In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[10, 19]] |
Out[2]= | PD[X[1, 6, 2, 7], X[3, 12, 4, 13], X[15, 1, 16, 20], X[7, 17, 8, 16],
X[19, 9, 20, 8], X[9, 19, 10, 18], X[17, 11, 18, 10],
X[5, 14, 6, 15], X[11, 2, 12, 3], X[13, 4, 14, 5]] |
In[3]:= | GaussCode[Knot[10, 19]] |
Out[3]= | GaussCode[-1, 9, -2, 10, -8, 1, -4, 5, -6, 7, -9, 2, -10, 8, -3, 4, -7,
6, -5, 3] |
In[4]:= | DTCode[Knot[10, 19]] |
Out[4]= | DTCode[6, 12, 14, 16, 18, 2, 4, 20, 10, 8] |
In[5]:= | br = BR[Knot[10, 19]] |
Out[5]= | BR[4, {-1, -1, -1, -1, 2, -1, 2, 2, 3, -2, 3}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 11} |
In[7]:= | BraidIndex[Knot[10, 19]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[10, 19]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[10, 19]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 2, 3, 2, NotAvailable, 1} |
In[10]:= | alex = Alexander[Knot[10, 19]][t] |
Out[10]= | 2 7 11 2 3
-11 + -- - -- + -- + 11 t - 7 t + 2 t
3 2 t
t t |
In[11]:= | Conway[Knot[10, 19]][z] |
Out[11]= | 2 4 6
1 + z + 5 z + 2 z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[10, 19]} |
In[13]:= | {KnotDet[Knot[10, 19]], KnotSignature[Knot[10, 19]]} |
Out[13]= | {51, -2} |
In[14]:= | Jones[Knot[10, 19]][q] |
Out[14]= | -6 3 5 7 8 8 2 3 4
-7 - q + -- - -- + -- - -- + - + 6 q - 3 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[10, 19]} |
In[16]:= | A2Invariant[Knot[10, 19]][q] |
Out[16]= | -18 -16 -10 2 -6 -4 -2 4 12
2 - q + q + q - -- + q - q + q + 2 q - q
8
q |
In[17]:= | HOMFLYPT[Knot[10, 19]][a, z] |
Out[17]= | 2 4
-2 2 2 3 z 2 2 4 2 4 z 2 4
3 - a - a + 5 z - ---- + a z - 2 a z + 4 z - -- + 3 a z -
2 2
a a
4 4 6 2 6
a z + z + a z |
In[18]:= | Kauffman[Knot[10, 19]][a, z] |
Out[18]= | 2
-2 2 2 z 4 z 3 5 2 9 z
3 + a + a - --- - --- - 2 a z + a z + a z - 13 z - ---- +
3 a 2
a a
3 3
4 2 6 2 7 z 13 z 3 5 3 7 3 4
3 a z - a z + ---- + ----- + 11 a z - 4 a z + a z + 23 z +
3 a
a
4 5 5
16 z 2 4 4 4 6 4 5 z 8 z 5
----- - 4 a z - 8 a z + 3 a z - ---- - ---- - 15 a z -
2 3 a
a a
6 7 7
3 5 5 5 6 10 z 2 6 4 6 z z
7 a z + 5 a z - 19 z - ----- - 3 a z + 6 a z + -- - -- +
2 3 a
a a
8 9
7 3 7 8 2 z 2 8 z 9
3 a z + 5 a z + 5 z + ---- + 3 a z + -- + a z
2 a
a |
In[19]:= | {Vassiliev[2][Knot[10, 19]], Vassiliev[3][Knot[10, 19]]} |
Out[19]= | {1, 0} |
In[20]:= | Kh[Knot[10, 19]][q, t] |
Out[20]= | 4 5 1 2 1 3 2 4 3
-- + - + ------ + ------ + ----- + ----- + ----- + ----- + ----- +
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
4 4 4 t 2 3 2 3 3 5 3
---- + ---- + --- + 3 q t + 2 q t + 4 q t + q t + 2 q t +
5 3 q
q t q t
5 4 7 4 9 5
q t + q t + q t |
In[21]:= | ColouredJones[Knot[10, 19], 2][q] |
Out[21]= | -17 3 2 5 13 9 11 29 19 18 44
11 + q - --- + --- + --- - --- + --- + --- - --- + -- + -- - -- +
16 15 14 13 12 11 10 9 8 7
q q q q q q q q q q
25 26 52 21 33 49 2 3 4 5
-- + -- - -- + -- + -- - -- + 34 q - 36 q + q + 27 q - 20 q -
6 5 4 3 2 q
q q q q q
6 7 8 9 10 11 12 13
4 q + 16 q - 7 q - 5 q + 6 q - q - 2 q + q |