K11n149

K11n148

K11n150

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n149 at Knotilus!

Knot presentations

Planar diagram presentation	X6271 X8394 X10,6,11,5 X18,8,19,7 X16,9,17,10 X11,21,12,20 X13,1,14,22 X4,16,5,15 X2,17,3,18 X19,15,20,14 X21,13,22,12
Gauss code	1, -9, 2, -8, 3, -1, 4, -2, 5, -3, -6, 11, -7, 10, 8, -5, 9, -4, -10, 6, -11, 7
Dowker-Thistlethwaite code	6 8 10 18 16 -20 -22 4 2 -14 -12

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number 2 3-genus 4 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n149/ThurstonBennequinNumber Hyperbolic Volume 11.1363 A-Polynomial See Data:K11n149/A-polynomial

[edit Notes for K11n149's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for K11n149's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$t^{4}-4t^{3}+6t^{2}-4t+3-4t^{-1}+6t^{-2}-4t^{-3}+t^{-4}$
Conway polynomial	$z^{8}+4z^{6}+2z^{4}+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 33, 4 }
Jones polynomial	$q^{8}-2q^{7}+3q^{6}-5q^{5}+5q^{4}-5q^{3}+5q^{2}-3q+3-q^{-1}$
HOMFLY-PT polynomial (db, data sources)	$z^{8}a^{-4}-z^{6}a^{-2}+6z^{6}a^{-4}-z^{6}a^{-6}-4z^{4}a^{-2}+11z^{4}a^{-4}-5z^{4}a^{-6}-2z^{2}a^{-2}+7z^{2}a^{-4}-6z^{2}a^{-6}+z^{2}a^{-8}+2a^{-2}-2a^{-6}+a^{-8}$
Kauffman polynomial (db, data sources)	$2z^{9}a^{-3}+2z^{9}a^{-5}+3z^{8}a^{-2}+6z^{8}a^{-4}+3z^{8}a^{-6}+z^{7}a^{-1}-8z^{7}a^{-3}-8z^{7}a^{-5}+z^{7}a^{-7}-15z^{6}a^{-2}-29z^{6}a^{-4}-14z^{6}a^{-6}-4z^{5}a^{-1}+6z^{5}a^{-3}+9z^{5}a^{-5}-z^{5}a^{-7}+20z^{4}a^{-2}+39z^{4}a^{-4}+22z^{4}a^{-6}+3z^{4}a^{-8}+3z^{3}a^{-1}-z^{3}a^{-3}-8z^{3}a^{-5}-2z^{3}a^{-7}+2z^{3}a^{-9}-6z^{2}a^{-2}-16z^{2}a^{-4}-15z^{2}a^{-6}-4z^{2}a^{-8}+z^{2}a^{-10}+3za^{-3}+5za^{-5}+za^{-7}-za^{-9}-2a^{-2}+2a^{-6}+a^{-8}$
The A2 invariant	$-q^{2}+1+q^{-2}+2q^{-4}+2q^{-6}+q^{-8}+q^{-10}-3q^{-12}-2q^{-16}+q^{-24}-q^{-26}+q^{-28}$
The G2 invariant	Data:K11n149/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n149 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["K11n149"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$t^{4}-4t^{3}+6t^{2}-4t+3-4t^{-1}+6t^{-2}-4t^{-3}+t^{-4}$

In[5]:=

Conway[K][z]

Out[5]=

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

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]=

{ 33, 4 }

In[8]:=

Jones[K][q]

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

Out[8]=

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

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

$z^{8}a^{-4}-z^{6}a^{-2}+6z^{6}a^{-4}-z^{6}a^{-6}-4z^{4}a^{-2}+11z^{4}a^{-4}-5z^{4}a^{-6}-2z^{2}a^{-2}+7z^{2}a^{-4}-6z^{2}a^{-6}+z^{2}a^{-8}+2a^{-2}-2a^{-6}+a^{-8}$

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$2z^{9}a^{-3}+2z^{9}a^{-5}+3z^{8}a^{-2}+6z^{8}a^{-4}+3z^{8}a^{-6}+z^{7}a^{-1}-8z^{7}a^{-3}-8z^{7}a^{-5}+z^{7}a^{-7}-15z^{6}a^{-2}-29z^{6}a^{-4}-14z^{6}a^{-6}-4z^{5}a^{-1}+6z^{5}a^{-3}+9z^{5}a^{-5}-z^{5}a^{-7}+20z^{4}a^{-2}+39z^{4}a^{-4}+22z^{4}a^{-6}+3z^{4}a^{-8}+3z^{3}a^{-1}-z^{3}a^{-3}-8z^{3}a^{-5}-2z^{3}a^{-7}+2z^{3}a^{-9}-6z^{2}a^{-2}-16z^{2}a^{-4}-15z^{2}a^{-6}-4z^{2}a^{-8}+z^{2}a^{-10}+3za^{-3}+5za^{-5}+za^{-7}-za^{-9}-2a^{-2}+2a^{-6}+a^{-8}$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {}

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["K11n149"];

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]=

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

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]=

{}

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 $0$ $-16$ $0$ $-80$ $-16$ $0$ $-{\frac {640}{3}}$ $-{\frac {64}{3}}$ $-48$ $0$ $128$ $0$ $0$ $-136$ $-48$ ${\frac {352}{3}}$ $-{\frac {296}{3}}$ $40$

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 K11n149. 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 17                   1 1 15                 1   -1 13               2 1   1 11             3 1     -2 9           2 2       0 7         3 3         0 5       2 2           0 3     2 4             2 1   1 1               0 -1   2                 2 -3 1                   -1

Integral Khovanov Homology (db, data source)

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

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.

K11n148 K11n150