K11n181

K11n180

K11n182

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n181 at Knotilus!

Knot presentations

Planar diagram presentation	X6271 X3,13,4,12 X5,17,6,16 X14,8,15,7 X9,21,10,20 X11,19,12,18 X13,3,14,2 X22,16,1,15 X17,5,18,4 X19,11,20,10 X21,9,22,8
Gauss code	1, 7, -2, 9, -3, -1, 4, 11, -5, 10, -6, 2, -7, -4, 8, 3, -9, 6, -10, 5, -11, -8
Dowker-Thistlethwaite code	6 -12 -16 14 -20 -18 -2 22 -4 -10 -8

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number [math]\displaystyle{ \{2,3\} }[/math] 3-genus 2 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n181/ThurstonBennequinNumber Hyperbolic Volume 11.345 A-Polynomial See Data:K11n181/A-polynomial

[edit Notes for K11n181's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus Missing Topological 4 genus Missing Concordance genus [math]\displaystyle{ 2 }[/math] Rasmussen s-Invariant -4

[edit Notes for K11n181's four dimensional invariants]

Polynomial invariants

Alexander polynomial	[math]\displaystyle{ 5 t^2-11 t+13-11 t^{-1} +5 t^{-2} }[/math]
Conway polynomial	[math]\displaystyle{ 5 z^4+9 z^2+1 }[/math]
2nd Alexander ideal (db, data sources)	[math]\displaystyle{ \{1\} }[/math]
Determinant and Signature	{ 45, 4 }
Jones polynomial	[math]\displaystyle{ -2 q^{11}+3 q^{10}-5 q^9+7 q^8-7 q^7+8 q^6-6 q^5+4 q^4-2 q^3+q^2 }[/math]
HOMFLY-PT polynomial (db, data sources)	[math]\displaystyle{ z^4 a^{-4} +2 z^4 a^{-6} +2 z^4 a^{-8} +2 z^2 a^{-4} +4 z^2 a^{-6} +5 z^2 a^{-8} -2 z^2 a^{-10} + a^{-6} +3 a^{-8} -3 a^{-10} }[/math]
Kauffman polynomial (db, data sources)	[math]\displaystyle{ z^9 a^{-9} +z^9 a^{-11} +3 z^8 a^{-8} +4 z^8 a^{-10} +z^8 a^{-12} +3 z^7 a^{-7} -3 z^7 a^{-11} +3 z^6 a^{-6} -10 z^6 a^{-8} -15 z^6 a^{-10} -2 z^6 a^{-12} +2 z^5 a^{-5} -6 z^5 a^{-7} -4 z^5 a^{-9} +7 z^5 a^{-11} +3 z^5 a^{-13} +z^4 a^{-4} -6 z^4 a^{-6} +18 z^4 a^{-8} +25 z^4 a^{-10} -3 z^3 a^{-5} +6 z^3 a^{-7} +7 z^3 a^{-9} -12 z^3 a^{-11} -10 z^3 a^{-13} -2 z^2 a^{-4} +5 z^2 a^{-6} -11 z^2 a^{-8} -19 z^2 a^{-10} -z^2 a^{-12} -2 z a^{-9} +5 z a^{-11} +7 z a^{-13} - a^{-6} +3 a^{-8} +3 a^{-10} }[/math]
The A2 invariant	Data:K11n181/QuantumInvariant/A2/1,0
The G2 invariant	Data:K11n181/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n181 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["K11n181"];

In[4]:=

Alexander[K][t]

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

Out[4]=

[math]\displaystyle{ 5 t^2-11 t+13-11 t^{-1} +5 t^{-2} }[/math]

In[5]:=

Conway[K][z]

Out[5]=

[math]\displaystyle{ 5 z^4+9 z^2+1 }[/math]

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]=

[math]\displaystyle{ \{1\} }[/math]

In[7]:=

{KnotDet[K], KnotSignature[K]}

Out[7]=

{ 45, 4 }

In[8]:=

Jones[K][q]

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

Out[8]=

[math]\displaystyle{ -2 q^{11}+3 q^{10}-5 q^9+7 q^8-7 q^7+8 q^6-6 q^5+4 q^4-2 q^3+q^2 }[/math]

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

[math]\displaystyle{ z^4 a^{-4} +2 z^4 a^{-6} +2 z^4 a^{-8} +2 z^2 a^{-4} +4 z^2 a^{-6} +5 z^2 a^{-8} -2 z^2 a^{-10} + a^{-6} +3 a^{-8} -3 a^{-10} }[/math]

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

[math]\displaystyle{ z^9 a^{-9} +z^9 a^{-11} +3 z^8 a^{-8} +4 z^8 a^{-10} +z^8 a^{-12} +3 z^7 a^{-7} -3 z^7 a^{-11} +3 z^6 a^{-6} -10 z^6 a^{-8} -15 z^6 a^{-10} -2 z^6 a^{-12} +2 z^5 a^{-5} -6 z^5 a^{-7} -4 z^5 a^{-9} +7 z^5 a^{-11} +3 z^5 a^{-13} +z^4 a^{-4} -6 z^4 a^{-6} +18 z^4 a^{-8} +25 z^4 a^{-10} -3 z^3 a^{-5} +6 z^3 a^{-7} +7 z^3 a^{-9} -12 z^3 a^{-11} -10 z^3 a^{-13} -2 z^2 a^{-4} +5 z^2 a^{-6} -11 z^2 a^{-8} -19 z^2 a^{-10} -z^2 a^{-12} -2 z a^{-9} +5 z a^{-11} +7 z a^{-13} - a^{-6} +3 a^{-8} +3 a^{-10} }[/math]

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {}

Same Jones Polynomial (up to mirroring, [math]\displaystyle{ q\leftrightarrow q^{-1} }[/math]): {}

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["K11n181"];

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]=

{ [math]\displaystyle{ 5 t^2-11 t+13-11 t^{-1} +5 t^{-2} }[/math], [math]\displaystyle{ -2 q^{11}+3 q^{10}-5 q^9+7 q^8-7 q^7+8 q^6-6 q^5+4 q^4-2 q^3+q^2 }[/math] }

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:

(9, 26)

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 [math]\displaystyle{ 36 }[/math] [math]\displaystyle{ 208 }[/math] [math]\displaystyle{ 648 }[/math] [math]\displaystyle{ 1610 }[/math] [math]\displaystyle{ 278 }[/math] [math]\displaystyle{ 7488 }[/math] [math]\displaystyle{ \frac{40768}{3} }[/math] [math]\displaystyle{ \frac{7264}{3} }[/math] [math]\displaystyle{ 2064 }[/math] [math]\displaystyle{ 7776 }[/math] [math]\displaystyle{ 21632 }[/math] [math]\displaystyle{ 57960 }[/math] [math]\displaystyle{ 10008 }[/math] [math]\displaystyle{ \frac{1159773}{10} }[/math] [math]\displaystyle{ -\frac{1438}{15} }[/math] [math]\displaystyle{ \frac{756026}{15} }[/math] [math]\displaystyle{ \frac{5123}{6} }[/math] [math]\displaystyle{ \frac{70013}{10} }[/math]

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 [math]\displaystyle{ t^rq^j }[/math] are shown, along with their alternating sums [math]\displaystyle{ \chi }[/math] (fixed [math]\displaystyle{ j }[/math], alternation over [math]\displaystyle{ r }[/math]). The squares with yellow highlighting are those on the "critical diagonals", where [math]\displaystyle{ j-2r=s+1 }[/math] or [math]\displaystyle{ j-2r=s-1 }[/math], where [math]\displaystyle{ s= }[/math]4 is the signature of K11n181. 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 χ 23                   2 -2 21                 1   1 19               4 2   -2 17             3 1     2 15           4 4       0 13         4 3         1 11       2 4           2 9     2 4             -2 7     2               2 5 1 2                 -1 3 1                   1

Integral Khovanov Homology (db, data source)

[math]\displaystyle{ \dim{\mathcal G}_{2r+i}\operatorname{KH}^r_{\mathbb Z} }[/math] [math]\displaystyle{ i=3 }[/math] [math]\displaystyle{ i=5 }[/math] [math]\displaystyle{ r=0 }[/math] [math]\displaystyle{ {\mathbb Z} }[/math] [math]\displaystyle{ {\mathbb Z} }[/math] [math]\displaystyle{ r=1 }[/math] [math]\displaystyle{ {\mathbb Z}^{2} }[/math] [math]\displaystyle{ r=2 }[/math] [math]\displaystyle{ {\mathbb Z}^{2}\oplus{\mathbb Z}_2^{2} }[/math] [math]\displaystyle{ {\mathbb Z}^{2} }[/math] [math]\displaystyle{ r=3 }[/math] [math]\displaystyle{ {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{2} }[/math] [math]\displaystyle{ {\mathbb Z}^{2} }[/math] [math]\displaystyle{ r=4 }[/math] [math]\displaystyle{ {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{4} }[/math] [math]\displaystyle{ {\mathbb Z}^{4} }[/math] [math]\displaystyle{ r=5 }[/math] [math]\displaystyle{ {\mathbb Z}^{3}\oplus{\mathbb Z}_2^{4} }[/math] [math]\displaystyle{ {\mathbb Z}^{4} }[/math] [math]\displaystyle{ r=6 }[/math] [math]\displaystyle{ {\mathbb Z}^{4}\oplus{\mathbb Z}_2^{3} }[/math] [math]\displaystyle{ {\mathbb Z}^{3} }[/math] [math]\displaystyle{ r=7 }[/math] [math]\displaystyle{ {\mathbb Z}\oplus{\mathbb Z}_2^{4} }[/math] [math]\displaystyle{ {\mathbb Z}^{4} }[/math] [math]\displaystyle{ r=8 }[/math] [math]\displaystyle{ {\mathbb Z}^{2}\oplus{\mathbb Z}_2 }[/math] [math]\displaystyle{ {\mathbb Z} }[/math] [math]\displaystyle{ r=9 }[/math] [math]\displaystyle{ {\mathbb Z}_2^{2} }[/math] [math]\displaystyle{ {\mathbb Z}^{2} }[/math]

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.

K11n180 K11n182