K11n13

K11n12

K11n14

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11n13 at Knotilus!

Knot presentations

Planar diagram presentation	X4251 X8394 X10,6,11,5 X16,8,17,7 X2,9,3,10 X11,19,12,18 X13,21,14,20 X6,16,7,15 X17,1,18,22 X19,13,20,12 X21,15,22,14
Gauss code	1, -5, 2, -1, 3, -8, 4, -2, 5, -3, -6, 10, -7, 11, 8, -4, -9, 6, -10, 7, -11, 9
Dowker-Thistlethwaite code	4 8 10 16 2 -18 -20 6 -22 -12 -14

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number 3 3-genus 4 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11n13/ThurstonBennequinNumber Hyperbolic Volume 6.56631 A-Polynomial See Data:K11n13/A-polynomial

[edit Notes for K11n13's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus Missing Topological 4 genus Missing Concordance genus [math]\displaystyle{ 4 }[/math] Rasmussen s-Invariant -6

[edit Notes for K11n13's four dimensional invariants]

Polynomial invariants

Alexander polynomial	[math]\displaystyle{ -t^4+3 t^3-2 t^2+t-1+ t^{-1} -2 t^{-2} +3 t^{-3} - t^{-4} }[/math]
Conway polynomial	[math]\displaystyle{ -z^8-5 z^6-4 z^4+4 z^2+1 }[/math]
2nd Alexander ideal (db, data sources)	[math]\displaystyle{ \{1\} }[/math]
Determinant and Signature	{ 15, 6 }
Jones polynomial	[math]\displaystyle{ -q^{10}+q^9-q^8+2 q^7-2 q^6+2 q^5-2 q^4+2 q^3-q^2+q }[/math]
HOMFLY-PT polynomial (db, data sources)	[math]\displaystyle{ -z^8 a^{-6} +z^6 a^{-4} -7 z^6 a^{-6} +z^6 a^{-8} +6 z^4 a^{-4} -16 z^4 a^{-6} +6 z^4 a^{-8} +10 z^2 a^{-4} -15 z^2 a^{-6} +10 z^2 a^{-8} -z^2 a^{-10} +4 a^{-4} -6 a^{-6} +5 a^{-8} -2 a^{-10} }[/math]
Kauffman polynomial (db, data sources)	[math]\displaystyle{ z^9 a^{-5} +z^9 a^{-7} +z^8 a^{-4} +3 z^8 a^{-6} +2 z^8 a^{-8} -6 z^7 a^{-5} -5 z^7 a^{-7} +z^7 a^{-9} -7 z^6 a^{-4} -19 z^6 a^{-6} -12 z^6 a^{-8} +10 z^5 a^{-5} +6 z^5 a^{-7} -4 z^5 a^{-9} +16 z^4 a^{-4} +37 z^4 a^{-6} +23 z^4 a^{-8} +2 z^4 a^{-10} -4 z^3 a^{-5} -2 z^3 a^{-7} +3 z^3 a^{-9} +z^3 a^{-11} -14 z^2 a^{-4} -26 z^2 a^{-6} -19 z^2 a^{-8} -6 z^2 a^{-10} +z^2 a^{-12} +z a^{-7} -z a^{-9} -z a^{-11} +z a^{-13} +4 a^{-4} +6 a^{-6} +5 a^{-8} +2 a^{-10} }[/math]
The A2 invariant	[math]\displaystyle{ q^{-4} + q^{-6} + q^{-8} + q^{-10} - q^{-16} - q^{-20} + q^{-22} + q^{-24} + q^{-26} - q^{-30} - q^{-34} }[/math]
The G2 invariant	Data:K11n13/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11n13 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["K11n13"];

In[4]:=

Alexander[K][t]

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

Out[4]=

[math]\displaystyle{ -t^4+3 t^3-2 t^2+t-1+ t^{-1} -2 t^{-2} +3 t^{-3} - t^{-4} }[/math]

In[5]:=

Conway[K][z]

Out[5]=

[math]\displaystyle{ -z^8-5 z^6-4 z^4+4 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]=

{ 15, 6 }

In[8]:=

Jones[K][q]

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

Out[8]=

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

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

[math]\displaystyle{ -z^8 a^{-6} +z^6 a^{-4} -7 z^6 a^{-6} +z^6 a^{-8} +6 z^4 a^{-4} -16 z^4 a^{-6} +6 z^4 a^{-8} +10 z^2 a^{-4} -15 z^2 a^{-6} +10 z^2 a^{-8} -z^2 a^{-10} +4 a^{-4} -6 a^{-6} +5 a^{-8} -2 a^{-10} }[/math]

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

[math]\displaystyle{ z^9 a^{-5} +z^9 a^{-7} +z^8 a^{-4} +3 z^8 a^{-6} +2 z^8 a^{-8} -6 z^7 a^{-5} -5 z^7 a^{-7} +z^7 a^{-9} -7 z^6 a^{-4} -19 z^6 a^{-6} -12 z^6 a^{-8} +10 z^5 a^{-5} +6 z^5 a^{-7} -4 z^5 a^{-9} +16 z^4 a^{-4} +37 z^4 a^{-6} +23 z^4 a^{-8} +2 z^4 a^{-10} -4 z^3 a^{-5} -2 z^3 a^{-7} +3 z^3 a^{-9} +z^3 a^{-11} -14 z^2 a^{-4} -26 z^2 a^{-6} -19 z^2 a^{-8} -6 z^2 a^{-10} +z^2 a^{-12} +z a^{-7} -z a^{-9} -z a^{-11} +z a^{-13} +4 a^{-4} +6 a^{-6} +5 a^{-8} +2 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]): {9_2,}

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["K11n13"];

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

{9_2,}

Vassiliev invariants

V2 and V3:

(4, 10)

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{ 16 }[/math] [math]\displaystyle{ 80 }[/math] [math]\displaystyle{ 128 }[/math] [math]\displaystyle{ \frac{1448}{3} }[/math] [math]\displaystyle{ \frac{280}{3} }[/math] [math]\displaystyle{ 1280 }[/math] [math]\displaystyle{ \frac{8960}{3} }[/math] [math]\displaystyle{ \frac{1760}{3} }[/math] [math]\displaystyle{ 464 }[/math] [math]\displaystyle{ \frac{2048}{3} }[/math] [math]\displaystyle{ 3200 }[/math] [math]\displaystyle{ \frac{23168}{3} }[/math] [math]\displaystyle{ \frac{4480}{3} }[/math] [math]\displaystyle{ \frac{279542}{15} }[/math] [math]\displaystyle{ \frac{2392}{15} }[/math] [math]\displaystyle{ \frac{371768}{45} }[/math] [math]\displaystyle{ \frac{1306}{9} }[/math] [math]\displaystyle{ \frac{16742}{15} }[/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]6 is the signature of K11n13. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

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

Integral Khovanov Homology (db, data source)

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

K11n12 K11n14