mathbb {Z} }^{3}$ $r=4$ ${\mathbb {Z} }^{5}\oplus {\mathbb {Z} }_{2}^{4}$ ${\mathbb {Z} }^{4}$ $r=5$ ${\mathbb {Z} }^{5}\oplus {\mathbb {Z} }_{2}^{5}$ ${\mathbb {Z} }^{5}$ $r=6$ ${\mathbb {Z} }^{5}\oplus {\mathbb {Z} }_{2}^{5}$ ${\mathbb {Z} }^{5}$ $r=7$ ${\mathbb {Z} }^{3}\oplus {\mathbb {Z} }_{2}^{5}$ ${\mathbb {Z} }^{5}$ $r=8$ ${\mathbb {Z} }^{3}\oplus {\mathbb {Z} }_{2}^{3}$ ${\mathbb {Z} }^{3}$ $r=9$ ${\mathbb {Z} }\oplus {\mathbb {Z} }_{2}^{3}$ ${\mathbb {Z} }^{3}$ $r=10$ ${\mathbb {Z} }\oplus {\mathbb {Z} }_{2}$ ${\mathbb {Z} }$ $r=11$ ${\mathbb {Z} }_{2}$ ${\mathbb {Z} }$

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.

K11a237 K11a239