In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 17, 2005, 14:44:34)... |
In[2]:= | Crossings[Knot[10, 50]] |
Out[2]= | 10 |
In[3]:= | PD[Knot[10, 50]] |
Out[3]= | PD[X[6, 2, 7, 1], X[8, 4, 9, 3], X[2, 8, 3, 7], X[16, 10, 17, 9],
X[14, 5, 15, 6], X[4, 15, 5, 16], X[20, 14, 1, 13],
X[10, 20, 11, 19], X[18, 12, 19, 11], X[12, 18, 13, 17]] |
In[4]:= | GaussCode[Knot[10, 50]] |
Out[4]= | GaussCode[1, -3, 2, -6, 5, -1, 3, -2, 4, -8, 9, -10, 7, -5, 6, -4, 10,
-9, 8, -7] |
In[5]:= | BR[Knot[10, 50]] |
Out[5]= | BR[4, {1, 1, 2, -1, 2, 2, -3, 2, 2, 2, -3}] |
In[6]:= | alex = Alexander[Knot[10, 50]][t] |
Out[6]= | 2 7 11 2 3
13 - -- + -- - -- - 11 t + 7 t - 2 t
3 2 t
t t |
In[7]:= | Conway[Knot[10, 50]][z] |
Out[7]= | 2 4 6
1 - z - 5 z - 2 z |
In[8]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[8]= | {Knot[10, 50]} |
In[9]:= | {KnotDet[Knot[10, 50]], KnotSignature[Knot[10, 50]]} |
Out[9]= | {53, 4} |
In[10]:= | J=Jones[Knot[10, 50]][q] |
Out[10]= | 2 3 4 5 6 7 8 9 10
1 - 2 q + 5 q - 6 q + 8 q - 9 q + 8 q - 7 q + 4 q - 2 q + q |
In[11]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[11]= | {Knot[10, 50]} |
In[12]:= | A2Invariant[Knot[10, 50]][q] |
Out[12]= | 4 6 10 12 16 18 22 24 26 30
1 + q + 2 q + 3 q - q - q - 3 q - 2 q + q + q + q |
In[13]:= | Kauffman[Knot[10, 50]][a, z] |
Out[13]= | 2 2 2
2 4 -4 2 6 z 10 z 3 z z 2 z 3 z 3 z
-- + -- + a - -- - --- - ---- - --- + -- - ---- + ---- - ---- -
8 6 2 9 7 5 3 12 10 8
a a a a a a a a a a
2 2 3 3 3 3 3 4 4
13 z 5 z 3 z 16 z 22 z 6 z 3 z z 5 z
----- + ---- - ---- + ----- + ----- + ---- + ---- + --- - ---- +
6 2 11 9 7 5 3 12 10
a a a a a a a a a
4 4 4 4 5 5 5 5 5
9 z 18 z z 4 z 2 z 11 z 15 z 8 z 6 z
---- + ----- - -- - ---- + ---- - ----- - ----- - ---- - ---- +
8 6 4 2 11 9 7 5 3
a a a a a a a a a
6 6 6 6 6 7 7 7 7 8
3 z 7 z 15 z 4 z z 4 z 3 z z 2 z 3 z
---- - ---- - ----- - ---- + -- + ---- + ---- + -- + ---- + ---- +
10 8 6 4 2 9 7 5 3 8
a a a a a a a a a a
8 8 9 9
5 z 2 z z z
---- + ---- + -- + --
6 4 7 5
a a a a |
In[14]:= | {Vassiliev[2][Knot[10, 50]], Vassiliev[3][Knot[10, 50]]} |
Out[14]= | {0, -5} |
In[15]:= | Kh[Knot[10, 50]][q, t] |
Out[15]= | 3
3 5 1 q q 5 7 7 2 9 2
4 q + 2 q + ---- + - + -- + 3 q t + 3 q t + 5 q t + 3 q t +
2 t t
q t
9 3 11 3 11 4 13 4 13 5 15 5
4 q t + 5 q t + 4 q t + 4 q t + 3 q t + 4 q t +
15 6 17 6 17 7 19 7 21 8
q t + 3 q t + q t + q t + q t |