In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 17, 2005, 14:44:34)... |
In[2]:= | Crossings[Knot[10, 23]] |
Out[2]= | 10 |
In[3]:= | PD[Knot[10, 23]] |
Out[3]= | PD[X[1, 4, 2, 5], X[3, 12, 4, 13], X[13, 1, 14, 20], X[5, 15, 6, 14],
X[7, 17, 8, 16], X[15, 7, 16, 6], X[19, 9, 20, 8], X[9, 19, 10, 18],
X[17, 11, 18, 10], X[11, 2, 12, 3]] |
In[4]:= | GaussCode[Knot[10, 23]] |
Out[4]= | GaussCode[-1, 10, -2, 1, -4, 6, -5, 7, -8, 9, -10, 2, -3, 4, -6, 5, -9,
8, -7, 3] |
In[5]:= | BR[Knot[10, 23]] |
Out[5]= | BR[4, {-1, -1, 2, -1, 2, 2, 2, 2, 3, -2, 3}] |
In[6]:= | alex = Alexander[Knot[10, 23]][t] |
Out[6]= | 2 7 13 2 3
-15 + -- - -- + -- + 13 t - 7 t + 2 t
3 2 t
t t |
In[7]:= | Conway[Knot[10, 23]][z] |
Out[7]= | 2 4 6
1 + 3 z + 5 z + 2 z |
In[8]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[8]= | {Knot[10, 23], Knot[10, 52]} |
In[9]:= | {KnotDet[Knot[10, 23]], KnotSignature[Knot[10, 23]]} |
Out[9]= | {59, 2} |
In[10]:= | J=Jones[Knot[10, 23]][q] |
Out[10]= | -2 3 2 3 4 5 6 7 8
-5 - q + - + 8 q - 9 q + 10 q - 9 q + 7 q - 4 q + 2 q - q
q |
In[11]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[11]= | {Knot[10, 23]} |
In[12]:= | A2Invariant[Knot[10, 23]][q] |
Out[12]= | -6 -4 2 4 6 10 12 14 16 18
-q + q + 2 q - 2 q + 2 q + q + 2 q - q + 2 q - q -
20 24
q - q |
In[13]:= | Kauffman[Knot[10, 23]][a, z] |
Out[13]= | 2 2 2 2
2 3 2 z z 2 z 2 z z 2 3 z 6 z 13 z z
-- + -- + --- + -- - --- - --- - - + 3 z + ---- - ---- - ----- - -- -
6 4 9 7 5 3 a 8 6 4 2
a a a a a a a a a a
3 3 3 3 3 4 4
3 z 2 z 3 z 9 z 5 z 3 4 5 z 5 z
---- - ---- + ---- + ---- + ---- - 2 a z - 7 z - ---- + ---- +
9 7 5 3 a 8 6
a a a a a a
4 4 5 5 5 5 5 6
20 z 3 z z 2 z 2 z 9 z 9 z 5 6 2 z
----- + ---- + -- - ---- - ---- - ---- - ---- + a z + 3 z + ---- -
4 2 9 7 5 3 a 8
a a a a a a a
6 6 6 7 7 7 7 8 8 8
3 z 13 z 5 z 2 z z 3 z 4 z 2 z 5 z 3 z
---- - ----- - ---- + ---- + -- + ---- + ---- + ---- + ---- + ---- +
6 4 2 7 5 3 a 6 4 2
a a a a a a a a a
9 9
z z
-- + --
5 3
a a |
In[14]:= | {Vassiliev[2][Knot[10, 23]], Vassiliev[3][Knot[10, 23]]} |
Out[14]= | {0, 5} |
In[15]:= | Kh[Knot[10, 23]][q, t] |
Out[15]= | 3 1 2 1 3 2 q 3 5
5 q + 4 q + ----- + ----- + ---- + --- + --- + 5 q t + 4 q t +
5 3 3 2 2 q t t
q t q t q t
5 2 7 2 7 3 9 3 9 4 11 4 11 5
5 q t + 5 q t + 4 q t + 5 q t + 3 q t + 4 q t + q t +
13 5 13 6 15 6 17 7
3 q t + q t + q t + q t |