In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[9, 37]] |
Out[2]= | PD[X[1, 4, 2, 5], X[7, 12, 8, 13], X[3, 11, 4, 10], X[11, 3, 12, 2],
X[5, 14, 6, 15], X[13, 6, 14, 7], X[15, 18, 16, 1], X[9, 17, 10, 16],
X[17, 9, 18, 8]] |
In[3]:= | GaussCode[Knot[9, 37]] |
Out[3]= | GaussCode[-1, 4, -3, 1, -5, 6, -2, 9, -8, 3, -4, 2, -6, 5, -7, 8, -9, 7] |
In[4]:= | DTCode[Knot[9, 37]] |
Out[4]= | DTCode[4, 10, 14, 12, 16, 2, 6, 18, 8] |
In[5]:= | br = BR[Knot[9, 37]] |
Out[5]= | BR[5, {-1, -1, 2, -1, -3, 2, 1, 4, -3, 2, -3, 4}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {5, 12} |
In[7]:= | BraidIndex[Knot[9, 37]] |
Out[7]= | 5 |
In[8]:= | Show[DrawMorseLink[Knot[9, 37]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[9, 37]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 2, 2, 3, {4, 7}, 2} |
In[10]:= | alex = Alexander[Knot[9, 37]][t] |
Out[10]= | 2 11 2
19 + -- - -- - 11 t + 2 t
2 t
t |
In[11]:= | Conway[Knot[9, 37]][z] |
Out[11]= | 2 4
1 - 3 z + 2 z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[9, 37], Knot[11, NonAlternating, 100]} |
In[13]:= | {KnotDet[Knot[9, 37]], KnotSignature[Knot[9, 37]]} |
Out[13]= | {45, 0} |
In[14]:= | Jones[Knot[9, 37]][q] |
Out[14]= | -5 3 4 7 8 2 3 4
7 - q + -- - -- + -- - - - 7 q + 5 q - 2 q + q
4 3 2 q
q q q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[9, 37]} |
In[16]:= | A2Invariant[Knot[9, 37]][q] |
Out[16]= | -16 -14 -12 -10 3 -6 4 6 8 10
-3 - q + q + q - q + -- + q - 2 q + q + 2 q - q +
8
q
12 14
q + q |
In[17]:= | HOMFLYPT[Knot[9, 37]][a, z] |
Out[17]= | 2
-4 2 2 2 z 2 2 4 2 4 2 4
-2 + a + 2 a - z - ---- + a z - a z + z + a z
2
a |
In[18]:= | Kauffman[Knot[9, 37]][a, z] |
Out[18]= | 2 2
-4 2 5 z 3 2 2 z z 2 2
-2 + a - 2 a - --- - 7 a z - 2 a z + 12 z - ---- + -- + 14 a z +
a 4 2
a a
3 3 4
4 2 2 z 6 z 3 3 3 5 3 4 z
5 a z - ---- + ---- + 13 a z + 3 a z - 2 a z - 13 z + -- -
3 a 4
a a
4 5 5
3 z 2 4 4 4 2 z 4 z 5 3 5 5 5
---- - 17 a z - 8 a z + ---- - ---- - 13 a z - 6 a z + a z +
2 3 a
a a
6 7
6 3 z 2 6 4 6 3 z 7 3 7 8 2 8
5 z + ---- + 5 a z + 3 a z + ---- + 6 a z + 3 a z + z + a z
2 a
a |
In[19]:= | {Vassiliev[2][Knot[9, 37]], Vassiliev[3][Knot[9, 37]]} |
Out[19]= | {-3, -1} |
In[20]:= | Kh[Knot[9, 37]][q, t] |
Out[20]= | 4 1 2 1 2 2 5 2
- + 4 q + ------ + ----- + ----- + ----- + ----- + ----- + ----- +
q 11 5 9 4 7 4 7 3 5 3 5 2 3 2
q t q t q t q t q t q t q t
3 5 3 3 2 5 2 5 3 7 3 9 4
---- + --- + 4 q t + 3 q t + q t + 4 q t + q t + q t + q t
3 q t
q t |
In[21]:= | ColouredJones[Knot[9, 37], 2][q] |
Out[21]= | -15 3 9 11 5 26 18 20 46 20 39 59
58 + q - --- + --- - --- - --- + -- - -- - -- + -- - -- - -- + -- -
14 12 11 10 9 8 7 6 5 4 3
q q q q q q q q q q q
14 48 2 3 4 5 6 7 8
-- - -- - 5 q - 44 q + 41 q + q - 29 q + 19 q + 3 q - 11 q +
2 q
q
9 10 11 12
5 q + q - 2 q + q |