K11n7

K11n6

K11n8

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n7 at Knotilus!

Knot K11n7.

A graph, knot K11n7.

A part of a knot and a part of a graph.

Knot presentations

Planar diagram presentation	X4251 X8394 X10,6,11,5 X7,14,8,15 X2,9,3,10 X18,12,19,11 X13,6,14,7 X20,16,21,15 X12,18,13,17 X22,20,1,19 X16,22,17,21
Gauss code	1, -5, 2, -1, 3, 7, -4, -2, 5, -3, 6, -9, -7, 4, 8, -11, 9, -6, 10, -8, 11, -10
Dowker-Thistlethwaite code	4 8 10 -14 2 18 -6 20 12 22 16

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Chiral Unknotting number $\{1,2\}$ 3-genus 3 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n7/ThurstonBennequinNumber Hyperbolic Volume 13.8902 A-Polynomial See Data:K11n7/A-polynomial

[edit Notes for K11n7's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus Missing Topological 4 genus Missing Concordance genus $3$ Rasmussen s-Invariant -2

[edit Notes for K11n7's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$t^{3}-6t^{2}+16t-21+16t^{-1}-6t^{-2}+t^{-3}$
Conway polynomial	$z^{6}+z^{2}+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 67, 2 }
Jones polynomial	$-2q^{6}+5q^{5}-8q^{4}+11q^{3}-11q^{2}+11q-9+6q^{-1}-3q^{-2}+q^{-3}$
HOMFLY-PT polynomial (db, data sources)	$z^{6}a^{-2}+3z^{4}a^{-2}-z^{4}a^{-4}-2z^{4}+a^{2}z^{2}+4z^{2}a^{-2}-4z^{2}+a^{2}+2a^{-2}+a^{-4}-a^{-6}-2$
Kauffman polynomial (db, data sources)	$z^{9}a^{-1}+z^{9}a^{-3}+6z^{8}a^{-2}+3z^{8}a^{-4}+3z^{8}+3az^{7}+7z^{7}a^{-1}+7z^{7}a^{-3}+3z^{7}a^{-5}+a^{2}z^{6}-7z^{6}a^{-2}-z^{6}a^{-4}+z^{6}a^{-6}-4z^{6}-9az^{5}-24z^{5}a^{-1}-17z^{5}a^{-3}-2z^{5}a^{-5}-3a^{2}z^{4}-9z^{4}a^{-2}-z^{4}a^{-4}+4z^{4}a^{-6}-7z^{4}+8az^{3}+17z^{3}a^{-1}+11z^{3}a^{-3}+5z^{3}a^{-5}+3z^{3}a^{-7}+3a^{2}z^{2}+9z^{2}a^{-2}-3z^{2}a^{-6}+9z^{2}-2az-4za^{-1}-3za^{-3}-3za^{-5}-2za^{-7}-a^{2}-2a^{-2}+a^{-4}+a^{-6}-2$
The A2 invariant	Data:K11n7/QuantumInvariant/A2/1,0
The G2 invariant	Data:K11n7/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n7 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["K11n7"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$t^{3}-6t^{2}+16t-21+16t^{-1}-6t^{-2}+t^{-3}$

In[5]:=

Conway[K][z]

Out[5]=

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

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]=

{ 67, 2 }

In[8]:=

Jones[K][q]

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

Out[8]=

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

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

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

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$z^{9}a^{-1}+z^{9}a^{-3}+6z^{8}a^{-2}+3z^{8}a^{-4}+3z^{8}+3az^{7}+7z^{7}a^{-1}+7z^{7}a^{-3}+3z^{7}a^{-5}+a^{2}z^{6}-7z^{6}a^{-2}-z^{6}a^{-4}+z^{6}a^{-6}-4z^{6}-9az^{5}-24z^{5}a^{-1}-17z^{5}a^{-3}-2z^{5}a^{-5}-3a^{2}z^{4}-9z^{4}a^{-2}-z^{4}a^{-4}+4z^{4}a^{-6}-7z^{4}+8az^{3}+17z^{3}a^{-1}+11z^{3}a^{-3}+5z^{3}a^{-5}+3z^{3}a^{-7}+3a^{2}z^{2}+9z^{2}a^{-2}-3z^{2}a^{-6}+9z^{2}-2az-4za^{-1}-3za^{-3}-3za^{-5}-2za^{-7}-a^{2}-2a^{-2}+a^{-4}+a^{-6}-2$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {K11n131, K11n160,}

Same Jones Polynomial (up to mirroring, $q\leftrightarrow q^{-1}$): {K11n36, K11n44,}

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["K11n7"];

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]=

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

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]=

{K11n131, K11n160,}

In[6]:=

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

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

Out[6]=

{K11n36, K11n44,}

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 $4$ $24$ $8$ ${\frac {158}{3}}$ ${\frac {10}{3}}$ $96$ $208$ $0$ $56$ ${\frac {32}{3}}$ $288$ ${\frac {632}{3}}$ ${\frac {40}{3}}$ ${\frac {26671}{30}}$ $-{\frac {1222}{15}}$ ${\frac {18902}{45}}$ ${\frac {305}{18}}$ ${\frac {1711}{30}}$

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 K11n7. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

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

Integral Khovanov Homology (db, data source)

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

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.

K11n6 K11n8