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| PD Presentation: | X6172 X16,7,17,8 X4,17,1,18 X10,5,11,6 X14,3,15,4 X18,11,19,12 X20,13,5,14 X12,19,13,20 X2,9,3,10 X8,15,9,16 |
| Gauss Code: | {{1, -9, 5, -3}, {4, -1, 2, -10, 9, -4, 6, -8, 7, -5, 10, -2, 3, -6, 8, -7}} |
| Jones Polynomial: | - q-25/2 + 4q-23/2 - 7q-21/2 + 11q-19/2 - 13q-17/2 + 14q-15/2 - 14q-13/2 + 9q-11/2 - 7q-9/2 + 3q-7/2 - q-5/2 |
| A2 (sl(3)) Invariant: | q-38 - 2q-36 - 2q-34 - 4q-30 + q-28 + q-24 + 5q-22 + q-20 + 6q-18 + q-16 + 2q-12 - 2q-10 + q-8 |
| HOMFLY-PT Polynomial: | - 2a5z3 - a5z5 - 3a7z-1 - 10a7z - 10a7z3 - 3a7z5 + 5a9z-1 + 8a9z + a9z3 - a9z5 - 2a11z-1 + a11z3 |
| Kauffman Polynomial: | 2a5z3 - a5z5 + 5a6z4 - 3a6z6 - 3a7z-1 + 10a7z - 18a7z3 + 16a7z5 - 6a7z7 + 5a8 - 7a8z2 - 2a8z4 + 8a8z6 - 5a8z8 - 5a9z-1 + 14a9z - 27a9z3 + 22a9z5 - 6a9z7 - 2a9z9 + 5a10 - 4a10z2 - 13a10z4 + 20a10z6 - 10a10z8 - 2a11z-1 + 5a11z - 11a11z3 + 16a11z5 - 6a11z7 - 2a11z9 + a12z2 + a12z4 + 5a12z6 - 5a12z8 + a13z - 3a13z3 + 10a13z5 - 6a13z7 - a14 - 2a14z2 + 7a14z4 - 4a14z6 + a15z3 - a15z5 |
| Khovanov Homology: |
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Computer Talk. The data above can be recomputed by Mathematica using the package KnotTheory`. Following setup, the sample Mathematica session below reproduces most of the above data (Mathematica system prompts in blue, human input in red, Mathematica output in black):
In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 30, 2005, 10:15:35)... | |
In[2]:= | Length[Skeleton[L]] |
Out[2]= | 2 |
In[3]:= | Show[DrawMorseLink[Link[10, Alternating, 49]]] |
![]() | |
Out[3]= | -Graphics- |
In[4]:= | PD[L = Link[10, Alternating, 49]] |
Out[4]= | PD[X[6, 1, 7, 2], X[16, 7, 17, 8], X[4, 17, 1, 18], X[10, 5, 11, 6], > X[14, 3, 15, 4], X[18, 11, 19, 12], X[20, 13, 5, 14], X[12, 19, 13, 20], > X[2, 9, 3, 10], X[8, 15, 9, 16]] |
In[5]:= | GaussCode[L] |
Out[5]= | GaussCode[{1, -9, 5, -3}, {4, -1, 2, -10, 9, -4, 6, -8, 7, -5, 10, -2, 3, -6,
> 8, -7}] |
In[6]:= | Jones[L][q] |
Out[6]= | -(25/2) 4 7 11 13 14 14 9 7
-q + ----- - ----- + ----- - ----- + ----- - ----- + ----- - ---- +
23/2 21/2 19/2 17/2 15/2 13/2 11/2 9/2
q q q q q q q q
3 -(5/2)
> ---- - q
7/2
q |
In[7]:= | A2Invariant[L][q] |
Out[7]= | -38 2 2 4 -28 -24 5 -20 6 -16 2 2 -8
q - --- - --- - --- + q + q + --- + q + --- + q + --- - --- + q
36 34 30 22 18 12 10
q q q q q q q |
In[8]:= | HOMFLYPT[Link[10, Alternating, 49]][a, z] |
Out[8]= | 7 9 11
-3 a 5 a 2 a 7 9 5 3 7 3 9 3 11 3
----- + ---- - ----- - 10 a z + 8 a z - 2 a z - 10 a z + a z + a z -
z z z
5 5 7 5 9 5
> a z - 3 a z - a z |
In[9]:= | Kauffman[Link[10, Alternating, 49]][a, z] |
Out[9]= | 7 9 11
8 10 14 3 a 5 a 2 a 7 9 11
5 a + 5 a - a - ---- - ---- - ----- + 10 a z + 14 a z + 5 a z +
z z z
13 8 2 10 2 12 2 14 2 5 3 7 3
> a z - 7 a z - 4 a z + a z - 2 a z + 2 a z - 18 a z -
9 3 11 3 13 3 15 3 6 4 8 4 10 4
> 27 a z - 11 a z - 3 a z + a z + 5 a z - 2 a z - 13 a z +
12 4 14 4 5 5 7 5 9 5 11 5 13 5
> a z + 7 a z - a z + 16 a z + 22 a z + 16 a z + 10 a z -
15 5 6 6 8 6 10 6 12 6 14 6 7 7
> a z - 3 a z + 8 a z + 20 a z + 5 a z - 4 a z - 6 a z -
9 7 11 7 13 7 8 8 10 8 12 8 9 9
> 6 a z - 6 a z - 6 a z - 5 a z - 10 a z - 5 a z - 2 a z -
11 9
> 2 a z |
In[10]:= | Kh[L][q, t] |
Out[10]= | -6 -4 1 3 1 4 3 7 4
q + q + ------- + ------ + ------ + ------ + ------ + ------ + ------ +
26 10 24 9 22 9 22 8 20 8 20 7 18 7
q t q t q t q t q t q t q t
6 7 8 6 6 9 4 5
> ------ + ------ + ------ + ------ + ------ + ------ + ------ + ------ +
18 6 16 6 16 5 14 5 14 4 12 4 12 3 10 3
q t q t q t q t q t q t q t q t
3 4 3
> ------ + ----- + ----
10 2 8 2 6
q t q t q t |
| Dror Bar-Natan: The Knot Atlas: The Thistlethwaite Link Table: The Link L10a49 |
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