Rolfsen Splice Base: Difference between revisions
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{{Khovanov Homology|table=<*TabularKh[Kh[K][q, t], KnotSignature[K]+{1,-1}]*>}} |
{{Khovanov Homology|table=<*TabularKh[Kh[K][q, t], KnotSignature[K]+{1,-1}]*>}} |
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===[[Khovanov Homology]]=== |
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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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<center><*TabularKh[Kh[K][q, t], KnotSignature[K]+{1,-1}]*></center> |
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{{Computer Talk Header}} |
{{Computer Talk Header}} |
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Revision as of 19:58, 28 August 2005
- REDIRECT Template:Splice Base Notice
[[Image:Data:Rolfsen Splice Base/Previous Knot.gif|80px|link=Data:Rolfsen Splice Base/Previous Knot]] |
[[Image:Data:Rolfsen Splice Base/Next Knot.gif|80px|link=Data:Rolfsen Splice Base/Next Knot]] |
File:Rolfsen Splice Base.gif | Visit <*n*>&id=<*k*> Rolfsen Splice Base's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)
Visit [<*KnotilusURL[K]*> Rolfsen Splice Base's page] at Knotilus! Visit <*n*>.<*k*>.html Rolfsen Splice Base's page at the original Knot Atlas! |
Rolfsen Splice Base Further Notes and Views
Knot presentations
Three dimensional invariants
|
[edit Notes for Rolfsen Splice Base's three dimensional invariants] |
Four dimensional invariants
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[edit Notes for Rolfsen Splice Base's four dimensional invariants] |
Polynomial invariants
Vassiliev invariants
V2 and V3: | (Data:Rolfsen Splice Base/V 2, Data:Rolfsen Splice Base/V 3) |
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 are shown, along with their alternating sums (fixed , alternation over ). The squares with yellow highlighting are those on the "critical diagonals", where or , where Data:Rolfsen Splice Base/Signature is the signature of Rolfsen Splice Base. Nonzero entries off the critical diagonals (if any exist) are highlighted in red. | Data:Rolfsen Splice Base/KhovanovTable |
Integral Khovanov Homology
(db, data source) |
Data:Rolfsen Splice Base/Integral Khovanov Homology |
Computer Talk
Much of the above data can be recomputed by Mathematica using the package KnotTheory`
. See A Sample KnotTheory` Session.
<*InOut["Crossings[``]", K]*> <*InOut["PD[``]", K]*> <*InOut["GaussCode[``]", K]*> <*InOut["BR[``]", K]*> <*InOut["alex = Alexander[``][t]", K]*> <*InOut["Conway[``][z]", K]*> <*InOut["Select[AllKnots[], (alex === Alexander[#][t])&]"]*> <*InOut["{KnotDet[`1`], KnotSignature[`1`]}", K]*> <*InOut["J=Jones[``][q]", K]*> <*InOut[
"Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]"
]*> <* If[Crossings[K]<=18, Include["ColouredJonesM.mhtml"] ,""] *> <*InOut["A2Invariant[``][q]", K]*> <*InOut["Kauffman[``][a, z]", K]*> <*InOut["{Vassiliev[2][`1`], Vassiliev[3][`1`]}", K ]*> <*InOut["Kh[``][q, t]", K]*>
In[1]:= |
<< KnotTheory` |
<*InOut[1]; KnotTheoryWelcomeMessage[]*> |
<* (* *) *>