In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 17, 2005, 14:44:34)... |
In[2]:= | Crossings[Knot[10, 45]] |
Out[2]= | 10 |
In[3]:= | PD[Knot[10, 45]] |
Out[3]= | PD[X[4, 2, 5, 1], X[12, 6, 13, 5], X[10, 3, 11, 4], X[2, 11, 3, 12],
X[20, 14, 1, 13], X[14, 7, 15, 8], X[6, 19, 7, 20],
X[18, 15, 19, 16], X[16, 10, 17, 9], X[8, 18, 9, 17]] |
In[4]:= | GaussCode[Knot[10, 45]] |
Out[4]= | GaussCode[1, -4, 3, -1, 2, -7, 6, -10, 9, -3, 4, -2, 5, -6, 8, -9, 10,
-8, 7, -5] |
In[5]:= | BR[Knot[10, 45]] |
Out[5]= | BR[5, {-1, 2, -1, 2, -3, 2, -3, 4, -3, 4}] |
In[6]:= | alex = Alexander[Knot[10, 45]][t] |
Out[6]= | -3 7 21 2 3
31 - t + -- - -- - 21 t + 7 t - t
2 t
t |
In[7]:= | Conway[Knot[10, 45]][z] |
Out[7]= | 2 4 6
1 - 2 z + z - z |
In[8]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[8]= | {Knot[10, 45]} |
In[9]:= | {KnotDet[Knot[10, 45]], KnotSignature[Knot[10, 45]]} |
Out[9]= | {89, 0} |
In[10]:= | J=Jones[Knot[10, 45]][q] |
Out[10]= | -5 4 7 11 14 2 3 4 5
15 - q + -- - -- + -- - -- - 14 q + 11 q - 7 q + 4 q - q
4 3 2 q
q q q |
In[11]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[11]= | {Knot[10, 45]} |
In[12]:= | A2Invariant[Knot[10, 45]][q] |
Out[12]= | -16 -14 2 2 3 2 2 2 4 8
-3 - q + q + --- - --- + -- - -- + -- + 2 q - 2 q + 3 q -
12 10 8 4 2
q q q q q
10 12 14 16
2 q + 2 q + q - q |
In[13]:= | Kauffman[Knot[10, 45]][a, z] |
Out[13]= | 2 2
2 2 z 5 z 3 2 3 z 12 z
-3 - -- - 2 a - -- - --- - 5 a z - a z + 18 z + ---- + ----- +
2 3 a 4 2
a a a a
3 3 3
2 2 4 2 z 5 z 21 z 3 3 3 5 3
12 a z + 3 a z - -- + ---- + ----- + 21 a z + 5 a z - a z -
5 3 a
a a
4 4 5 5 5
4 7 z 17 z 2 4 4 4 z 10 z 31 z
20 z - ---- - ----- - 17 a z - 7 a z + -- - ----- - ----- -
4 2 5 3 a
a a a a
6 6
5 3 5 5 5 6 4 z 3 z 2 6 4 6
31 a z - 10 a z + a z - 2 z + ---- + ---- + 3 a z + 4 a z +
4 2
a a
7 7 8 9
6 z 14 z 7 3 7 8 4 z 2 8 z 9
---- + ----- + 14 a z + 6 a z + 8 z + ---- + 4 a z + -- + a z
3 a 2 a
a a |
In[14]:= | {Vassiliev[2][Knot[10, 45]], Vassiliev[3][Knot[10, 45]]} |
Out[14]= | {0, 0} |
In[15]:= | Kh[Knot[10, 45]][q, t] |
Out[15]= | 8 1 3 1 4 3 7 4
- + 8 q + ------ + ----- + ----- + ----- + ----- + ----- + ----- +
q 11 5 9 4 7 4 7 3 5 3 5 2 3 2
q t q t q t q t q t q t q t
7 7 3 3 2 5 2 5 3 7 3
---- + --- + 7 q t + 7 q t + 4 q t + 7 q t + 3 q t + 4 q t +
3 q t
q t
7 4 9 4 11 5
q t + 3 q t + q t |