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L10n81

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Acknowledgement

L10n81 as Morse Link
DrawMorseLink

PD Presentation: X6172 X2,16,3,15 X3,10,4,11 X5,14,6,15 X11,20,12,13 X13,12,14,5 X19,1,20,4 X8,17,9,18 X16,7,17,8 X18,9,19,10

Gauss Code: {{1, -2, -3, 7}, {-4, -1, 9, -8, 10, 3, -5, 6}, {-6, 4, 2, -9, 8, -10, -7, 5}}

Jones Polynomial: q-10 - 2q-9 + 5q-8 - 6q-7 + 6q-6 - 6q-5 + 6q-4 - 2q-3 + 2q-2

A2 (sl(3)) Invariant: q-30 + 3q-26 + 3q-24 + q-22 + 2q-20 - q-18 + 3q-16 + 3q-14 + 4q-12 + 5q-10 + q-8 + 2q-6

HOMFLY-PT Polynomial: a4z-2 + 7a4 + 7a4z2 + 2a4z4 - 2a6z-2 - 11a6 - 11a6z2 - 5a6z4 - a6z6 + a8z-2 + 4a8 + 3a8z2 + a8z4

Kauffman Polynomial: - a4z-2 + 8a4 - 9a4z2 + 3a4z4 + 2a5z-1 - 11a5z + 9a5z3 - 3a5z5 + a5z7 - 2a6z-2 + 13a6 - 20a6z2 + 12a6z4 - 3a6z6 + a6z8 + 2a7z-1 - 11a7z + 9a7z3 - 5a7z5 + 3a7z7 - a8z-2 + 5a8 - 7a8z2 + 4a8z4 + a8z8 - 2a9z3 + 2a9z7 + 2a10z2 - 4a10z4 + 3a10z6 - 2a11z3 + 2a11z5 + a12 - 2a12z2 + a12z4

Khovanov Homology:
trqj r = -8r = -7r = -6r = -5r = -4r = -3r = -2r = -1r = 0
j = -3        2
j = -5       22
j = -7      4  
j = -9     22  
j = -11    44   
j = -13   33    
j = -15  23     
j = -17  3      
j = -1912       
j = -211        


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]=   
3
In[3]:=
Show[DrawMorseLink[Link[10, NonAlternating, 81]]]
Out[3]=   
 -Graphics- 
In[4]:=
PD[L = Link[10, NonAlternating, 81]]
Out[4]=   
PD[X[6, 1, 7, 2], X[2, 16, 3, 15], X[3, 10, 4, 11], X[5, 14, 6, 15], 
 
>   X[11, 20, 12, 13], X[13, 12, 14, 5], X[19, 1, 20, 4], X[8, 17, 9, 18], 
 
>   X[16, 7, 17, 8], X[18, 9, 19, 10]]
In[5]:=
GaussCode[L]
Out[5]=   
GaussCode[{1, -2, -3, 7}, {-4, -1, 9, -8, 10, 3, -5, 6}, 
 
>   {-6, 4, 2, -9, 8, -10, -7, 5}]
In[6]:=
Jones[L][q]
Out[6]=   
 -10   2    5    6    6    6    6    2    2
q    - -- + -- - -- + -- - -- + -- - -- + --
        9    8    7    6    5    4    3    2
       q    q    q    q    q    q    q    q
In[7]:=
A2Invariant[L][q]
Out[7]=   
 -30    3     3     -22    2     -18    3     3     4     5     -8   2
q    + --- + --- + q    + --- - q    + --- + --- + --- + --- + q   + --
        26    24           20           16    14    12    10          6
       q     q            q            q     q     q     q           q
In[8]:=
HOMFLYPT[Link[10, NonAlternating, 81]][a, z]
Out[8]=   
                       4      6    8
   4       6      8   a    2 a    a       4  2       6  2      8  2      4  4
7 a  - 11 a  + 4 a  + -- - ---- + -- + 7 a  z  - 11 a  z  + 3 a  z  + 2 a  z  - 
                       2     2     2
                      z     z     z
 
       6  4    8  4    6  6
>   5 a  z  + a  z  - a  z
In[9]:=
Kauffman[Link[10, NonAlternating, 81]][a, z]
Out[9]=   
                             4      6    8      5      7
   4       6      8    12   a    2 a    a    2 a    2 a        5         7
8 a  + 13 a  + 5 a  + a   - -- - ---- - -- + ---- + ---- - 11 a  z - 11 a  z - 
                             2     2     2    z      z
                            z     z     z
 
       4  2       6  2      8  2      10  2      12  2      5  3      7  3
>   9 a  z  - 20 a  z  - 7 a  z  + 2 a   z  - 2 a   z  + 9 a  z  + 9 a  z  - 
 
       9  3      11  3      4  4       6  4      8  4      10  4    12  4
>   2 a  z  - 2 a   z  + 3 a  z  + 12 a  z  + 4 a  z  - 4 a   z  + a   z  - 
 
       5  5      7  5      11  5      6  6      10  6    5  7      7  7
>   3 a  z  - 5 a  z  + 2 a   z  - 3 a  z  + 3 a   z  + a  z  + 3 a  z  + 
 
       9  7    6  8    8  8
>   2 a  z  + a  z  + a  z
In[10]:=
Kh[L][q, t]
Out[10]=   
2    2      1        1        2        3        2        3        3
-- + -- + ------ + ------ + ------ + ------ + ------ + ------ + ------ + 
 5    3    21  8    19  8    19  7    17  6    15  6    15  5    13  5
q    q    q   t    q   t    q   t    q   t    q   t    q   t    q   t
 
      3        4        4        2       2       4      2
>   ------ + ------ + ------ + ----- + ----- + ----- + ----
     13  4    11  4    11  3    9  3    9  2    7  2    5
    q   t    q   t    q   t    q  t    q  t    q  t    q  t


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