K11n156

K11n155

K11n157

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n156 at Knotilus!

Knot presentations

Planar diagram presentation	X6271 X3,11,4,10 X12,6,13,5 X14,7,15,8 X16,10,17,9 X11,19,12,18 X22,13,1,14 X20,16,21,15 X17,4,18,5 X2,19,3,20 X8,21,9,22
Gauss code	1, -10, -2, 9, 3, -1, 4, -11, 5, 2, -6, -3, 7, -4, 8, -5, -9, 6, 10, -8, 11, -7
Dowker-Thistlethwaite code	6 -10 12 14 16 -18 22 20 -4 2 8

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number 1 3-genus 3 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n156/ThurstonBennequinNumber Hyperbolic Volume 15.3972 A-Polynomial See Data:K11n156/A-polynomial

[edit Notes for K11n156's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus Missing Topological 4 genus Missing Concordance genus $3$ Rasmussen s-Invariant 0

[edit Notes for K11n156's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$-t^{3}+7t^{2}-18t+25-18t^{-1}+7t^{-2}-t^{-3}$
Conway polynomial	$-z^{6}+z^{4}+z^{2}+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 77, 0 }
Jones polynomial	$q^{6}-4q^{5}+7q^{4}-10q^{3}+13q^{2}-13q+12-9q^{-1}+6q^{-2}-2q^{-3}$
HOMFLY-PT polynomial (db, data sources)	$-z^{6}a^{-2}-3z^{4}a^{-2}+z^{4}a^{-4}+3z^{4}-2a^{2}z^{2}-4z^{2}a^{-2}+z^{2}a^{-4}+6z^{2}-a^{2}-a^{-2}+3$
Kauffman polynomial (db, data sources)	$3z^{9}a^{-1}+3z^{9}a^{-3}+12z^{8}a^{-2}+6z^{8}a^{-4}+6z^{8}+4az^{7}-z^{7}a^{-1}-z^{7}a^{-3}+4z^{7}a^{-5}+a^{2}z^{6}-35z^{6}a^{-2}-18z^{6}a^{-4}+z^{6}a^{-6}-15z^{6}-3az^{5}-6z^{5}a^{-1}-14z^{5}a^{-3}-11z^{5}a^{-5}+6a^{2}z^{4}+33z^{4}a^{-2}+14z^{4}a^{-4}-2z^{4}a^{-6}+23z^{4}+3a^{3}z^{3}+3az^{3}+5z^{3}a^{-1}+11z^{3}a^{-3}+6z^{3}a^{-5}-6a^{2}z^{2}-12z^{2}a^{-2}-3z^{2}a^{-4}-15z^{2}-a^{3}z-2az-2za^{-1}-za^{-3}+a^{2}+a^{-2}+3$
The A2 invariant	$-2q^{10}+q^{8}+2q^{6}-2q^{4}+3q^{2}-1+q^{-2}+2q^{-4}-q^{-6}+3q^{-8}-3q^{-10}+q^{-14}-2q^{-16}+q^{-18}$
The G2 invariant	Data:K11n156/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n156 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["K11n156"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$-t^{3}+7t^{2}-18t+25-18t^{-1}+7t^{-2}-t^{-3}$

In[5]:=

Conway[K][z]

Out[5]=

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

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]=

{ 77, 0 }

In[8]:=

Jones[K][q]

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

Out[8]=

$q^{6}-4q^{5}+7q^{4}-10q^{3}+13q^{2}-13q+12-9q^{-1}+6q^{-2}-2q^{-3}$

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

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

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$3z^{9}a^{-1}+3z^{9}a^{-3}+12z^{8}a^{-2}+6z^{8}a^{-4}+6z^{8}+4az^{7}-z^{7}a^{-1}-z^{7}a^{-3}+4z^{7}a^{-5}+a^{2}z^{6}-35z^{6}a^{-2}-18z^{6}a^{-4}+z^{6}a^{-6}-15z^{6}-3az^{5}-6z^{5}a^{-1}-14z^{5}a^{-3}-11z^{5}a^{-5}+6a^{2}z^{4}+33z^{4}a^{-2}+14z^{4}a^{-4}-2z^{4}a^{-6}+23z^{4}+3a^{3}z^{3}+3az^{3}+5z^{3}a^{-1}+11z^{3}a^{-3}+6z^{3}a^{-5}-6a^{2}z^{2}-12z^{2}a^{-2}-3z^{2}a^{-4}-15z^{2}-a^{3}z-2az-2za^{-1}-za^{-3}+a^{2}+a^{-2}+3$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {10_71, K11n179,}

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["K11n156"];

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]=

{ $-t^{3}+7t^{2}-18t+25-18t^{-1}+7t^{-2}-t^{-3}$, $q^{6}-4q^{5}+7q^{4}-10q^{3}+13q^{2}-13q+12-9q^{-1}+6q^{-2}-2q^{-3}$ }

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]=

{10_71, K11n179,}

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:

(1, 0)

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 $4$ $0$ $8$ ${\frac {14}{3}}$ $-{\frac {14}{3}}$ $0$ $0$ $32$ $-32$ ${\frac {32}{3}}$ $0$ ${\frac {56}{3}}$ $-{\frac {56}{3}}$ ${\frac {511}{30}}$ ${\frac {898}{15}}$ $-{\frac {4738}{45}}$ ${\frac {641}{18}}$ $-{\frac {449}{30}}$

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=$0 is the signature of K11n156. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

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

Integral Khovanov Homology (db, data source)

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

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.

K11n155 K11n157