K11n72
From Knot Atlas
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 (Knotscape image) | See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.
Visit K11n72's page at Knotilus! Visit K11n72's page at the original Knot Atlas! |
[edit] Knot presentations
| Planar diagram presentation | X4251 X8493 X5,14,6,15 X2837 X20,10,21,9 X16,12,17,11 X13,6,14,7 X18,16,19,15 X12,18,13,17 X22,20,1,19 X10,22,11,21 |
| Gauss code | 1, -4, 2, -1, -3, 7, 4, -2, 5, -11, 6, -9, -7, 3, 8, -6, 9, -8, 10, -5, 11, -10 |
| Dowker-Thistlethwaite code | 4 8 -14 2 20 16 -6 18 12 22 10 |
| 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 | −2t3 + 9t2−18t + 23−18t−1 + 9t−2−2t−3 |
| Conway polynomial | −2z6−3z4 + 1 |
| 2nd Alexander ideal (db, data sources) |  |
| Determinant and Signature | { 81, 4 } |
| Jones polynomial | −q11 + 4q10−7q9 + 11q8−14q7 + 13q6−13q5 + 10q4−5q3 + 3q2 |
| HOMFLY-PT polynomial (db, data sources) | −2z6a−6 + 3z4a−4−9z4a−6 + 3z4a−8 + 9z2a−4−16z2a−6 + 8z2a−8−z2a−10 + 7a−4−11a−6 + 6a−8−a−10 |
| Kauffman polynomial (db, data sources) | z9a−7 + z9a−9 + 4z8a−6 + 8z8a−8 + 4z8a−10 + 3z7a−5 + 11z7a−7 + 14z7a−9 + 6z7a−11−9z6a−6−10z6a−8 + 3z6a−10 + 4z6a−12−6z5a−5−33z5a−7−38z5a−9−10z5a−11 + z5a−13 + 6z4a−4 + 20z4a−6 + 2z4a−8−19z4a−10−7z4a−12 + 11z3a−5 + 42z3a−7 + 37z3a−9 + 5z3a−11−z3a−13−13z2a−4−24z2a−6−3z2a−8 + 11z2a−10 + 3z2a−12−9za−5−21za−7−15za−9−3za−11 + 7a−4 + 11a−6 + 6a−8 + a−10 |
| The A2 invariant | Data:K11n72/QuantumInvariant/A2/1,0 |
| The G2 invariant | Data:K11n72/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["K11n72"];
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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]=
| −2t3 + 9t2−18t + 23−18t−1 + 9t−2−2t−3 |
In[5]:=
| Conway[K][z]
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Out[5]=
| −2z6−3z4 + 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]=
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In[7]:=
| {KnotDet[K], KnotSignature[K]}
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Out[7]=
| { 81, 4 } |
In[8]:=
| Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
| −q11 + 4q10−7q9 + 11q8−14q7 + 13q6−13q5 + 10q4−5q3 + 3q2 |
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]=
| −2z6a−6 + 3z4a−4−9z4a−6 + 3z4a−8 + 9z2a−4−16z2a−6 + 8z2a−8−z2a−10 + 7a−4−11a−6 + 6a−8−a−10 |
In[10]:=
| Kauffman[K][a, z]
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KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
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Out[10]=
| z9a−7 + z9a−9 + 4z8a−6 + 8z8a−8 + 4z8a−10 + 3z7a−5 + 11z7a−7 + 14z7a−9 + 6z7a−11−9z6a−6−10z6a−8 + 3z6a−10 + 4z6a−12−6z5a−5−33z5a−7−38z5a−9−10z5a−11 + z5a−13 + 6z4a−4 + 20z4a−6 + 2z4a−8−19z4a−10−7z4a−12 + 11z3a−5 + 42z3a−7 + 37z3a−9 + 5z3a−11−z3a−13−13z2a−4−24z2a−6−3z2a−8 + 11z2a−10 + 3z2a−12−9za−5−21za−7−15za−9−3za−11 + 7a−4 + 11a−6 + 6a−8 + a−10 |
[edit] "Similar" Knots (within the Atlas)
Same Alexander/Conway Polynomial: {10_87, 10_98, K11a58, K11a165,}
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["K11n72"];
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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]=
| { −2t3 + 9t2−18t + 23−18t−1 + 9t−2−2t−3, −q11 + 4q10−7q9 + 11q8−14q7 + 13q6−13q5 + 10q4−5q3 + 3q2 } |
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]=
| {10_87, 10_98, K11a58, K11a165,} |
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 = 4 is the signature of K11n72. 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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