In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[10, 2]] |
Out[2]= | PD[X[1, 4, 2, 5], X[5, 14, 6, 15], X[3, 13, 4, 12], X[13, 3, 14, 2],
X[7, 16, 8, 17], X[9, 18, 10, 19], X[11, 20, 12, 1], X[15, 6, 16, 7],
X[17, 8, 18, 9], X[19, 10, 20, 11]] |
In[3]:= | GaussCode[Knot[10, 2]] |
Out[3]= | GaussCode[-1, 4, -3, 1, -2, 8, -5, 9, -6, 10, -7, 3, -4, 2, -8, 5, -9,
6, -10, 7] |
In[4]:= | DTCode[Knot[10, 2]] |
Out[4]= | DTCode[4, 12, 14, 16, 18, 20, 2, 6, 8, 10] |
In[5]:= | br = BR[Knot[10, 2]] |
Out[5]= | BR[3, {-1, -1, -1, -1, -1, -1, -1, 2, -1, 2}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {3, 10} |
In[7]:= | BraidIndex[Knot[10, 2]] |
Out[7]= | 3 |
In[8]:= | Show[DrawMorseLink[Knot[10, 2]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[10, 2]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 3, 4, 2, NotAvailable, 1} |
In[10]:= | alex = Alexander[Knot[10, 2]][t] |
Out[10]= | -4 3 3 3 2 3 4
-3 - t + -- - -- + - + 3 t - 3 t + 3 t - t
3 2 t
t t |
In[11]:= | Conway[Knot[10, 2]][z] |
Out[11]= | 2 4 6 8
1 + 2 z - 5 z - 5 z - z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[10, 2]} |
In[13]:= | {KnotDet[Knot[10, 2]], KnotSignature[Knot[10, 2]]} |
Out[13]= | {23, -6} |
In[14]:= | Jones[Knot[10, 2]][q] |
Out[14]= | -11 2 2 3 3 3 3 2 2 -2 1
q - --- + -- - -- + -- - -- + -- - -- + -- - q + -
10 9 8 7 6 5 4 3 q
q q q q q q q q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[10, 2]} |
In[16]:= | A2Invariant[Knot[10, 2]][q] |
Out[16]= | -32 -26 -24 -22 -20 -18 -14 -10 -8 -6 -4
q - q - q - q - q + q + q + q + q + q + q |
In[17]:= | HOMFLYPT[Knot[10, 2]][a, z] |
Out[17]= | 4 6 8 4 2 6 2 8 2 4 4 6 4
4 a - 4 a + a + 10 a z - 14 a z + 6 a z + 6 a z - 16 a z +
8 4 4 6 6 6 8 6 6 8
5 a z + a z - 7 a z + a z - a z |
In[18]:= | Kauffman[Knot[10, 2]][a, z] |
Out[18]= | 4 6 8 5 7 9 11 13 4 2
4 a + 4 a + a - 2 a z - a z + a z - a z - a z - 14 a z -
6 2 8 2 12 2 14 2 5 3 7 3 9 3
21 a z - 5 a z - a z + a z - 3 a z + 3 a z + 2 a z -
11 3 13 3 4 4 6 4 8 4 10 4
2 a z + 2 a z + 16 a z + 33 a z + 11 a z - 4 a z +
12 4 5 5 7 5 9 5 11 5 4 6
2 a z + 10 a z + 2 a z - 6 a z + 2 a z - 7 a z -
6 6 8 6 10 6 5 7 7 7 9 7 4 8
18 a z - 9 a z + 2 a z - 6 a z - 4 a z + 2 a z + a z +
6 8 8 8 5 9 7 9
3 a z + 2 a z + a z + a z |
In[19]:= | {Vassiliev[2][Knot[10, 2]], Vassiliev[3][Knot[10, 2]]} |
Out[19]= | {2, -2} |
In[20]:= | Kh[Knot[10, 2]][q, t] |
Out[20]= | -7 2 1 1 1 1 1 2
q + -- + ------ + ------ + ------ + ------ + ------ + ------ +
5 23 8 21 7 19 7 19 6 17 6 17 5
q q t q t q t q t q t q t
1 1 2 2 1 1 2 1
------ + ------ + ------ + ------ + ------ + ------ + ----- + ---- +
15 5 15 4 13 4 13 3 11 3 11 2 9 2 9
q t q t q t q t q t q t q t q t
2
1 t t
---- + -- + --
7 5 q
q t q |
In[21]:= | ColouredJones[Knot[10, 2], 2][q] |
Out[21]= | -30 2 3 4 -25 4 4 4 4 4 5
1 + q - --- + --- - --- + q + --- - --- + --- - --- + --- - --- +
29 27 26 24 23 21 20 18 17
q q q q q q q q q
-16 4 6 -13 5 6 -10 5 5 5 3
q + --- - --- + q + --- - --- + q + -- - -- + -- - -- -
15 14 12 11 9 8 6 5
q q q q q q q q
-4 3 -2 1
q + -- - q - -
3 q
q |