In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[10, 150]] |
Out[2]= | PD[X[4, 2, 5, 1], X[8, 4, 9, 3], X[5, 12, 6, 13], X[9, 17, 10, 16],
X[17, 1, 18, 20], X[13, 19, 14, 18], X[19, 15, 20, 14],
X[15, 11, 16, 10], X[11, 6, 12, 7], X[2, 8, 3, 7]] |
In[3]:= | GaussCode[Knot[10, 150]] |
Out[3]= | GaussCode[1, -10, 2, -1, -3, 9, 10, -2, -4, 8, -9, 3, -6, 7, -8, 4, -5,
6, -7, 5] |
In[4]:= | DTCode[Knot[10, 150]] |
Out[4]= | DTCode[4, 8, -12, 2, -16, -6, -18, -10, -20, -14] |
In[5]:= | br = BR[Knot[10, 150]] |
Out[5]= | BR[4, {1, 1, 1, -2, 1, 1, 3, -2, -1, 3, 2}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 11} |
In[7]:= | BraidIndex[Knot[10, 150]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[10, 150]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[10, 150]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Chiral, 2, 3, 3, NotAvailable, 1} |
In[10]:= | alex = Alexander[Knot[10, 150]][t] |
Out[10]= | -3 4 6 2 3
7 - t + -- - - - 6 t + 4 t - t
2 t
t |
In[11]:= | Conway[Knot[10, 150]][z] |
Out[11]= | 2 4 6
1 + z - 2 z - z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[10, 127], Knot[10, 150], Knot[11, NonAlternating, 51]} |
In[13]:= | {KnotDet[Knot[10, 150]], KnotSignature[Knot[10, 150]]} |
Out[13]= | {29, 4} |
In[14]:= | Jones[Knot[10, 150]][q] |
Out[14]= | 2 3 4 5 6 7 8
1 - 2 q + 4 q - 4 q + 5 q - 5 q + 4 q - 3 q + q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[10, 150]} |
In[16]:= | A2Invariant[Knot[10, 150]][q] |
Out[16]= | 4 6 10 12 14 16 18 22 24
1 + q + q + 2 q - q + q - q - q - q + q |
In[17]:= | HOMFLYPT[Knot[10, 150]][a, z] |
Out[17]= | 2 2 2 4 4 4 6
-4 2 2 z 4 z 3 z z 4 z z z
-a + -- + ---- - ---- + ---- + -- - ---- + -- - --
2 6 4 2 6 4 2 4
a a a a a a a a |
In[18]:= | Kauffman[Knot[10, 150]][a, z] |
Out[18]= | 2 2 2 2 2 3
-4 2 z 3 z 2 z z z 3 z 8 z 5 z 3 z
-a - -- - -- - --- - --- + --- + -- + ---- + ---- + ---- + ---- +
2 9 7 5 10 8 6 4 2 9
a a a a a a a a a a
3 3 3 4 4 4 5 5 5 6
6 z 8 z 5 z 5 z 9 z 4 z 5 z 12 z 7 z z
---- + ---- + ---- - ---- - ---- - ---- - ---- - ----- - ---- + -- +
7 5 3 6 4 2 7 5 3 8
a a a a a a a a a a
6 7 7 7 8 8
z 2 z 4 z 2 z z z
-- + ---- + ---- + ---- + -- + --
2 7 5 3 6 4
a a a a a a |
In[19]:= | {Vassiliev[2][Knot[10, 150]], Vassiliev[3][Knot[10, 150]]} |
Out[19]= | {1, 1} |
In[20]:= | Kh[Knot[10, 150]][q, t] |
Out[20]= | 3
3 5 1 q q 5 7 7 2 9 2
3 q + 2 q + ---- + - + -- + 2 q t + 2 q t + 3 q t + 2 q t +
2 t t
q t
9 3 11 3 11 4 13 4 13 5 15 5 17 6
2 q t + 3 q t + 2 q t + 2 q t + q t + 2 q t + q t |
In[21]:= | ColouredJones[Knot[10, 150], 2][q] |
Out[21]= | -2 2 2 3 4 5 6 7 8
-1 + q - - + 7 q - 4 q - 8 q + 14 q - q - 16 q + 15 q + 6 q -
q
9 10 11 12 13 14 15 17
21 q + 11 q + 12 q - 21 q + 5 q + 15 q - 16 q + 11 q -
18 19 20 21
7 q - q + 3 q - q |