Heegaard Floer Knot Homology: Difference between revisions

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(New page: {{Manual TOC Sidebar}} {{Startup Note}} <!--$$ToExpression[Import["http://katlas.org/wiki/InterfaceToDroz.m&action=raw"]]$$--> <!--Robot Land, no human edits to "END"--> <!--END--> <!--...)
 
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{{In|
n = 1 |
in = <nowiki>ToExpression[Import["http://katlas.org/wiki/InterfaceToDroz.m&action=raw"]]</nowiki>}}
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<!--$$?HFK$$-->
<!--$$?HFK$$-->
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{{HelpAndAbout|
n = 2 |
n1 = 3 |
in = <nowiki>HFK</nowiki> |
out= <nowiki>HFK[K][q,t] returns the Poincare polynomial of the Heegaard-Floer Knot Homology of the knot K, in the Alexander variable q and the Maslov variable t.</nowiki> |
about= <nowiki>The Heegaard-Floer Knot Homology program was written by Jean-Marie Droz in 2007 at the University of Zurich.</nowiki>}}
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<!--$$hfk = HFK[K = Knot[7, 7]][q, t]$$-->
<!--$$hfk = HFK[K = Knot[7, 7]][q, t]$$-->
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{{InOut|
n = 4 |
in = <nowiki>hfk = HFK[K = Knot[7, 7]][q, t]</nowiki> |
out= <nowiki> 1 5 2 2
9 + ----- + --- + 5 q t + q t
2 2 q t
q t</nowiki>}}
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<!--$${hfk /. t -> -1, Alexander[K][q]}$$-->
<!--$${hfk /. t -> -1, Alexander[K][q]}$$-->
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{{InOut|
n = 5 |
in = <nowiki>{hfk /. t -> -1, Alexander[K][q]}</nowiki> |
out= <nowiki> -2 5 2 -2 5 2
{9 + q - - - 5 q + q , 9 + q - - - 5 q + q }
q q</nowiki>}}
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Revision as of 19:23, 2 December 2007


(For In[1] see Setup)

In[1]:= ToExpression[Import["http://katlas.org/wiki/InterfaceToDroz.m&action=raw"]]
In[2]:= ?HFK
HFK[K][q,t] returns the Poincare polynomial of the Heegaard-Floer Knot Homology of the knot K, in the Alexander variable q and the Maslov variable t.
In[3]:= HFK::about
The Heegaard-Floer Knot Homology program was written by Jean-Marie Droz in 2007 at the University of Zurich.
In[4]:= hfk = HFK[K = Knot[7, 7]][q, t]
Out[4]= 1 5 2 2 9 + ----- + --- + 5 q t + q t 2 2 q t q t
In[5]:= {hfk /. t -> -1, Alexander[K][q]}
Out[5]= -2 5 2 -2 5 2 {9 + q - - - 5 q + q , 9 + q - - - 5 q + q } q q