K11a293

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K11a292

K11a294

1 Knot presentations
2 Three dimensional invariants
3 Four dimensional invariants
4 Polynomial invariants
5 "Similar" Knots (within the Atlas)
6 Vassiliev invariants
7 Khovanov Homology
8 Computer Talk
9 Modifying This Page

(Knotscape image)

See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.

Visit K11a293's page at Knotilus!

Visit K11a293's page at the original Knot Atlas!

[edit K11a293 Quick Notes]

[edit K11a293 Further Notes and Views]

[edit] Knot presentations

Planar diagram presentation	X₆₂₇₁ X_10,4,11,3 X_16,5,17,6 X_22,8,1,7 X_4,10,5,9 X_18,11,19,12 X_20,13,21,14 X_8,15,9,16 X_2,17,3,18 X_12,19,13,20 X_14,21,15,22
Gauss code	1, -9, 2, -5, 3, -1, 4, -8, 5, -2, 6, -10, 7, -11, 8, -3, 9, -6, 10, -7, 11, -4
Dowker-Thistlethwaite code	6 10 16 22 4 18 20 8 2 12 14

A Braid Representative

A Morse Link Presentation

[edit] Three dimensional invariants

Symmetry type	Reversible
Unknotting number	${2,3}$
3-genus	4
Bridge index	Missing
Super bridge index	Missing
Nakanishi index	Missing
Maximal Thurston-Bennequin number	Data:K11a293/ThurstonBennequinNumber
Hyperbolic Volume	13.4596
A-Polynomial	See Data:K11a293/A-polynomial

[edit Notes for K11a293's three dimensional invariants]

[edit] Four dimensional invariants

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

[edit Notes for K11a293's four dimensional invariants]

[edit] Polynomial invariants

Alexander polynomial	$t 4 -5 t 3 + 12 t 2 -15 t + 15-15 t -1 + 12 t -2 -5 t -3 + t -4$
Conway polynomial	$z 8 + 3 z 6 + 2 z 4 + 4 z 2 + 1$
2nd Alexander ideal (db, data sources)	${3, t + 1}$
Determinant and Signature	{ 81, -4 }
Jones polynomial	$q 2 -3 q + 5-8 q -1 + 11 q -2 -11 q -3 + 13 q -4 -11 q -5 + 8 q -6 -6 q -7 + 3 q -8 - q -9$
HOMFLY-PT polynomial (db, data sources)	$a 4 z 8 - a 6 z 6 + 6 a 4 z 6 -2 a 2 z 6 -4 a 6 z 4 + 14 a 4 z 4 -9 a 2 z 4 + z 4 -5 a 6 z 2 + 17 a 4 z 2 -11 a 2 z 2 + 3 z 2 -4 a 6 + 8 a 4 -4 a 2 + 1$
Kauffman polynomial (db, data sources)	$z 3 a 11 + 3 z 4 a 10 + 6 z 5 a 9 -5 z 3 a 9 + 2 z a 9 + 8 z 6 a 8 -10 z 4 a 8 + 2 z 2 a 8 + 9 z 7 a 7 -16 z 5 a 7 + 4 z 3 a 7 -2 z a 7 + 9 z 8 a 6 -24 z 6 a 6 + 18 z 4 a 6 -11 z 2 a 6 + 4 a 6 + 6 z 9 a 5 -15 z 7 a 5 + z 5 a 5 + 10 z 3 a 5 -6 z a 5 + 2 z 10 a 4 + 3 z 8 a 4 -36 z 6 a 4 + 51 z 4 a 4 -25 z 2 a 4 + 8 a 4 + 9 z 9 a 3 -40 z 7 a 3 + 50 z 5 a 3 -15 z 3 a 3 -2 z a 3 + 2 z 10 a 2 -5 z 8 a 2 -9 z 6 a 2 + 28 z 4 a 2 -17 z 2 a 2 + 4 a 2 + 3 z 9 a -16 z 7 a + 27 z 5 a -15 z 3 a + z 8 -5 z 6 + 8 z 4 -5 z 2 + 1$
The A2 invariant	$- q 26 + q 24 -2 q 22 - q 20 - q 18 - q 16 + 4 q 14 + 4 q 10 + q 8 + q 4 -2 q 2 - q -2 + q -6$
The G2 invariant	Data:K11a293/QuantumInvariant/G2/1,0

Further Quantum Invariants

K11a293 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.

In[3]:= K = Knot["K11a293"];

In[4]:= Alexander[K][t]

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

Out[4]= $t 4 -5 t 3 + 12 t 2 -15 t + 15-15 t -1 + 12 t -2 -5 t -3 + t -4$

In[5]:= Conway[K][z]

Out[5]= $z 8 + 3 z 6 + 2 z 4 + 4 z 2 + 1$

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]= ${3, t + 1}$

In[7]:= {KnotDet[K], KnotSignature[K]}

Out[7]= { 81, -4 }

In[8]:= Jones[K][q]

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

Out[8]= $q 2 -3 q + 5-8 q -1 + 11 q -2 -11 q -3 + 13 q -4 -11 q -5 + 8 q -6 -6 q -7 + 3 q -8 - q -9$

In[9]:= HOMFLYPT[K][a, z]

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

Out[9]= $a 4 z 8 - a 6 z 6 + 6 a 4 z 6 -2 a 2 z 6 -4 a 6 z 4 + 14 a 4 z 4 -9 a 2 z 4 + z 4 -5 a 6 z 2 + 17 a 4 z 2 -11 a 2 z 2 + 3 z 2 -4 a 6 + 8 a 4 -4 a 2 + 1$

In[10]:= Kauffman[K][a, z]

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

Out[10]= $z 3 a 11 + 3 z 4 a 10 + 6 z 5 a 9 -5 z 3 a 9 + 2 z a 9 + 8 z 6 a 8 -10 z 4 a 8 + 2 z 2 a 8 + 9 z 7 a 7 -16 z 5 a 7 + 4 z 3 a 7 -2 z a 7 + 9 z 8 a 6 -24 z 6 a 6 + 18 z 4 a 6 -11 z 2 a 6 + 4 a 6 + 6 z 9 a 5 -15 z 7 a 5 + z 5 a 5 + 10 z 3 a 5 -6 z a 5 + 2 z 10 a 4 + 3 z 8 a 4 -36 z 6 a 4 + 51 z 4 a 4 -25 z 2 a 4 + 8 a 4 + 9 z 9 a 3 -40 z 7 a 3 + 50 z 5 a 3 -15 z 3 a 3 -2 z a 3 + 2 z 10 a 2 -5 z 8 a 2 -9 z 6 a 2 + 28 z 4 a 2 -17 z 2 a 2 + 4 a 2 + 3 z 9 a -16 z 7 a + 27 z 5 a -15 z 3 a + z 8 -5 z 6 + 8 z 4 -5 z 2 + 1$

[edit] "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.

In[3]:= K = Knot["K11a293"];

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]= { $t 4 -5 t 3 + 12 t 2 -15 t + 15-15 t -1 + 12 t -2 -5 t -3 + t -4$ , $q 2 -3 q + 5-8 q -1 + 11 q -2 -11 q -3 + 13 q -4 -11 q -5 + 8 q -6 -6 q -7 + 3 q -8 - q -9$ }

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]= {}

[edit] Vassiliev invariants

V₂ and V₃:

(4, -8)

[edit] Khovanov Homology

The coefficients of the monomials

t r q j

are shown, along with their alternating sums

χ

(fixed

j

, alternation over

r

). The squares with yellow highlighting are those on the "critical diagonals", where

j -2 r = s + 1

j -2 r = s -1

, where

s =

-4 is the signature of K11a293. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\		r
	\
j		\

-7

-6

-5

-4

-3

-2

-1

-2

-1

-3

-5

-7

-9

-11

-3

-13

-15

-3

-17

-19

-1

Integral Khovanov Homology

(db, data source)

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