In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 17, 2005, 14:44:34)... |
In[2]:= | Crossings[Knot[10, 30]] |
Out[2]= | 10 |
In[3]:= | PD[Knot[10, 30]] |
Out[3]= | PD[X[1, 4, 2, 5], X[5, 12, 6, 13], X[3, 11, 4, 10], X[11, 3, 12, 2],
X[9, 18, 10, 19], X[13, 20, 14, 1], X[19, 14, 20, 15],
X[17, 6, 18, 7], X[7, 16, 8, 17], X[15, 8, 16, 9]] |
In[4]:= | GaussCode[Knot[10, 30]] |
Out[4]= | GaussCode[-1, 4, -3, 1, -2, 8, -9, 10, -5, 3, -4, 2, -6, 7, -10, 9, -8,
5, -7, 6] |
In[5]:= | BR[Knot[10, 30]] |
Out[5]= | BR[5, {-1, -1, -2, 1, -2, -2, -3, 2, -3, 4, -3, 4}] |
In[6]:= | alex = Alexander[Knot[10, 30]][t] |
Out[6]= | 4 17 2
-25 - -- + -- + 17 t - 4 t
2 t
t |
In[7]:= | Conway[Knot[10, 30]][z] |
Out[7]= | 2 4
1 + z - 4 z |
In[8]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[8]= | {Knot[10, 30], Knot[11, Alternating, 154]} |
In[9]:= | {KnotDet[Knot[10, 30]], KnotSignature[Knot[10, 30]]} |
Out[9]= | {67, -2} |
In[10]:= | J=Jones[Knot[10, 30]][q] |
Out[10]= | -9 3 5 8 10 11 11 8 6
-3 + q - -- + -- - -- + -- - -- + -- - -- + - + q
8 7 6 5 4 3 2 q
q q q q q q q |
In[11]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[11]= | {Knot[10, 30]} |
In[12]:= | A2Invariant[Knot[10, 30]][q] |
Out[12]= | -28 -26 -24 2 2 -16 2 -12 -10 2
-1 + q - q - q + --- - --- + q - --- + q - q + -- +
22 20 14 8
q q q q
2 -4 3 2 4
-- - q + -- - q + q
6 2
q q |
In[13]:= | Kauffman[Knot[10, 30]][a, z] |
Out[13]= | 2 4 3 5 7 9 2 2 2 4 2
-2 a - a - a z - 5 a z - 6 a z - 2 a z - z + 5 a z + 9 a z +
6 2 8 2 10 2 3 3 3 5 3 7 3
2 a z + a z + 2 a z - 3 a z + 4 a z + 16 a z + 18 a z +
9 3 4 2 4 4 4 6 4 8 4 10 4
9 a z + z - 7 a z - 11 a z + 2 a z + 2 a z - 3 a z +
5 3 5 5 5 7 5 9 5 2 6
3 a z - 6 a z - 19 a z - 20 a z - 10 a z + 5 a z +
4 6 6 6 8 6 10 6 3 7 5 7 7 7
2 a z - 11 a z - 7 a z + a z + 5 a z + 7 a z + 5 a z +
9 7 4 8 6 8 8 8 5 9 7 9
3 a z + 3 a z + 6 a z + 3 a z + a z + a z |
In[14]:= | {Vassiliev[2][Knot[10, 30]], Vassiliev[3][Knot[10, 30]]} |
Out[14]= | {0, -1} |
In[15]:= | Kh[Knot[10, 30]][q, t] |
Out[15]= | 3 4 1 2 1 3 2 5 3
-- + - + ------ + ------ + ------ + ------ + ------ + ------ + ------ +
3 q 19 8 17 7 15 7 15 6 13 6 13 5 11 5
q q t q t q t q t q t q t q t
5 5 6 5 5 6 3 5 t
------ + ----- + ----- + ----- + ----- + ----- + ---- + ---- + - +
11 4 9 4 9 3 7 3 7 2 5 2 5 3 q
q t q t q t q t q t q t q t q t
3 2
2 q t + q t |