In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[9, 30]] |
Out[2]= | PD[X[4, 2, 5, 1], X[10, 6, 11, 5], X[8, 3, 9, 4], X[2, 9, 3, 10],
X[14, 8, 15, 7], X[18, 15, 1, 16], X[16, 11, 17, 12],
X[12, 17, 13, 18], X[6, 14, 7, 13]] |
In[3]:= | GaussCode[Knot[9, 30]] |
Out[3]= | GaussCode[1, -4, 3, -1, 2, -9, 5, -3, 4, -2, 7, -8, 9, -5, 6, -7, 8, -6] |
In[4]:= | DTCode[Knot[9, 30]] |
Out[4]= | DTCode[4, 8, 10, 14, 2, 16, 6, 18, 12] |
In[5]:= | br = BR[Knot[9, 30]] |
Out[5]= | BR[4, {-1, -1, 2, 2, -1, 2, -3, 2, -3}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 9} |
In[7]:= | BraidIndex[Knot[9, 30]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[9, 30]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[9, 30]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 1, 3, 3, {4, 6}, 1} |
In[10]:= | alex = Alexander[Knot[9, 30]][t] |
Out[10]= | -3 5 12 2 3
17 - t + -- - -- - 12 t + 5 t - t
2 t
t |
In[11]:= | Conway[Knot[9, 30]][z] |
Out[11]= | 2 4 6
1 - z - z - z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[9, 30], Knot[11, NonAlternating, 130]} |
In[13]:= | {KnotDet[Knot[9, 30]], KnotSignature[Knot[9, 30]]} |
Out[13]= | {53, 0} |
In[14]:= | Jones[Knot[9, 30]][q] |
Out[14]= | -5 3 5 8 9 2 3 4
9 - q + -- - -- + -- - - - 8 q + 6 q - 3 q + q
4 3 2 q
q q q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[9, 30], Knot[11, NonAlternating, 114]} |
In[16]:= | A2Invariant[Knot[9, 30]][q] |
Out[16]= | -16 -12 -10 3 -6 -2 2 4 6 8
-3 - q + q - q + -- + q + q + q - 2 q + q + 2 q -
8
q
10 12
q + q |
In[17]:= | HOMFLYPT[Knot[9, 30]][a, z] |
Out[17]= | 2 4
2 2 4 2 2 z 2 2 4 2 4 z
-4 + -- + 4 a - a - 7 z + ---- + 5 a z - a z - 4 z + -- +
2 2 2
a a a
2 4 6
2 a z - z |
In[18]:= | Kauffman[Knot[9, 30]][a, z] |
Out[18]= | 2
2 2 4 z z 3 5 2 z
-4 - -- - 4 a - a + -- + - + a z + 2 a z + a z + 17 z - -- +
2 3 a 4
a a a
2 3 3
5 z 2 2 4 2 3 z 2 z 3 3 5 3 4
---- + 16 a z + 5 a z - ---- - ---- - 3 a z - 2 a z - 23 z +
2 3 a
a a
4 4 5 5
z 7 z 2 4 4 4 3 z 2 z 5 3 5
-- - ---- - 22 a z - 7 a z + ---- - ---- - 9 a z - 3 a z +
4 2 3 a
a a a
6 7
5 5 6 5 z 2 6 4 6 4 z 7 3 7
a z + 10 z + ---- + 8 a z + 3 a z + ---- + 7 a z + 3 a z +
2 a
a
8 2 8
z + a z |
In[19]:= | {Vassiliev[2][Knot[9, 30]], Vassiliev[3][Knot[9, 30]]} |
Out[19]= | {-1, -1} |
In[20]:= | Kh[Knot[9, 30]][q, t] |
Out[20]= | 5 1 2 1 3 2 5 3
- + 5 q + ------ + ----- + ----- + ----- + ----- + ----- + ----- +
q 11 5 9 4 7 4 7 3 5 3 5 2 3 2
q t q t q t q t q t q t q t
4 5 3 3 2 5 2 5 3 7 3
---- + --- + 4 q t + 4 q t + 2 q t + 4 q t + q t + 2 q t +
3 q t
q t
9 4
q t |
In[21]:= | ColouredJones[Knot[9, 30], 2][q] |
Out[21]= | -15 3 10 13 6 33 26 25 64 31 50 85
85 + q - --- + --- - --- - --- + -- - -- - -- + -- - -- - -- + -- -
14 12 11 10 9 8 7 6 5 4 3
q q q q q q q q q q q
25 66 2 3 4 5 6 7 8
-- - -- - 13 q - 63 q + 63 q - q - 43 q + 31 q + 4 q - 18 q +
2 q
q
9 10 11 12
8 q + 2 q - 3 q + q |