K11a201
From Knot Atlas
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 (Knotscape image) | See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.
Visit K11a201's page at Knotilus! Visit K11a201's page at the original Knot Atlas! |
[edit] Knot presentations
| Planar diagram presentation | X4251 X12,3,13,4 X16,6,17,5 X14,8,15,7 X20,9,21,10 X18,11,19,12 X2,13,3,14 X6,16,7,15 X22,18,1,17 X10,19,11,20 X8,21,9,22 |
| Gauss code | 1, -7, 2, -1, 3, -8, 4, -11, 5, -10, 6, -2, 7, -4, 8, -3, 9, -6, 10, -5, 11, -9 |
| Dowker-Thistlethwaite code | 4 12 16 14 20 18 2 6 22 10 8 |
| A Braid Representative |
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| A Morse Link Presentation | 
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[edit] Three dimensional invariants
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[edit] Four dimensional invariants
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[edit] Polynomial invariants
| Alexander polynomial | 4t2−20t + 33−20t−1 + 4t−2 |
| Conway polynomial | 4z4−4z2 + 1 |
| 2nd Alexander ideal (db, data sources) | {1} |
| Determinant and Signature | { 81, 0 } |
| Jones polynomial | −q5 + 3q4−5q3 + 9q2−11q + 13−13q−1 + 10q−2−8q−3 + 5q−4−2q−5 + q−6 |
| HOMFLY-PT polynomial (db, data sources) | a6−2z2a4 + z4a2−2z2a2−2a2 + 2z4 + z2 + 1 + z4a−2 + a−2−z2a−4 |
| Kauffman polynomial (db, data sources) | a2z10 + z10 + 3a3z9 + 6az9 + 3z9a−1 + 3a4z8 + 3a2z8 + 4z8a−2 + 4z8 + 2a5z7−10a3z7−22az7−6z7a−1 + 4z7a−3 + a6z6−9a4z6−19a2z6−8z6a−2 + 3z6a−4−20z6−6a5z5 + 16a3z5 + 39az5 + 8z5a−1−8z5a−3 + z5a−5−4a6z4 + 7a4z4 + 33a2z4 + 6z4a−2−7z4a−4 + 35z4 + 3a5z3−18a3z3−32az3−6z3a−1 + 3z3a−3−2z3a−5 + 4a6z2−3a4z2−21a2z2−z2a−2 + 3z2a−4−18z2 + 8a3z + 12az + 4za−1−a6 + 2a2−a−2 + 1 |
| The A2 invariant | Data:K11a201/QuantumInvariant/A2/1,0 |
| The G2 invariant | Data:K11a201/QuantumInvariant/G2/1,0 |
Further 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`
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Loading KnotTheory` version of August 31, 2006, 11:25:27.5625.
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In[3]:=
| K = Knot["K11a201"];
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In[4]:=
| Alexander[K][t]
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KnotTheory::loading: Loading precomputed data in PD4Knots`.
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Out[4]=
| 4t2−20t + 33−20t−1 + 4t−2 |
In[5]:=
| Conway[K][z]
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Out[5]=
| 4z4−4z2 + 1 |
In[6]:=
| Alexander[K, 2][t]
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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.
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Out[6]=
| {1} |
In[7]:=
| {KnotDet[K], KnotSignature[K]}
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Out[7]=
| { 81, 0 } |
In[8]:=
| Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
| −q5 + 3q4−5q3 + 9q2−11q + 13−13q−1 + 10q−2−8q−3 + 5q−4−2q−5 + q−6 |
In[9]:=
| HOMFLYPT[K][a, z]
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KnotTheory::credits: The HOMFLYPT program was written by Scott Morrison.
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Out[9]=
| a6−2z2a4 + z4a2−2z2a2−2a2 + 2z4 + z2 + 1 + z4a−2 + a−2−z2a−4 |
In[10]:=
| Kauffman[K][a, z]
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KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
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Out[10]=
| a2z10 + z10 + 3a3z9 + 6az9 + 3z9a−1 + 3a4z8 + 3a2z8 + 4z8a−2 + 4z8 + 2a5z7−10a3z7−22az7−6z7a−1 + 4z7a−3 + a6z6−9a4z6−19a2z6−8z6a−2 + 3z6a−4−20z6−6a5z5 + 16a3z5 + 39az5 + 8z5a−1−8z5a−3 + z5a−5−4a6z4 + 7a4z4 + 33a2z4 + 6z4a−2−7z4a−4 + 35z4 + 3a5z3−18a3z3−32az3−6z3a−1 + 3z3a−3−2z3a−5 + 4a6z2−3a4z2−21a2z2−z2a−2 + 3z2a−4−18z2 + 8a3z + 12az + 4za−1−a6 + 2a2−a−2 + 1 |
[edit] "Similar" Knots (within the Atlas)
Same Alexander/Conway Polynomial: {K11a103,}
Same Jones Polynomial (up to mirroring, 
):
{}
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`
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Loading KnotTheory` version of May 31, 2006, 14:15:20.091.
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In[3]:=
| K = Knot["K11a201"];
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In[4]:=
| {A = Alexander[K][t], J = Jones[K][q]}
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KnotTheory::loading: Loading precomputed data in PD4Knots`.
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[4]=
| { 4t2−20t + 33−20t−1 + 4t−2, −q5 + 3q4−5q3 + 9q2−11q + 13−13q−1 + 10q−2−8q−3 + 5q−4−2q−5 + q−6 } |
In[5]:=
| DeleteCases[Select[AllKnots[], (A === Alexander[#][t]) &], K]
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KnotTheory::loading: Loading precomputed data in DTCode4KnotsTo11`.
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KnotTheory::credits: The GaussCode to PD conversion was written by Siddarth Sankaran at the University of Toronto in the summer of 2005.
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Out[5]=
| {K11a103,} |
In[6]:=
| DeleteCases[
Select[
AllKnots[],
(J === Jones[#][q] || (J /. q -> 1/q) === Jones[#][q]) &
],
K
]
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KnotTheory::loading: Loading precomputed data in Jones4Knots11`.
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Out[6]=
| {} |
[edit] Khovanov Homology
| The coefficients of the monomials trqj 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−2r = s + 1 or j−2r = s−1, where s = 0 is the signature of K11a201. Nonzero entries off the critical diagonals (if any exist) are highlighted in red. |
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| Integral Khovanov Homology
(db, data source) |
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[edit] Computer Talk
Much of the above data can be recomputed by Mathematica using the packageKnotTheory`. See A Sample KnotTheory` Session.
[edit] 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. |
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