In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[10, 12]] |
Out[2]= | PD[X[1, 4, 2, 5], X[3, 10, 4, 11], X[13, 19, 14, 18], X[5, 15, 6, 14],
X[7, 17, 8, 16], X[15, 7, 16, 6], X[17, 9, 18, 8], X[11, 1, 12, 20],
X[19, 13, 20, 12], X[9, 2, 10, 3]] |
In[3]:= | GaussCode[Knot[10, 12]] |
Out[3]= | GaussCode[-1, 10, -2, 1, -4, 6, -5, 7, -10, 2, -8, 9, -3, 4, -6, 5, -7,
3, -9, 8] |
In[4]:= | DTCode[Knot[10, 12]] |
Out[4]= | DTCode[4, 10, 14, 16, 2, 20, 18, 6, 8, 12] |
In[5]:= | br = BR[Knot[10, 12]] |
Out[5]= | BR[4, {1, 1, 1, 1, 1, 2, -1, -3, 2, -3, -3}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 11} |
In[7]:= | BraidIndex[Knot[10, 12]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[10, 12]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[10, 12]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 2, 3, 2, NotAvailable, 1} |
In[10]:= | alex = Alexander[Knot[10, 12]][t] |
Out[10]= | 2 6 10 2 3
-11 + -- - -- + -- + 10 t - 6 t + 2 t
3 2 t
t t |
In[11]:= | Conway[Knot[10, 12]][z] |
Out[11]= | 2 4 6
1 + 4 z + 6 z + 2 z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[10, 12], Knot[10, 54]} |
In[13]:= | {KnotDet[Knot[10, 12]], KnotSignature[Knot[10, 12]]} |
Out[13]= | {47, 2} |
In[14]:= | Jones[Knot[10, 12]][q] |
Out[14]= | -2 2 2 3 4 5 6 7 8
-3 - q + - + 6 q - 7 q + 8 q - 7 q + 6 q - 4 q + 2 q - q
q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[10, 12]} |
In[16]:= | A2Invariant[Knot[10, 12]][q] |
Out[16]= | -6 2 4 6 8 10 12 14 16 18 20 24
-q + 2 q - q + 2 q + q + q + 2 q - q + q - q - q - q |
In[17]:= | HOMFLYPT[Knot[10, 12]][a, z] |
Out[17]= | 2 2 2 4 4 4
2 2 2 2 3 z 5 z 5 z 4 z 4 z 4 z
-1 - -- + -- + -- - 3 z - ---- + ---- + ---- - z - -- + ---- + ---- +
6 4 2 6 4 2 6 4 2
a a a a a a a a a
6 6
z z
-- + --
4 2
a a |
In[18]:= | Kauffman[Knot[10, 12]][a, z] |
Out[18]= | 2 2
2 2 2 2 z 3 z z z 2 2 z 8 z
-1 + -- + -- - -- + --- - --- - -- + - + a z + 4 z + ---- - ---- -
6 4 2 9 5 3 a 8 6
a a a a a a a a
2 2 3 3 3 3 4
12 z 2 z 3 z z 4 z 5 z 3 4 5 z
----- + ---- - ---- - -- + ---- + ---- - 3 a z - 6 z - ---- +
4 2 9 7 5 3 8
a a a a a a a
4 4 4 5 5 5 5 6
8 z 23 z 4 z z 3 z z 4 z 5 6 2 z
---- + ----- + ---- + -- - ---- - -- - ---- + a z + 2 z + ---- -
6 4 2 9 7 3 a 8
a a a a a a a
6 6 6 7 7 7 7 8 8 8
5 z 14 z 5 z 2 z z z 2 z 2 z 4 z 2 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[19]:= | {Vassiliev[2][Knot[10, 12]], Vassiliev[3][Knot[10, 12]]} |
Out[19]= | {4, 6} |
In[20]:= | Kh[Knot[10, 12]][q, t] |
Out[20]= | 3 1 1 1 2 q 3 5
4 q + 3 q + ----- + ----- + ---- + --- + - + 4 q t + 3 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
4 q t + 4 q t + 3 q t + 4 q t + 3 q t + 3 q t + q t +
13 5 13 6 15 6 17 7
3 q t + q t + q t + q t |
In[21]:= | ColouredJones[Knot[10, 12], 2][q] |
Out[21]= | -7 2 4 7 -2 12 2 3 4
-15 + q - -- + -- - -- + q + -- - 2 q + 27 q - 25 q - 11 q +
6 4 3 q
q q q
5 6 7 8 9 10 11 12
44 q - 30 q - 20 q + 52 q - 28 q - 24 q + 46 q - 18 q -
13 14 15 16 17 18 19 20
23 q + 31 q - 7 q - 16 q + 15 q - q - 7 q + 5 q -
22 23
2 q + q |