K11a15
From Knot Atlas
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![]() (Knotscape image) | See the full Hoste-Thistlethwaite Table of 11 Crossing Knots.
Visit K11a15's page at Knotilus! Visit K11a15's page at the original Knot Atlas! |
[edit] Knot presentations
| Planar diagram presentation | X4251 X8493 X12,5,13,6 X2837 X14,9,15,10 X18,12,19,11 X6,13,7,14 X20,15,21,16 X22,17,1,18 X10,20,11,19 X16,21,17,22 |
| Gauss code | 1, -4, 2, -1, 3, -7, 4, -2, 5, -10, 6, -3, 7, -5, 8, -11, 9, -6, 10, -8, 11, -9 |
| Dowker-Thistlethwaite code | 4 8 12 2 14 18 6 20 22 10 16 |
| 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 + 5t3−13t2 + 22t−25 + 22t−1−13t−2 + 5t−3−t−4 |
| Conway polynomial | −z8−3z6−3z4−z2 + 1 |
| 2nd Alexander ideal (db, data sources) | {1} |
| Determinant and Signature | { 107, -2 } |
| Jones polynomial | −q4 + 3q3−6q2 + 11q−14 + 17q−1−17q−2 + 15q−3−12q−4 + 7q−5−3q−6 + q−7 |
| HOMFLY-PT polynomial (db, data sources) | −a2z8 + a4z6−6a2z6 + 2z6 + 4a4z4−15a2z4−z4a−2 + 9z4 + 6a4z2−18a2z2−3z2a−2 + 14z2 + 3a4−8a2−2a−2 + 8 |
| Kauffman polynomial (db, data sources) | a2z10 + z10 + 5a3z9 + 8az9 + 3z9a−1 + 9a4z8 + 15a2z8 + 3z8a−2 + 9z8 + 9a5z7 + a3z7−15az7−6z7a−1 + z7a−3 + 6a6z6−16a4z6−52a2z6−12z6a−2−42z6 + 3a7z5−15a5z5−25a3z5−9az5−6z5a−1−4z5a−3 + a8z4−6a6z4 + 13a4z4 + 58a2z4 + 16z4a−2 + 54z4−2a7z3 + 14a5z3 + 29a3z3 + 23az3 + 15z3a−1 + 5z3a−3−a8z2 + 3a6z2−7a4z2−33a2z2−9z2a−2−31z2−5a5z−11a3z−10az−6za−1−2za−3 + 3a4 + 8a2 + 2a−2 + 8 |
| The A2 invariant | q20−q18 + 3q16−q14−q12 + q10−5q8 + 2q6−3q4 + 2q2 + 3 + 4q−4−q−6−q−12 |
| The G2 invariant | q114−2q112 + 4q110−6q108 + 6q106−5q104 + 9q100−19q98 + 29q96−37q94 + 33q92−20q90−5q88 + 44q86−78q84 + 105q82−114q80 + 87q78−31q76−56q74 + 155q72−222q70 + 240q68−180q66 + 52q64 + 114q62−253q60 + 318q58−267q56 + 116q54 + 78q52−231q50 + 278q48−189q46 + 10q44 + 180q42−295q40 + 259q38−97q36−144q34 + 352q32−446q30 + 366q28−152q26−136q24 + 378q22−501q20 + 449q18−254q16−18q14 + 262q12−389q10 + 367q8−197q6−28q4 + 220q2−291 + 223q−2−32q−4−173q−6 + 318q−8−320q−10 + 188q−12 + 29q−14−235q−16 + 359q−18−346q−20 + 222q−22−39q−24−136q−26 + 236q−28−246q−30 + 181q−32−80q−34−17q−36 + 76q−38−97q−40 + 81q−42−48q−44 + 17q−46 + 5q−48−16q−50 + 14q−52−11q−54 + 6q−56−2q−58 + q−60 |
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["K11a15"];
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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 + 5t3−13t2 + 22t−25 + 22t−1−13t−2 + 5t−3−t−4 |
In[5]:=
| Conway[K][z]
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Out[5]=
| −z8−3z6−3z4−z2 + 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]=
| { 107, -2 } |
In[8]:=
| Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
| −q4 + 3q3−6q2 + 11q−14 + 17q−1−17q−2 + 15q−3−12q−4 + 7q−5−3q−6 + q−7 |
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]=
| −a2z8 + a4z6−6a2z6 + 2z6 + 4a4z4−15a2z4−z4a−2 + 9z4 + 6a4z2−18a2z2−3z2a−2 + 14z2 + 3a4−8a2−2a−2 + 8 |
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 + 5a3z9 + 8az9 + 3z9a−1 + 9a4z8 + 15a2z8 + 3z8a−2 + 9z8 + 9a5z7 + a3z7−15az7−6z7a−1 + z7a−3 + 6a6z6−16a4z6−52a2z6−12z6a−2−42z6 + 3a7z5−15a5z5−25a3z5−9az5−6z5a−1−4z5a−3 + a8z4−6a6z4 + 13a4z4 + 58a2z4 + 16z4a−2 + 54z4−2a7z3 + 14a5z3 + 29a3z3 + 23az3 + 15z3a−1 + 5z3a−3−a8z2 + 3a6z2−7a4z2−33a2z2−9z2a−2−31z2−5a5z−11a3z−10az−6za−1−2za−3 + 3a4 + 8a2 + 2a−2 + 8 |
[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["K11a15"];
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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 + 5t3−13t2 + 22t−25 + 22t−1−13t−2 + 5t−3−t−4, −q4 + 3q3−6q2 + 11q−14 + 17q−1−17q−2 + 15q−3−12q−4 + 7q−5−3q−6 + q−7 } |
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 = -2 is the signature of K11a15. 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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