© | Dror Bar-Natan: The Knot Atlas: The Thistlethwaite Link Table:
L11a89
L11a89
L11a91
L11a91
L11a90
Knotscape
This page is passe. Go here instead!

The 2-Component Link

L11a90

Visit L11a90's page at Knotilus!

Acknowledgement

L11a90 as Morse Link
DrawMorseLink

PD Presentation: X6172 X12,4,13,3 X18,8,19,7 X20,10,21,9 X22,15,5,16 X8,20,9,19 X16,21,17,22 X14,12,15,11 X10,18,11,17 X2536 X4,14,1,13

Gauss Code: {{1, -10, 2, -11}, {10, -1, 3, -6, 4, -9, 8, -2, 11, -8, 5, -7, 9, -3, 6, -4, 7, -5}}

Jones Polynomial: - q-5/2 + 2q-3/2 - 6q-1/2 + 9q1/2 - 13q3/2 + 16q5/2 - 17q7/2 + 15q9/2 - 12q11/2 + 8q13/2 - 4q15/2 + q17/2

A2 (sl(3)) Invariant: q-8 + q-6 + q-4 + 4q-2 + 2q2 + q4 - 4q6 + 2q8 - 3q10 + 2q12 + q14 - q16 + 3q18 - 2q20 + q22 + q24 - q26

HOMFLY-PT Polynomial: a-7z + a-7z3 - a-5z-1 - 3a-5z - 5a-5z3 - 2a-5z5 + 3a-3z-1 + 7a-3z + 7a-3z3 + 4a-3z5 + a-3z7 - 4a-1z-1 - 8a-1z - 7a-1z3 - 2a-1z5 + 2az-1 + 3az + az3

Kauffman Polynomial: - a-10z4 + 2a-9z3 - 4a-9z5 - 2a-8z2 + 8a-8z4 - 8a-8z6 + a-7z - 6a-7z3 + 13a-7z5 - 10a-7z7 + a-6 - 2a-6z2 + 3a-6z4 + 7a-6z6 - 8a-6z8 - a-5z-1 + 4a-5z - 15a-5z3 + 23a-5z5 - 5a-5z7 - 4a-5z9 + 3a-4 - 6a-4z2 - 9a-4z4 + 25a-4z6 - 10a-4z8 - a-4z10 - 3a-3z-1 + 13a-3z - 24a-3z3 + 14a-3z5 + 8a-3z7 - 6a-3z9 + 3a-2 - 7a-2z2 - 9a-2z4 + 17a-2z6 - 4a-2z8 - a-2z10 - 4a-1z-1 + 17a-1z - 26a-1z3 + 13a-1z5 + 2a-1z7 - 2a-1z9 + 2 - z2 - 6z4 + 7z6 - 2z8 - 2az-1 + 7az - 9az3 + 5az5 - az7

Khovanov Homology:
trqj r = -4r = -3r = -2r = -1r = 0r = 1r = 2r = 3r = 4r = 5r = 6r = 7
j = 18           1
j = 16          3 
j = 14         51 
j = 12        73  
j = 10       85   
j = 8      97    
j = 6     78     
j = 4    69      
j = 2   59       
j = 0  14        
j = -2 15         
j = -4 1          
j = -61           


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[11, Alternating, 90]]]
Out[3]=   
 -Graphics- 
In[4]:=
PD[L = Link[11, Alternating, 90]]
Out[4]=   
PD[X[6, 1, 7, 2], X[12, 4, 13, 3], X[18, 8, 19, 7], X[20, 10, 21, 9], 
 
>   X[22, 15, 5, 16], X[8, 20, 9, 19], X[16, 21, 17, 22], X[14, 12, 15, 11], 
 
>   X[10, 18, 11, 17], X[2, 5, 3, 6], X[4, 14, 1, 13]]
In[5]:=
GaussCode[L]
Out[5]=   
GaussCode[{1, -10, 2, -11}, {10, -1, 3, -6, 4, -9, 8, -2, 11, -8, 5, -7, 9, -3, 
 
>    6, -4, 7, -5}]
In[6]:=
Jones[L][q]
Out[6]=   
  -(5/2)    2        6                      3/2       5/2       7/2       9/2
-q       + ---- - ------- + 9 Sqrt[q] - 13 q    + 16 q    - 17 q    + 15 q    - 
            3/2   Sqrt[q]
           q
 
        11/2      13/2      15/2    17/2
>   12 q     + 8 q     - 4 q     + q
In[7]:=
A2Invariant[L][q]
Out[7]=   
 -8    -6    -4   4       2    4      6      8      10      12    14    16
q   + q   + q   + -- + 2 q  + q  - 4 q  + 2 q  - 3 q   + 2 q   + q   - q   + 
                   2
                  q
 
       18      20    22    24    26
>   3 q   - 2 q   + q   + q   - q
In[8]:=
HOMFLYPT[Link[11, Alternating, 90]][a, z]
Out[8]=   
                                                             3      3      3
   1       3      4    2 a   z    3 z   7 z   8 z           z    5 z    7 z
-(----) + ---- - --- + --- + -- - --- + --- - --- + 3 a z + -- - ---- + ---- - 
   5       3     a z    z     7    5     3     a             7     5      3
  a  z    a  z               a    a     a                   a     a      a
 
       3             5      5      5    7
    7 z       3   2 z    4 z    2 z    z
>   ---- + a z  - ---- + ---- - ---- + --
     a              5      3     a      3
                   a      a            a
In[9]:=
Kauffman[Link[11, Alternating, 90]][a, z]
Out[9]=   
     -6   3    3     1      3      4    2 a   z    4 z   13 z   17 z
2 + a   + -- + -- - ---- - ---- - --- - --- + -- + --- + ---- + ---- + 7 a z - 
           4    2    5      3     a z    z     7    5      3     a
          a    a    a  z   a  z               a    a      a
 
            2      2      2      2      3      3       3       3       3
     2   2 z    2 z    6 z    7 z    2 z    6 z    15 z    24 z    26 z
>   z  - ---- - ---- - ---- - ---- + ---- - ---- - ----- - ----- - ----- - 
           8      6      4      2      9      7      5       3       a
          a      a      a      a      a      a      a       a
 
                     4       4      4      4      4      5       5       5
         3      4   z     8 z    3 z    9 z    9 z    4 z    13 z    23 z
>   9 a z  - 6 z  - --- + ---- + ---- - ---- - ---- - ---- + ----- + ----- + 
                     10     8      6      4      2      9      7       5
                    a      a      a      a      a      a      a       a
 
        5       5                      6      6       6       6       7
    14 z    13 z         5      6   8 z    7 z    25 z    17 z    10 z
>   ----- + ----- + 5 a z  + 7 z  - ---- + ---- + ----- + ----- - ----- - 
      3       a                       8      6      4       2       7
     a                               a      a      a       a       a
 
       7      7      7                    8       8      8      9      9
    5 z    8 z    2 z       7      8   8 z    10 z    4 z    4 z    6 z
>   ---- + ---- + ---- - a z  - 2 z  - ---- - ----- - ---- - ---- - ---- - 
      5      3     a                     6      4       2      5      3
     a      a                           a      a       a      a      a
 
       9    10    10
    2 z    z     z
>   ---- - --- - ---
     a      4     2
           a     a
In[10]:=
Kh[L][q, t]
Out[10]=   
                                                           2
   2      4     1       1       1      -2     5     4   5 q       4
9 q  + 6 q  + ----- + ----- + ----- + t   + ----- + - + ---- + 9 q  t + 
               6  4    4  3    2  3          2  2   t    t
              q  t    q  t    q  t          q  t
 
       6        6  2      8  2      8  3      10  3      10  4      12  4
>   7 q  t + 8 q  t  + 9 q  t  + 7 q  t  + 8 q   t  + 5 q   t  + 7 q   t  + 
 
       12  5      14  5    14  6      16  6    18  7
>   3 q   t  + 5 q   t  + q   t  + 3 q   t  + q   t


Dror Bar-Natan: The Knot Atlas: The Thistlethwaite Link Table: The Link L11a90
L11a89
L11a89
L11a91
L11a91