In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[8, 10]] |
Out[2]= | PD[X[1, 4, 2, 5], X[3, 8, 4, 9], X[9, 15, 10, 14], X[5, 13, 6, 12],
X[13, 7, 14, 6], X[11, 1, 12, 16], X[15, 11, 16, 10], X[7, 2, 8, 3]] |
In[3]:= | GaussCode[Knot[8, 10]] |
Out[3]= | GaussCode[-1, 8, -2, 1, -4, 5, -8, 2, -3, 7, -6, 4, -5, 3, -7, 6] |
In[4]:= | DTCode[Knot[8, 10]] |
Out[4]= | DTCode[4, 8, 12, 2, 14, 16, 6, 10] |
In[5]:= | br = BR[Knot[8, 10]] |
Out[5]= | BR[3, {1, 1, 1, -2, 1, 1, -2, -2}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {3, 8} |
In[7]:= | BraidIndex[Knot[8, 10]] |
Out[7]= | 3 |
In[8]:= | Show[DrawMorseLink[Knot[8, 10]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[8, 10]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 2, 3, 3, {4, 6}, 1} |
In[10]:= | alex = Alexander[Knot[8, 10]][t] |
Out[10]= | -3 3 6 2 3
-7 + t - -- + - + 6 t - 3 t + t
2 t
t |
In[11]:= | Conway[Knot[8, 10]][z] |
Out[11]= | 2 4 6
1 + 3 z + 3 z + z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[8, 10], Knot[10, 143], Knot[11, NonAlternating, 106]} |
In[13]:= | {KnotDet[Knot[8, 10]], KnotSignature[Knot[8, 10]]} |
Out[13]= | {27, 2} |
In[14]:= | Jones[Knot[8, 10]][q] |
Out[14]= | -2 2 2 3 4 5 6
-3 - q + - + 5 q - 4 q + 5 q - 4 q + 2 q - q
q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[8, 10]} |
In[16]:= | A2Invariant[Knot[8, 10]][q] |
Out[16]= | -6 -2 2 4 6 8 10 12 14 18
-q - q + 2 q + q + 4 q + q + q - q - 2 q - q |
In[17]:= | HOMFLYPT[Knot[8, 10]][a, z] |
Out[17]= | 2 2 4 4 6
3 6 2 3 z 9 z 4 z 5 z z
-2 - -- + -- - 3 z - ---- + ---- - z - -- + ---- + --
4 2 4 2 4 2 2
a a a a a a a |
In[18]:= | Kauffman[Knot[8, 10]][a, z] |
Out[18]= | 2 2
3 6 z 2 z 6 z 5 z 2 z 6 z
-2 - -- - -- - -- + --- + --- + --- + 2 a z + 5 z - -- + ---- +
4 2 7 5 3 a 6 4
a a a a a a a
2 3 3 3 3 4 4
12 z z 3 z 9 z 8 z 3 4 2 z 5 z
----- + -- - ---- - ---- - ---- - 3 a z - 6 z + ---- - ---- -
2 7 5 3 a 6 4
a a a a a a
4 5 5 5 6 6 7 7
13 z 3 z 3 z z 5 6 3 z 5 z z z
----- + ---- + ---- + -- + a z + 2 z + ---- + ---- + -- + --
2 5 3 a 4 2 3 a
a a a a a a |
In[19]:= | {Vassiliev[2][Knot[8, 10]], Vassiliev[3][Knot[8, 10]]} |
Out[19]= | {3, 3} |
In[20]:= | Kh[Knot[8, 10]][q, t] |
Out[20]= | 3 1 1 1 2 q 3 5
3 q + 3 q + ----- + ----- + ---- + --- + - + 2 q t + 2 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 13 5
3 q t + 2 q t + q t + 3 q t + q t + q t + q t |
In[21]:= | ColouredJones[Knot[8, 10], 2][q] |
Out[21]= | -7 2 -5 6 5 6 14 2 3 4
-5 + q - -- - q + -- - -- - -- + -- - 14 q + 21 q - 2 q - 21 q +
6 4 3 2 q
q q q q
5 6 7 8 9 10 11 12
23 q + 2 q - 24 q + 20 q + 3 q - 19 q + 12 q + 3 q -
13 14 15 16 17
9 q + 4 q + q - 2 q + q |