In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[9, 17]] |
Out[2]= | PD[X[1, 4, 2, 5], X[5, 12, 6, 13], X[3, 11, 4, 10], X[11, 3, 12, 2],
X[7, 14, 8, 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, 17]] |
Out[3]= | GaussCode[-1, 4, -3, 1, -2, 6, -5, 9, -8, 3, -4, 2, -6, 5, -7, 8, -9, 7] |
In[4]:= | DTCode[Knot[9, 17]] |
Out[4]= | DTCode[4, 10, 12, 14, 16, 2, 6, 18, 8] |
In[5]:= | br = BR[Knot[9, 17]] |
Out[5]= | BR[4, {1, -2, 1, -2, -2, -2, 3, -2, 3}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 9} |
In[7]:= | BraidIndex[Knot[9, 17]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[9, 17]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[9, 17]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 2, 3, 2, {4, 7}, 1} |
In[10]:= | alex = Alexander[Knot[9, 17]][t] |
Out[10]= | -3 5 9 2 3
-9 + t - -- + - + 9 t - 5 t + t
2 t
t |
In[11]:= | Conway[Knot[9, 17]][z] |
Out[11]= | 2 4 6
1 - 2 z + z + z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[9, 17]} |
In[13]:= | {KnotDet[Knot[9, 17]], KnotSignature[Knot[9, 17]]} |
Out[13]= | {39, -2} |
In[14]:= | Jones[Knot[9, 17]][q] |
Out[14]= | -6 3 4 6 7 6 2 3
-5 - q + -- - -- + -- - -- + - + 4 q - 2 q + q
5 4 3 2 q
q q q q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[9, 17]} |
In[16]:= | A2Invariant[Knot[9, 17]][q] |
Out[16]= | -18 -16 -12 2 -8 -6 2 2 4 8 10
-q + q + q + --- - q + q - -- - q + q + q + q
10 4
q q |
In[17]:= | HOMFLYPT[Knot[9, 17]][a, z] |
Out[17]= | 2
2 2 2 z 2 2 4 2 4 2 4
-3 + -- + 2 a - 6 z + -- + 5 a z - 2 a z - 2 z + 4 a z -
2 2
a a
4 4 2 6
a z + a z |
In[18]:= | Kauffman[Knot[9, 17]][a, z] |
Out[18]= | 2
2 2 z 3 5 2 5 z 2 2
-3 - -- - 2 a - - + a z + 3 a z + a z + 13 z + ---- + 9 a z -
2 a 2
a a
3
4 2 6 2 6 z 3 3 3 5 3 7 3 4
a z - 2 a z + ---- + 6 a z - 4 a z - 3 a z + a z - 12 z -
a
4 5
4 z 2 4 4 4 6 4 7 z 5 3 5
---- - 14 a z - 3 a z + 3 a z - ---- - 13 a z - 2 a z +
2 a
a
6 7
5 5 6 z 2 6 4 6 2 z 7 3 7
4 a z + z + -- + 4 a z + 4 a z + ---- + 5 a z + 3 a z +
2 a
a
8 2 8
z + a z |
In[19]:= | {Vassiliev[2][Knot[9, 17]], Vassiliev[3][Knot[9, 17]]} |
Out[19]= | {-2, 0} |
In[20]:= | Kh[Knot[9, 17]][q, t] |
Out[20]= | 3 4 1 2 1 2 2 4 2
-- + - + ------ + ------ + ----- + ----- + ----- + ----- + ----- +
3 q 13 5 11 4 9 4 9 3 7 3 7 2 5 2
q q t q t q t q t q t q t q t
3 4 3 t 2 3 2 3 3 5 3 7 4
---- + ---- + --- + 2 q t + q t + 3 q t + q t + q t + q t
5 3 q
q t q t |
In[21]:= | ColouredJones[Knot[9, 17], 2][q] |
Out[21]= | -17 3 -15 6 11 6 12 25 12 20 37
1 + q - --- + q + --- - --- + --- + --- - --- + -- + -- - -- +
16 14 13 12 11 10 9 8 7
q q q q q q q q q
13 28 39 8 30 32 2 3 4 5
-- + -- - -- + -- + -- - -- + 26 q - 20 q - 5 q + 17 q - 8 q -
6 5 4 3 2 q
q q q q q
6 7 8 9 10
5 q + 7 q - q - 2 q + q |