K11n145
From Knot Atlas
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 (Knotscape image) | See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.
Visit K11n145's page at Knotilus! Visit K11n145's page at the original Knot Atlas! |
[edit] Knot presentations
| Planar diagram presentation | X4251 X14,4,15,3 X5,11,6,10 X7,20,8,21 X9,1,10,22 X18,11,19,12 X2,14,3,13 X15,9,16,8 X17,6,18,7 X12,19,13,20 X21,16,22,17 |
| Gauss code | 1, -7, 2, -1, -3, 9, -4, 8, -5, 3, 6, -10, 7, -2, -8, 11, -9, -6, 10, 4, -11, 5 |
| Dowker-Thistlethwaite code | 4 14 -10 -20 -22 18 2 -8 -6 12 -16 |
| 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 | t3−t2−3t + 7−3t−1−t−2 + t−3 |
| Conway polynomial | z6 + 5z4 + 2z2 + 1 |
| 2nd Alexander ideal (db, data sources) | {1} |
| Determinant and Signature | { 9, 0 } |
| Jones polynomial | −q5 + 2q4−2q3 + 2q2−2q + 2 + q−3−q−4 |
| HOMFLY-PT polynomial (db, data sources) | z6−a2z4 + 6z4−4a2z2−2z2a−2−z2a−4 + 9z2−2a2−2a−2 + 5 |
| Kauffman polynomial (db, data sources) | a2z8 + z8 + a3z7 + az7 + z7a−1 + z7a−3−7a2z6 + z6a−2 + 2z6a−4−8z6−6a3z5−8az5−6z5a−1−3z5a−3 + z5a−5 + 14a2z4−2z4a−2−7z4a−4 + 19z4 + 9a3z3 + 15az3 + 10z3a−1 + z3a−3−3z3a−5−10a2z2−2z2a−2 + 4z2a−4−16z2−3a3z−6az−4za−1 + za−5 + 2a2 + 2a−2 + 5 |
| The A2 invariant | −q12−q10 + q6 + 2q2 + 2 + q−2 + q−4−q−6−q−10 + q−14−q−16 |
| The G2 invariant | Data:K11n145/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["K11n145"];
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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]=
| t3−t2−3t + 7−3t−1−t−2 + t−3 |
In[5]:=
| Conway[K][z]
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Out[5]=
| z6 + 5z4 + 2z2 + 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]=
| { 9, 0 } |
In[8]:=
| Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
| −q5 + 2q4−2q3 + 2q2−2q + 2 + q−3−q−4 |
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]=
| z6−a2z4 + 6z4−4a2z2−2z2a−2−z2a−4 + 9z2−2a2−2a−2 + 5 |
In[10]:=
| Kauffman[K][a, z]
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KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
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Out[10]=
| a2z8 + z8 + a3z7 + az7 + z7a−1 + z7a−3−7a2z6 + z6a−2 + 2z6a−4−8z6−6a3z5−8az5−6z5a−1−3z5a−3 + z5a−5 + 14a2z4−2z4a−2−7z4a−4 + 19z4 + 9a3z3 + 15az3 + 10z3a−1 + z3a−3−3z3a−5−10a2z2−2z2a−2 + 4z2a−4−16z2−3a3z−6az−4za−1 + za−5 + 2a2 + 2a−2 + 5 |
[edit] "Similar" Knots (within the Atlas)
Same Alexander/Conway Polynomial: {}
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["K11n145"];
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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]=
| { t3−t2−3t + 7−3t−1−t−2 + t−3, −q5 + 2q4−2q3 + 2q2−2q + 2 + q−3−q−4 } |
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]=
| {} |
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 K11n145. 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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