K11a281

K11a280

K11a282

(Knotscape image)	See the full Hoste-Thistlethwaite Table of 11 Crossing Knots. Visit K11a281 at Knotilus!

Knot presentations

Planar diagram presentation	X6271 X10,3,11,4 X16,6,17,5 X12,8,13,7 X20,10,21,9 X2,11,3,12 X18,13,19,14 X4,16,5,15 X22,17,1,18 X8,20,9,19 X14,21,15,22
Gauss code	1, -6, 2, -8, 3, -1, 4, -10, 5, -2, 6, -4, 7, -11, 8, -3, 9, -7, 10, -5, 11, -9
Dowker-Thistlethwaite code	6 10 16 12 20 2 18 4 22 8 14

A Braid Representative
A Morse Link Presentation

Three dimensional invariants

Symmetry type Reversible Unknotting number $\{1,2\}$ 3-genus 4 Bridge index 3 Super bridge index Missing Nakanishi index Missing Maximal Thurston-Bennequin number Data:K11a281/ThurstonBennequinNumber Hyperbolic Volume 18.3111 A-Polynomial See Data:K11a281/A-polynomial

[edit Notes for K11a281's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for K11a281's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$-t^{4}+6t^{3}-18t^{2}+33t-39+33t^{-1}-18t^{-2}+6t^{-3}-t^{-4}$
Conway polynomial	$-z^{8}-2z^{6}-2z^{4}-z^{2}+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 155, 2 }
Jones polynomial	$q^{7}-4q^{6}+10q^{5}-17q^{4}+22q^{3}-25q^{2}+25q-21+16q^{-1}-9q^{-2}+4q^{-3}-q^{-4}$
HOMFLY-PT polynomial (db, data sources)	$-z^{8}a^{-2}-5z^{6}a^{-2}+z^{6}a^{-4}+2z^{6}-a^{2}z^{4}-11z^{4}a^{-2}+3z^{4}a^{-4}+7z^{4}-2a^{2}z^{2}-12z^{2}a^{-2}+4z^{2}a^{-4}+9z^{2}-a^{2}-5a^{-2}+2a^{-4}+5$
Kauffman polynomial (db, data sources)	$3z^{10}a^{-2}+3z^{10}+6az^{9}+18z^{9}a^{-1}+12z^{9}a^{-3}+4a^{2}z^{8}+24z^{8}a^{-2}+19z^{8}a^{-4}+9z^{8}+a^{3}z^{7}-15az^{7}-41z^{7}a^{-1}-8z^{7}a^{-3}+17z^{7}a^{-5}-13a^{2}z^{6}-81z^{6}a^{-2}-33z^{6}a^{-4}+10z^{6}a^{-6}-51z^{6}-3a^{3}z^{5}+6az^{5}+12z^{5}a^{-1}-25z^{5}a^{-3}-24z^{5}a^{-5}+4z^{5}a^{-7}+15a^{2}z^{4}+71z^{4}a^{-2}+19z^{4}a^{-4}-7z^{4}a^{-6}+z^{4}a^{-8}+59z^{4}+3a^{3}z^{3}+7az^{3}+12z^{3}a^{-1}+22z^{3}a^{-3}+14z^{3}a^{-5}-7a^{2}z^{2}-28z^{2}a^{-2}-7z^{2}a^{-4}+3z^{2}a^{-6}-25z^{2}-a^{3}z-3az-5za^{-1}-6za^{-3}-3za^{-5}+a^{2}+5a^{-2}+2a^{-4}+5$
The A2 invariant	$-q^{12}+q^{10}-2q^{6}+5q^{4}-2q^{2}+3+2q^{-2}-4q^{-4}+4q^{-6}-6q^{-8}+3q^{-10}-q^{-12}-2q^{-14}+4q^{-16}-2q^{-18}+q^{-20}$
The G2 invariant	Data:K11a281/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11a281 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["K11a281"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$-t^{4}+6t^{3}-18t^{2}+33t-39+33t^{-1}-18t^{-2}+6t^{-3}-t^{-4}$

In[5]:=

Conway[K][z]

Out[5]=

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

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]=

{ 155, 2 }

In[8]:=

Jones[K][q]

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

Out[8]=

$q^{7}-4q^{6}+10q^{5}-17q^{4}+22q^{3}-25q^{2}+25q-21+16q^{-1}-9q^{-2}+4q^{-3}-q^{-4}$

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

$-z^{8}a^{-2}-5z^{6}a^{-2}+z^{6}a^{-4}+2z^{6}-a^{2}z^{4}-11z^{4}a^{-2}+3z^{4}a^{-4}+7z^{4}-2a^{2}z^{2}-12z^{2}a^{-2}+4z^{2}a^{-4}+9z^{2}-a^{2}-5a^{-2}+2a^{-4}+5$

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$3z^{10}a^{-2}+3z^{10}+6az^{9}+18z^{9}a^{-1}+12z^{9}a^{-3}+4a^{2}z^{8}+24z^{8}a^{-2}+19z^{8}a^{-4}+9z^{8}+a^{3}z^{7}-15az^{7}-41z^{7}a^{-1}-8z^{7}a^{-3}+17z^{7}a^{-5}-13a^{2}z^{6}-81z^{6}a^{-2}-33z^{6}a^{-4}+10z^{6}a^{-6}-51z^{6}-3a^{3}z^{5}+6az^{5}+12z^{5}a^{-1}-25z^{5}a^{-3}-24z^{5}a^{-5}+4z^{5}a^{-7}+15a^{2}z^{4}+71z^{4}a^{-2}+19z^{4}a^{-4}-7z^{4}a^{-6}+z^{4}a^{-8}+59z^{4}+3a^{3}z^{3}+7az^{3}+12z^{3}a^{-1}+22z^{3}a^{-3}+14z^{3}a^{-5}-7a^{2}z^{2}-28z^{2}a^{-2}-7z^{2}a^{-4}+3z^{2}a^{-6}-25z^{2}-a^{3}z-3az-5za^{-1}-6za^{-3}-3za^{-5}+a^{2}+5a^{-2}+2a^{-4}+5$

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {K11a19, K11a25,}

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["K11a281"];

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]=

{ $-t^{4}+6t^{3}-18t^{2}+33t-39+33t^{-1}-18t^{-2}+6t^{-3}-t^{-4}$, $q^{7}-4q^{6}+10q^{5}-17q^{4}+22q^{3}-25q^{2}+25q-21+16q^{-1}-9q^{-2}+4q^{-3}-q^{-4}$ }

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]=

{K11a19, K11a25,}

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, -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 $-4$ $-16$ $8$ ${\frac {34}{3}}$ ${\frac {62}{3}}$ $64$ ${\frac {512}{3}}$ ${\frac {224}{3}}$ $48$ $-{\frac {32}{3}}$ $128$ $-{\frac {136}{3}}$ $-{\frac {248}{3}}$ ${\frac {10289}{30}}$ ${\frac {314}{5}}$ $-{\frac {542}{45}}$ ${\frac {2287}{18}}$ $-{\frac {751}{30}}$

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 K11a281. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\   r    \    j   \ -5 -4 -3 -2 -1 0 1 2 3 4 5 6 χ 15                       1 1 13                     3   -3 11                   7 1   6 9                 10 3     -7 7               12 7       5 5             13 10         -3 3           12 12           0 1         10 14             4 -1       6 11               -5 -3     3 10                 7 -5   1 6                   -5 -7   3                     3 -9 1                       -1

Integral Khovanov Homology (db, data source)

$\dim {\mathcal {G}}_{2r+i}\operatorname {KH} _{\mathbb {Z} }^{r}$ $i=1$ $i=3$ $r=-5$ ${\mathbb {Z} }$ $r=-4$ ${\mathbb {Z} }^{3}\oplus {\mathbb {Z} }_{2}$ ${\mathbb {Z} }$ $r=-3$ ${\mathbb {Z} }^{6}\oplus {\mathbb {Z} }_{2}^{3}$ ${\mathbb {Z} }^{3}$ $r=-2$ ${\mathbb {Z} }^{10}\oplus {\mathbb {Z} }_{2}^{6}$ ${\mathbb {Z} }^{6}$ $r=-1$ ${\mathbb {Z} }^{11}\oplus {\mathbb {Z} }_{2}^{10}$ ${\mathbb {Z} }^{10}$ $r=0$ ${\mathbb {Z} }^{14}\oplus {\mathbb {Z} }_{2}^{11}$ ${\mathbb {Z} }^{12}$ $r=1$ ${\mathbb {Z} }^{12}\oplus {\mathbb {Z} }_{2}^{13}$ ${\mathbb {Z} }^{13}$ $r=2$ ${\mathbb {Z} }^{10}\oplus {\mathbb {Z} }_{2}^{12}$ ${\mathbb {Z} }^{12}$ $r=3$ ${\mathbb {Z} }^{7}\oplus {\mathbb {Z} }_{2}^{10}$ ${\mathbb {Z} }^{10}$ $r=4$ ${\mathbb {Z} }^{3}\oplus {\mathbb {Z} }_{2}^{7}$ ${\mathbb {Z} }^{7}$ $r=5$ ${\mathbb {Z} }\oplus {\mathbb {Z} }_{2}^{3}$ ${\mathbb {Z} }^{3}$ $r=6$ ${\mathbb {Z} }_{2}$ ${\mathbb {Z} }$

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.

K11a280 K11a282