In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[9, 26]] |
Out[2]= | PD[X[1, 4, 2, 5], X[5, 12, 6, 13], X[3, 11, 4, 10], X[11, 3, 12, 2],
X[13, 18, 14, 1], X[7, 15, 8, 14], X[17, 7, 18, 6], X[9, 17, 10, 16],
X[15, 9, 16, 8]] |
In[3]:= | GaussCode[Knot[9, 26]] |
Out[3]= | GaussCode[-1, 4, -3, 1, -2, 7, -6, 9, -8, 3, -4, 2, -5, 6, -9, 8, -7, 5] |
In[4]:= | DTCode[Knot[9, 26]] |
Out[4]= | DTCode[4, 10, 12, 14, 16, 2, 18, 8, 6] |
In[5]:= | br = BR[Knot[9, 26]] |
Out[5]= | BR[4, {1, 1, 1, -2, 1, -2, 3, -2, 3}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 9} |
In[7]:= | BraidIndex[Knot[9, 26]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[9, 26]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[9, 26]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 1, 3, 2, {4, 6}, 1} |
In[10]:= | alex = Alexander[Knot[9, 26]][t] |
Out[10]= | -3 5 11 2 3
-13 + t - -- + -- + 11 t - 5 t + t
2 t
t |
In[11]:= | Conway[Knot[9, 26]][z] |
Out[11]= | 4 6
1 + z + z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[9, 26], Knot[11, NonAlternating, 25]} |
In[13]:= | {KnotDet[Knot[9, 26]], KnotSignature[Knot[9, 26]]} |
Out[13]= | {47, 2} |
In[14]:= | Jones[Knot[9, 26]][q] |
Out[14]= | -2 3 2 3 4 5 6 7
-4 - q + - + 7 q - 8 q + 8 q - 7 q + 5 q - 3 q + q
q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[9, 26]} |
In[16]:= | A2Invariant[Knot[9, 26]][q] |
Out[16]= | -6 -4 2 4 6 8 14 16 18 22
1 - q + q + 3 q - q + 2 q - q - 2 q + q - q + q |
In[17]:= | HOMFLYPT[Knot[9, 26]][a, z] |
Out[17]= | 2 2 2 4 4 6
-6 3 3 2 z 5 z 6 z 4 2 z 4 z z
a - -- + -- - 2 z + -- - ---- + ---- - z - ---- + ---- + --
4 2 6 4 2 4 2 2
a a a a a a a a |
In[18]:= | Kauffman[Knot[9, 26]][a, z] |
Out[18]= | 2 2 2 2
-6 3 3 z z z z 2 z 2 z 11 z 13 z
-a - -- - -- + -- + -- - -- - - + 5 z - -- + ---- + ----- + ----- -
4 2 7 5 3 a 8 6 4 2
a a a a a a a a a
3 3 3 3 4 4 4
4 z 2 z 7 z 3 z 3 4 z 5 z 14 z
---- - ---- + ---- + ---- - 2 a z - 8 z + -- - ---- - ----- -
7 5 3 a 8 6 4
a a a a a a
4 5 5 5 5 6 6 6
16 z 3 z z 11 z 6 z 5 6 4 z 6 z 5 z
----- + ---- - -- - ----- - ---- + a z + 3 z + ---- + ---- + ---- +
2 7 5 3 a 6 4 2
a a a a a a a
7 7 7 8 8
3 z 6 z 3 z z z
---- + ---- + ---- + -- + --
5 3 a 4 2
a a a a |
In[19]:= | {Vassiliev[2][Knot[9, 26]], Vassiliev[3][Knot[9, 26]]} |
Out[19]= | {0, -1} |
In[20]:= | Kh[Knot[9, 26]][q, t] |
Out[20]= | 3 1 2 1 2 2 q 3 5
5 q + 3 q + ----- + ----- + ---- + --- + --- + 4 q t + 4 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 + 2 q t + 3 q t + q t +
13 5 15 6
2 q t + q t |
In[21]:= | ColouredJones[Knot[9, 26], 2][q] |
Out[21]= | -7 3 9 11 5 26 2 3 4
-19 + q - -- + -- - -- - -- + -- - 19 q + 48 q - 23 q - 37 q +
6 4 3 2 q
q q q q
5 6 7 8 9 10 11 12
64 q - 20 q - 49 q + 64 q - 12 q - 46 q + 48 q - 3 q -
13 14 15 16 17 18 19 20
31 q + 25 q + q - 14 q + 8 q + q - 3 q + q |