9 36: Difference between revisions
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{{Vassiliev Invariants}} |
{{Vassiliev Invariants}} |
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{{Khovanov Homology|table=<table border=1> |
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The coefficients of the monomials <math>t^rq^j</math> are shown, along with their alternating sums <math>\chi</math> (fixed <math>j</math>, alternation over <math>r</math>). The squares with <font class=HLYellow>yellow</font> highlighting are those on the "critical diagonals", where <math>j-2r=s+1</math> or <math>j-2r=s+1</math>, where <math>s=</math>{{Data:{{PAGENAME}}/Signature}} is the signature of {{PAGENAME}}. Nonzero entries off the critical diagonals (if any exist) are highlighted in <font class=HLRed>red</font>. |
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<tr align=center><td>1</td><td bgcolor=yellow> </td><td bgcolor=yellow>1</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>-1</td></tr> |
<tr align=center><td>1</td><td bgcolor=yellow> </td><td bgcolor=yellow>1</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>-1</td></tr> |
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<tr align=center><td>-1</td><td bgcolor=yellow>1</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>1</td></tr> |
<tr align=center><td>-1</td><td bgcolor=yellow>1</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>1</td></tr> |
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q t + q t + q t</nowiki></pre></td></tr> |
q t + q t + q t</nowiki></pre></td></tr> |
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</table> |
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[[Category:Knot Page]] |
Revision as of 20:13, 28 August 2005
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![]() |
Visit 9 36's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)
Visit 9 36's page at Knotilus! Visit 9 36's page at the original Knot Atlas! |
Knot presentations
Planar diagram presentation | X1425 X7,10,8,11 X3948 X9,3,10,2 X11,17,12,16 X5,15,6,14 X15,7,16,6 X13,1,14,18 X17,13,18,12 |
Gauss code | -1, 4, -3, 1, -6, 7, -2, 3, -4, 2, -5, 9, -8, 6, -7, 5, -9, 8 |
Dowker-Thistlethwaite code | 4 8 14 10 2 16 18 6 12 |
Conway Notation | [22,3,2] |
Three dimensional invariants
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Four dimensional invariants
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Polynomial invariants
A1 Invariants.
Weight | Invariant |
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1 | |
2 | |
3 | |
4 | |
5 |
A2 Invariants.
Weight | Invariant |
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1,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 1+ q^{-4} + q^{-6} - q^{-8} + q^{-10} -2 q^{-12} + q^{-14} + q^{-16} + q^{-18} +2 q^{-20} - q^{-22} - q^{-26} - q^{-28} } |
1,1 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^4-2 q^2+8-16 q^{-2} +29 q^{-4} -44 q^{-6} +60 q^{-8} -74 q^{-10} +80 q^{-12} -72 q^{-14} +62 q^{-16} -32 q^{-18} +3 q^{-20} +38 q^{-22} -70 q^{-24} +100 q^{-26} -123 q^{-28} +132 q^{-30} -134 q^{-32} +118 q^{-34} -96 q^{-36} +64 q^{-38} -30 q^{-40} +28 q^{-44} -44 q^{-46} +52 q^{-48} -52 q^{-50} +46 q^{-52} -44 q^{-54} +34 q^{-56} -28 q^{-58} +24 q^{-60} -20 q^{-62} +16 q^{-64} -12 q^{-66} +9 q^{-68} -6 q^{-70} +4 q^{-72} -2 q^{-74} + q^{-76} } |
2,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^4-1+2 q^{-4} + q^{-6} -2 q^{-8} - q^{-10} +4 q^{-12} + q^{-14} -2 q^{-16} +2 q^{-18} +3 q^{-20} - q^{-24} +2 q^{-26} +2 q^{-28} - q^{-30} +2 q^{-32} + q^{-34} -4 q^{-36} -3 q^{-38} +2 q^{-40} -2 q^{-42} -3 q^{-44} +2 q^{-46} +4 q^{-48} + q^{-50} -2 q^{-52} + q^{-54} -3 q^{-58} -2 q^{-60} - q^{-62} + q^{-66} + q^{-68} + q^{-70} } |
A3 Invariants.
Weight | Invariant |
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0,1,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 1- q^{-2} +2 q^{-4} +2 q^{-6} -2 q^{-8} +4 q^{-10} + q^{-12} -4 q^{-14} +4 q^{-16} - q^{-18} -5 q^{-20} +4 q^{-22} +2 q^{-24} -3 q^{-26} +3 q^{-28} +3 q^{-30} + q^{-32} - q^{-34} + q^{-36} +3 q^{-38} -5 q^{-40} -2 q^{-42} +4 q^{-44} -6 q^{-46} -2 q^{-48} +5 q^{-50} -3 q^{-52} -2 q^{-54} +3 q^{-56} - q^{-60} + q^{-62} } |
1,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{-1} +2 q^{-5} +2 q^{-9} - q^{-11} -2 q^{-15} - q^{-17} + q^{-21} +3 q^{-23} + q^{-25} +3 q^{-27} - q^{-29} -2 q^{-33} - q^{-35} - q^{-37} } |
A4 Invariants.
Weight | Invariant |
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0,1,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{-2} + q^{-6} +3 q^{-8} + q^{-10} + q^{-12} +3 q^{-14} -3 q^{-18} + q^{-22} -3 q^{-24} - q^{-26} +6 q^{-28} +5 q^{-30} -4 q^{-32} +2 q^{-34} +5 q^{-36} -5 q^{-38} -5 q^{-40} +4 q^{-42} + q^{-44} - q^{-46} +5 q^{-48} +6 q^{-50} - q^{-52} -2 q^{-54} +2 q^{-56} -3 q^{-58} -8 q^{-60} -2 q^{-62} + q^{-64} -4 q^{-66} -2 q^{-68} +2 q^{-70} +2 q^{-72} + q^{-78} + q^{-80} } |
1,0,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{-2} +2 q^{-6} + q^{-8} + q^{-10} +2 q^{-12} - q^{-14} -3 q^{-18} - q^{-20} -2 q^{-22} + q^{-26} +3 q^{-28} +3 q^{-30} +2 q^{-32} +3 q^{-34} - q^{-36} -2 q^{-40} -2 q^{-42} - q^{-44} - q^{-46} } |
B2 Invariants.
Weight | Invariant |
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0,1 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 1- q^{-2} +4 q^{-4} -4 q^{-6} +6 q^{-8} -6 q^{-10} +7 q^{-12} -6 q^{-14} +4 q^{-16} -3 q^{-18} - q^{-20} +4 q^{-22} -8 q^{-24} +11 q^{-26} -11 q^{-28} +13 q^{-30} -11 q^{-32} +11 q^{-34} -7 q^{-36} +5 q^{-38} - q^{-40} -2 q^{-42} +4 q^{-44} -6 q^{-46} +6 q^{-48} -7 q^{-50} +5 q^{-52} -4 q^{-54} +3 q^{-56} -2 q^{-58} + q^{-60} - q^{-62} } |
1,0 |
D4 Invariants.
Weight | Invariant |
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1,0,0,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{-2} - q^{-4} +3 q^{-6} -2 q^{-8} +6 q^{-10} -3 q^{-12} +6 q^{-14} -4 q^{-16} +7 q^{-18} -5 q^{-20} +2 q^{-22} -4 q^{-24} - q^{-28} -4 q^{-30} +4 q^{-32} -6 q^{-34} +9 q^{-36} -7 q^{-38} +12 q^{-40} -6 q^{-42} +12 q^{-44} -7 q^{-46} +9 q^{-48} -5 q^{-50} +4 q^{-52} -4 q^{-54} -2 q^{-56} - q^{-58} -4 q^{-60} +3 q^{-62} -6 q^{-64} +3 q^{-66} -5 q^{-68} +6 q^{-70} -4 q^{-72} +2 q^{-74} -3 q^{-76} +3 q^{-78} - q^{-80} + q^{-82} - q^{-84} + q^{-86} } |
G2 Invariants.
Weight | Invariant |
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1,0 | Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle q^{-2} - q^{-4} +4 q^{-6} -5 q^{-8} +5 q^{-10} -2 q^{-12} -4 q^{-14} +14 q^{-16} -17 q^{-18} +19 q^{-20} -11 q^{-22} -2 q^{-24} +18 q^{-26} -27 q^{-28} +28 q^{-30} -17 q^{-32} + q^{-34} +13 q^{-36} -23 q^{-38} +20 q^{-40} -9 q^{-42} -5 q^{-44} +15 q^{-46} -18 q^{-48} +9 q^{-50} +3 q^{-52} -18 q^{-54} +24 q^{-56} -24 q^{-58} +16 q^{-60} + q^{-62} -18 q^{-64} +32 q^{-66} -33 q^{-68} +28 q^{-70} -9 q^{-72} -10 q^{-74} +25 q^{-76} -28 q^{-78} +24 q^{-80} -7 q^{-82} -7 q^{-84} +19 q^{-86} -16 q^{-88} +6 q^{-90} +6 q^{-92} -16 q^{-94} +18 q^{-96} -11 q^{-98} -2 q^{-100} +11 q^{-102} -18 q^{-104} +20 q^{-106} -15 q^{-108} +4 q^{-110} +3 q^{-112} -12 q^{-114} +12 q^{-116} -13 q^{-118} +10 q^{-120} -5 q^{-122} + q^{-124} +3 q^{-126} -7 q^{-128} +6 q^{-130} -5 q^{-132} +4 q^{-134} -2 q^{-136} + q^{-140} -2 q^{-142} +2 q^{-144} - q^{-146} + q^{-148} } |
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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]:=
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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]:=
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K = Knot["9 36"];
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In[4]:=
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Alexander[K][t]
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KnotTheory::loading: Loading precomputed data in PD4Knots`.
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Out[4]=
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In[5]:=
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Conway[K][z]
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Out[5]=
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In[6]:=
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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]:=
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{KnotDet[K], KnotSignature[K]}
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Out[7]=
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{ 37, 4 } |
In[8]:=
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Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
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In[9]:=
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HOMFLYPT[K][a, z]
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KnotTheory::credits: The HOMFLYPT program was written by Scott Morrison.
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Out[9]=
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In[10]:=
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Kauffman[K][a, z]
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KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
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Out[10]=
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Vassiliev invariants
V2 and V3: | (3, 7) |
V2,1 through V6,9: |
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V2,1 through V6,9 were provided by Petr Dunin-Barkowski <barkovs@itep.ru>, Andrey Smirnov <asmirnov@itep.ru>, and Alexei Sleptsov <sleptsov@itep.ru> and uploaded on October 2010 by User:Drorbn. Note that they are normalized differently than V2 and V3.
Khovanov Homology
The coefficients of the monomials Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle t^rq^j} are shown, along with their alternating sums Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \chi} (fixed Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j} , alternation over Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle r} ). The squares with yellow highlighting are those on the "critical diagonals", where Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j-2r=s+1} or Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j-2r=s-1} , where Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle s=} 4 is the signature of 9 36. 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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Computer Talk
Much of the above data can be recomputed by Mathematica using the package KnotTheory`
. See A Sample KnotTheory` Session.
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \textrm{Include}(\textrm{ColouredJonesM.mhtml})}
In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 17, 2005, 14:44:34)... | |
In[2]:= | Crossings[Knot[9, 36]] |
Out[2]= | 9 |
In[3]:= | PD[Knot[9, 36]] |
Out[3]= | PD[X[1, 4, 2, 5], X[7, 10, 8, 11], X[3, 9, 4, 8], X[9, 3, 10, 2],X[11, 17, 12, 16], X[5, 15, 6, 14], X[15, 7, 16, 6],X[13, 1, 14, 18], X[17, 13, 18, 12]] |
In[4]:= | GaussCode[Knot[9, 36]] |
Out[4]= | GaussCode[-1, 4, -3, 1, -6, 7, -2, 3, -4, 2, -5, 9, -8, 6, -7, 5, -9, 8] |
In[5]:= | BR[Knot[9, 36]] |
Out[5]= | BR[4, {1, 1, 1, -2, 1, 1, 3, -2, 3}] |
In[6]:= | alex = Alexander[Knot[9, 36]][t] |
Out[6]= | -3 5 8 2 3 |
In[7]:= | Conway[Knot[9, 36]][z] |
Out[7]= | 2 4 6 1 + 3 z - z - z |
In[8]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[8]= | {Knot[9, 36]} |
In[9]:= | {KnotDet[Knot[9, 36]], KnotSignature[Knot[9, 36]]} |
Out[9]= | {37, 4} |
In[10]:= | J=Jones[Knot[9, 36]][q] |
Out[10]= | 2 3 4 5 6 7 8 9 1 - 2 q + 4 q - 5 q + 6 q - 6 q + 6 q - 4 q + 2 q - q |
In[11]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[11]= | {Knot[9, 36], Knot[11, NonAlternating, 16]} |
In[12]:= | A2Invariant[Knot[9, 36]][q] |
Out[12]= | 4 6 8 10 12 14 16 18 20 22 26 |
In[13]:= | Kauffman[Knot[9, 36]][a, z] |
Out[13]= | 2 2 2 |
In[14]:= | {Vassiliev[2][Knot[9, 36]], Vassiliev[3][Knot[9, 36]]} |
Out[14]= | {0, 7} |
In[15]:= | Kh[Knot[9, 36]][q, t] |
Out[15]= | 33 5 1 q q 5 7 7 2 9 2 |