K11a9
From Knot Atlas
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![]() (Knotscape image) | See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.
Visit K11a9's page at Knotilus! Visit K11a9's page at the original Knot Atlas! |
[edit] Knot presentations
| Planar diagram presentation | X4251 X8394 X10,6,11,5 X16,7,17,8 X2,9,3,10 X18,12,19,11 X20,14,21,13 X22,16,1,15 X6,17,7,18 X12,20,13,19 X14,22,15,21 |
| Gauss code | 1, -5, 2, -1, 3, -9, 4, -2, 5, -3, 6, -10, 7, -11, 8, -4, 9, -6, 10, -7, 11, -8 |
| Dowker-Thistlethwaite code | 4 8 10 16 2 18 20 22 6 12 14 |
| A Braid Representative | | ||||
| 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 | t4−5t3 + 10t2−11t + 11−11t−1 + 10t−2−5t−3 + t−4 |
| Conway polynomial | z8 + 3z6 + 1 |
| 2nd Alexander ideal (db, data sources) | {1} |
| Determinant and Signature | { 65, 4 } |
| Jones polynomial | −q9 + 3q8−5q7 + 7q6−9q5 + 10q4−9q3 + 8q2−6q + 4−2q−1 + q−2 |
| HOMFLY-PT polynomial (db, data sources) | z8a−4−2z6a−2 + 6z6a−4−z6a−6−10z4a−2 + 13z4a−4−4z4a−6 + z4−14z2a−2 + 14z2a−4−4z2a−6 + 4z2−6a−2 + 6a−4−2a−6 + 3 |
| Kauffman polynomial (db, data sources) | z10a−2 + z10a−4 + 2z9a−1 + 6z9a−3 + 4z9a−5 + 5z8a−4 + 6z8a−6 + z8−11z7a−1−28z7a−3−11z7a−5 + 6z7a−7−20z6a−2−36z6a−4−16z6a−6 + 6z6a−8−6z6 + 19z5a−1 + 38z5a−3 + 5z5a−5−9z5a−7 + 5z5a−9 + 44z4a−2 + 54z4a−4 + 12z4a−6−7z4a−8 + 3z4a−10 + 12z4−12z3a−1−17z3a−3−z3a−5−z3a−7−4z3a−9 + z3a−11−30z2a−2−29z2a−4−7z2a−6 + z2a−8−z2a−10−10z2 + 2za−1 + 3za−3 + za−5 + za−7 + za−9 + 6a−2 + 6a−4 + 2a−6 + 3 |
| The A2 invariant | q6 + q4 + 1−q−2−q−6−q−8 + 2q−10−q−12 + 3q−14−q−22 + q−24−q−26 |
| The G2 invariant | q26−q24 + 4q22−5q20 + 6q18−5q16 + q14 + 10q12−19q10 + 30q8−29q6 + 19q4 + 4q2−31 + 54q−2−58q−4 + 43q−6−13q−8−24q−10 + 50q−12−58q−14 + 42q−16−14q−18−18q−20 + 34q−22−35q−24 + 12q−26 + 13q−28−30q−30 + 36q−32−26q−34 + q−36 + 26q−38−50q−40 + 57q−42−47q−44 + 21q−46 + 16q−48−43q−50 + 60q−52−55q−54 + 38q−56−5q−58−24q−60 + 39q−62−35q−64 + 19q−66 + 5q−68−15q−70 + 19q−72−7q−74−8q−76 + 18q−78−21q−80 + 16q−82−6q−84−9q−86 + 17q−88−19q−90 + 18q−92−15q−94 + 9q−96−5q−98−5q−100 + 12q−102−22q−104 + 25q−106−20q−108 + 14q−110−q−112−13q−114 + 21q−116−25q−118 + 21q−120−12q−122 + 2q−124 + 6q−126−12q−128 + 14q−130−11q−132 + 8q−134−2q−136−q−138 + 2q−140−4q−142 + 3q−144−2q−146 + q−148 |
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["K11a9"];
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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]=
| t4−5t3 + 10t2−11t + 11−11t−1 + 10t−2−5t−3 + t−4 |
In[5]:=
| Conway[K][z]
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Out[5]=
| z8 + 3z6 + 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]=
| { 65, 4 } |
In[8]:=
| Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
| −q9 + 3q8−5q7 + 7q6−9q5 + 10q4−9q3 + 8q2−6q + 4−2q−1 + q−2 |
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]=
| z8a−4−2z6a−2 + 6z6a−4−z6a−6−10z4a−2 + 13z4a−4−4z4a−6 + z4−14z2a−2 + 14z2a−4−4z2a−6 + 4z2−6a−2 + 6a−4−2a−6 + 3 |
In[10]:=
| Kauffman[K][a, z]
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KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
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Out[10]=
| z10a−2 + z10a−4 + 2z9a−1 + 6z9a−3 + 4z9a−5 + 5z8a−4 + 6z8a−6 + z8−11z7a−1−28z7a−3−11z7a−5 + 6z7a−7−20z6a−2−36z6a−4−16z6a−6 + 6z6a−8−6z6 + 19z5a−1 + 38z5a−3 + 5z5a−5−9z5a−7 + 5z5a−9 + 44z4a−2 + 54z4a−4 + 12z4a−6−7z4a−8 + 3z4a−10 + 12z4−12z3a−1−17z3a−3−z3a−5−z3a−7−4z3a−9 + z3a−11−30z2a−2−29z2a−4−7z2a−6 + z2a−8−z2a−10−10z2 + 2za−1 + 3za−3 + za−5 + za−7 + za−9 + 6a−2 + 6a−4 + 2a−6 + 3 |
[edit] "Similar" Knots (within the Atlas)
Same Alexander/Conway Polynomial: {}
Same Jones Polynomial (up to mirroring,
):
{K11a140,}
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["K11a9"];
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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]=
| { t4−5t3 + 10t2−11t + 11−11t−1 + 10t−2−5t−3 + t−4, −q9 + 3q8−5q7 + 7q6−9q5 + 10q4−9q3 + 8q2−6q + 4−2q−1 + q−2 } |
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]=
| {K11a140,} |
[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 K11a9. 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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