T(33,2)

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T(11,4)

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T(17,3)

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T(33,2) Quick Notes


T(33,2) Further Notes and Views

Knot presentations

Planar diagram presentation X31,65,32,64 X65,33,66,32 X33,1,34,66 X1,35,2,34 X35,3,36,2 X3,37,4,36 X37,5,38,4 X5,39,6,38 X39,7,40,6 X7,41,8,40 X41,9,42,8 X9,43,10,42 X43,11,44,10 X11,45,12,44 X45,13,46,12 X13,47,14,46 X47,15,48,14 X15,49,16,48 X49,17,50,16 X17,51,18,50 X51,19,52,18 X19,53,20,52 X53,21,54,20 X21,55,22,54 X55,23,56,22 X23,57,24,56 X57,25,58,24 X25,59,26,58 X59,27,60,26 X27,61,28,60 X61,29,62,28 X29,63,30,62 X63,31,64,30
Gauss code -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28, 29, -30, 31, -32, 33, -1, 2, -3, 4, -5, 6, -7, 8, -9, 10, -11, 12, -13, 14, -15, 16, -17, 18, -19, 20, -21, 22, -23, 24, -25, 26, -27, 28, -29, 30, -31, 32, -33, 1, -2, 3
Dowker-Thistlethwaite code 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Conway Notation Data:T(33,2)/Conway Notation

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 33, 32 }
Jones polynomial
HOMFLY-PT polynomial (db, data sources)
Kauffman polynomial (db, data sources)
The A2 invariant Data:T(33,2)/QuantumInvariant/A2/1,0
The G2 invariant Data:T(33,2)/QuantumInvariant/G2/1,0

Vassiliev invariants

V2 and V3: (136, 1496)
V2,1 through V6,9:
V2,1 V3,1 V4,1 V4,2 V4,3 V5,1 V5,2 V5,3 V5,4 V6,1 V6,2 V6,3 V6,4 V6,5 V6,6 V6,7 V6,8 V6,9
Data:T(33,2)/V 2,1 Data:T(33,2)/V 3,1 Data:T(33,2)/V 4,1 Data:T(33,2)/V 4,2 Data:T(33,2)/V 4,3 Data:T(33,2)/V 5,1 Data:T(33,2)/V 5,2 Data:T(33,2)/V 5,3 Data:T(33,2)/V 5,4 Data:T(33,2)/V 6,1 Data:T(33,2)/V 6,2 Data:T(33,2)/V 6,3 Data:T(33,2)/V 6,4 Data:T(33,2)/V 6,5 Data:T(33,2)/V 6,6 Data:T(33,2)/V 6,7 Data:T(33,2)/V 6,8 Data:T(33,2)/V 6,9

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 32 is the signature of T(33,2). Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\ r
  \  
j \
0123456789101112131415161718192021222324252627282930313233χ
99                                 1-1
97                                  0
95                               11 0
93                                  0
91                             11   0
89                                  0
87                           11     0
85                                  0
83                         11       0
81                                  0
79                       11         0
77                                  0
75                     11           0
73                                  0
71                   11             0
69                                  0
67                 11               0
65                                  0
63               11                 0
61                                  0
59             11                   0
57                                  0
55           11                     0
53                                  0
51         11                       0
49                                  0
47       11                         0
45                                  0
43     11                           0
41                                  0
39   11                             0
37                                  0
35  1                               1
331                                 1
311                                 1

Computer Talk

Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session.

In[1]:=    
<< KnotTheory`
Loading KnotTheory` (version of August 17, 2005, 14:44:34)...
In[2]:=
Crossings[TorusKnot[33, 2]]
Out[2]=  
33
In[3]:=
PD[TorusKnot[33, 2]]
Out[3]=  
PD[X[31, 65, 32, 64], X[65, 33, 66, 32], X[33, 1, 34, 66], 
 X[1, 35, 2, 34], X[35, 3, 36, 2], X[3, 37, 4, 36], X[37, 5, 38, 4], 

 X[5, 39, 6, 38], X[39, 7, 40, 6], X[7, 41, 8, 40], X[41, 9, 42, 8], 

 X[9, 43, 10, 42], X[43, 11, 44, 10], X[11, 45, 12, 44], 

 X[45, 13, 46, 12], X[13, 47, 14, 46], X[47, 15, 48, 14], 

 X[15, 49, 16, 48], X[49, 17, 50, 16], X[17, 51, 18, 50], 

 X[51, 19, 52, 18], X[19, 53, 20, 52], X[53, 21, 54, 20], 

 X[21, 55, 22, 54], X[55, 23, 56, 22], X[23, 57, 24, 56], 

 X[57, 25, 58, 24], X[25, 59, 26, 58], X[59, 27, 60, 26], 

 X[27, 61, 28, 60], X[61, 29, 62, 28], X[29, 63, 30, 62], 

X[63, 31, 64, 30]]
In[4]:=
GaussCode[TorusKnot[33, 2]]
Out[4]=  
GaussCode[-4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 
 19, -20, 21, -22, 23, -24, 25, -26, 27, -28, 29, -30, 31, -32, 33, 

 -1, 2, -3, 4, -5, 6, -7, 8, -9, 10, -11, 12, -13, 14, -15, 16, -17, 

 18, -19, 20, -21, 22, -23, 24, -25, 26, -27, 28, -29, 30, -31, 32, 

-33, 1, -2, 3]
In[5]:=
BR[TorusKnot[33, 2]]
Out[5]=  
BR[2, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
   1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}]
In[6]:=
alex = Alexander[TorusKnot[33, 2]][t]
Out[6]=  
     -16    -15    -14    -13    -12    -11    -10    -9    -8    -7

1 + t - t + t - t + t - t + t - t + t - t +

  -6    -5    -4    -3    -2   1        2    3    4    5    6    7
 t   - t   + t   - t   + t   - - - t + t  - t  + t  - t  + t  - t  + 
                               t

  8    9    10    11    12    13    14    15    16
t - t + t - t + t - t + t - t + t
In[7]:=
Conway[TorusKnot[33, 2]][z]
Out[7]=  
         2         4          6           8           10           12

1 + 136 z + 3060 z + 27132 z + 125970 z + 352716 z + 646646 z +

         14           16           18           20          22
 817190 z   + 735471 z   + 480700 z   + 230230 z   + 80730 z   + 

        24         26        28       30    32
20475 z + 3654 z + 435 z + 31 z + z
In[8]:=
Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=  
{}
In[9]:=
{KnotDet[TorusKnot[33, 2]], KnotSignature[TorusKnot[33, 2]]}
Out[9]=  
{33, 32}
In[10]:=
J=Jones[TorusKnot[33, 2]][q]
Out[10]=  
 16    18    19    20    21    22    23    24    25    26    27    28

q + q - q + q - q + q - q + q - q + q - q + q -

  29    30    31    32    33    34    35    36    37    38    39
 q   + q   - q   + q   - q   + q   - q   + q   - q   + q   - q   + 

  40    41    42    43    44    45    46    47    48    49
q - q + q - q + q - q + q - q + q - q
In[11]:=
Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=  
{}
In[12]:=
A2Invariant[TorusKnot[33, 2]][q]
Out[12]=  
NotAvailable
In[13]:=
Kauffman[TorusKnot[33, 2]][a, z]
Out[13]=  
NotAvailable
In[14]:=
{Vassiliev[2][TorusKnot[33, 2]], Vassiliev[3][TorusKnot[33, 2]]}
Out[14]=  
{0, 1496}
In[15]:=
Kh[TorusKnot[33, 2]][q, t]
Out[15]=  
 31    33    35  2    39  3    39  4    43  5    43  6    47  7

q + q + q t + q t + q t + q t + q t + q t +

  47  8    51  9    51  10    55  11    55  12    59  13    59  14
 q   t  + q   t  + q   t   + q   t   + q   t   + q   t   + q   t   + 

  63  15    63  16    67  17    67  18    71  19    71  20    75  21
 q   t   + q   t   + q   t   + q   t   + q   t   + q   t   + q   t   + 

  75  22    79  23    79  24    83  25    83  26    87  27    87  28
 q   t   + q   t   + q   t   + q   t   + q   t   + q   t   + q   t   + 

  91  29    91  30    95  31    95  32    99  33
q t + q t + q t + q t + q t
This category should contain all the individual knots pages, like 7_5, K11n67, L8a2 and T(5,3)