In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[9, 38]] |
Out[2]= | PD[X[1, 6, 2, 7], X[5, 14, 6, 15], X[7, 18, 8, 1], X[15, 8, 16, 9],
X[3, 10, 4, 11], X[9, 4, 10, 5], X[17, 12, 18, 13],
X[11, 16, 12, 17], X[13, 2, 14, 3]] |
In[3]:= | GaussCode[Knot[9, 38]] |
Out[3]= | GaussCode[-1, 9, -5, 6, -2, 1, -3, 4, -6, 5, -8, 7, -9, 2, -4, 8, -7, 3] |
In[4]:= | DTCode[Knot[9, 38]] |
Out[4]= | DTCode[6, 10, 14, 18, 4, 16, 2, 8, 12] |
In[5]:= | br = BR[Knot[9, 38]] |
Out[5]= | BR[4, {-1, -1, -2, -2, 3, -2, 1, -2, -3, -3, -2}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 11} |
In[7]:= | BraidIndex[Knot[9, 38]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[9, 38]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[9, 38]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, {2, 3}, 2, 3, {4, 7}, 2} |
In[10]:= | alex = Alexander[Knot[9, 38]][t] |
Out[10]= | 5 14 2
19 + -- - -- - 14 t + 5 t
2 t
t |
In[11]:= | Conway[Knot[9, 38]][z] |
Out[11]= | 2 4
1 + 6 z + 5 z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[9, 38], Knot[10, 63]} |
In[13]:= | {KnotDet[Knot[9, 38]], KnotSignature[Knot[9, 38]]} |
Out[13]= | {57, -4} |
In[14]:= | Jones[Knot[9, 38]][q] |
Out[14]= | -11 3 6 8 10 10 8 7 3 -2
-q + --- - -- + -- - -- + -- - -- + -- - -- + q
10 9 8 7 6 5 4 3
q q q q q q q q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[9, 38]} |
In[16]:= | A2Invariant[Knot[9, 38]][q] |
Out[16]= | -34 -32 -30 3 2 -22 2 4 -12 2 2
-q + q + q - --- - --- - q + --- + --- + q + --- - -- +
28 24 20 16 10 8
q q q q q q
-6
q |
In[17]:= | HOMFLYPT[Knot[9, 38]][a, z] |
Out[17]= | 6 8 4 2 6 2 8 2 10 2 4 4 6 4 8 4
4 a - 3 a + a z + 7 a z - a z - a z + a z + 3 a z + a z |
In[18]:= | Kauffman[Knot[9, 38]][a, z] |
Out[18]= | 6 8 7 9 11 13 4 2 6 2
-4 a - 3 a + 3 a z + a z - a z + a z - a z + 9 a z +
8 2 10 2 12 2 5 3 7 3 9 3
10 a z + 3 a z + 3 a z - 2 a z - 2 a z + 5 a z +
11 3 13 3 4 4 6 4 8 4 10 4
3 a z - 2 a z + a z - 10 a z - 15 a z - 10 a z -
12 4 5 5 7 5 9 5 11 5 13 5
6 a z + 3 a z - 4 a z - 15 a z - 7 a z + a z +
6 6 8 6 10 6 12 6 7 7 9 7
6 a z + 6 a z + 3 a z + 3 a z + 5 a z + 9 a z +
11 7 8 8 10 8
4 a z + 2 a z + 2 a z |
In[19]:= | {Vassiliev[2][Knot[9, 38]], Vassiliev[3][Knot[9, 38]]} |
Out[19]= | {6, -14} |
In[20]:= | Kh[Knot[9, 38]][q, t] |
Out[20]= | -5 -3 1 2 1 4 2 4
q + q + ------ + ------ + ------ + ------ + ------ + ------ +
23 9 21 8 19 8 19 7 17 7 17 6
q t q t q t q t q t q t
4 6 4 4 6 4 4 3
------ + ------ + ------ + ------ + ------ + ------ + ----- + ----- +
15 6 15 5 13 5 13 4 11 4 11 3 9 3 9 2
q t q t q t q t q t q t q t q t
4 3
----- + ----
7 2 5
q t q t |
In[21]:= | ColouredJones[Knot[9, 38], 2][q] |
Out[21]= | -31 3 -29 10 16 5 38 32 27 74 37
q - --- + q + --- - --- - --- + --- - --- - --- + --- - --- -
30 28 27 26 25 24 23 22 21
q q q q q q q q q
57 98 29 77 97 14 74 71 2 50 34
--- + --- - --- - --- + --- - --- - --- + --- + --- - --- + --- +
20 19 18 17 16 15 14 13 12 11 10
q q q q q q q q q q q
7 20 8 3 3 -4
-- - -- + -- + -- - -- + q
9 8 7 6 5
q q q q q |