In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 29, 2005, 15:27:48)... |
In[2]:= | PD[Knot[10, 15]] |
Out[2]= | PD[X[1, 4, 2, 5], X[3, 12, 4, 13], X[9, 14, 10, 15], X[13, 10, 14, 11],
X[15, 1, 16, 20], X[5, 17, 6, 16], X[7, 19, 8, 18], X[17, 7, 18, 6],
X[19, 9, 20, 8], X[11, 2, 12, 3]] |
In[3]:= | GaussCode[Knot[10, 15]] |
Out[3]= | GaussCode[-1, 10, -2, 1, -6, 8, -7, 9, -3, 4, -10, 2, -4, 3, -5, 6, -8,
7, -9, 5] |
In[4]:= | DTCode[Knot[10, 15]] |
Out[4]= | DTCode[4, 12, 16, 18, 14, 2, 10, 20, 6, 8] |
In[5]:= | br = BR[Knot[10, 15]] |
Out[5]= | BR[4, {1, 1, 1, 1, -2, 1, -2, -3, 2, -3, -3}] |
In[6]:= | {First[br], Crossings[br]} |
Out[6]= | {4, 11} |
In[7]:= | BraidIndex[Knot[10, 15]] |
Out[7]= | 4 |
In[8]:= | Show[DrawMorseLink[Knot[10, 15]]] |
| |
Out[8]= | -Graphics- |
In[9]:= | (#[Knot[10, 15]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex} |
Out[9]= | {Reversible, 2, 3, 2, NotAvailable, 1} |
In[10]:= | alex = Alexander[Knot[10, 15]][t] |
Out[10]= | 2 6 9 2 3
-9 + -- - -- + - + 9 t - 6 t + 2 t
3 2 t
t t |
In[11]:= | Conway[Knot[10, 15]][z] |
Out[11]= | 2 4 6
1 + 3 z + 6 z + 2 z |
In[12]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[12]= | {Knot[10, 15]} |
In[13]:= | {KnotDet[Knot[10, 15]], KnotSignature[Knot[10, 15]]} |
Out[13]= | {43, 2} |
In[14]:= | Jones[Knot[10, 15]][q] |
Out[14]= | -4 2 3 5 2 3 4 5 6
-6 - q + -- - -- + - + 7 q - 6 q + 6 q - 4 q + 2 q - q
3 2 q
q q |
In[15]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[15]= | {Knot[10, 15]} |
In[16]:= | A2Invariant[Knot[10, 15]][q] |
Out[16]= | -12 -4 -2 2 4 6 10 12 14 18
1 - q + q - q + q + q + 3 q + q - q - q - q |
In[17]:= | HOMFLYPT[Knot[10, 15]][a, z] |
Out[17]= | 2 2 4 4
2 3 2 2 3 z 5 z 2 2 4 z 4 z
1 - -- + -- - a + 4 z - ---- + ---- - 3 a z + 4 z - -- + ---- -
4 2 4 2 4 2
a a a a a a
6
2 4 6 z
a z + z + --
2
a |
In[18]:= | Kauffman[Knot[10, 15]][a, z] |
Out[18]= | 2 2
2 3 2 z z 3 z 3 2 z 7 z
1 - -- - -- + a - -- + -- + --- - 3 a z - 2 a z - 7 z - -- + ---- +
4 2 7 5 3 6 4
a a a a a a a
2 3 3 3 3
8 z 2 2 z 2 z 3 z z 3 3 3 4
---- - 7 a z + -- - ---- - ---- + -- + 8 a z + 7 a z + 16 z +
2 7 5 3 a
a a a a
4 4 4 5 5 5
2 z 7 z 8 z 2 4 3 z 3 z 5 z 5
---- - ---- - ---- + 15 a z + ---- - ---- - ---- - 4 a z -
6 4 2 5 3 a
a a a a a
6 6 7
3 5 6 4 z z 2 6 3 z 7 3 7
5 a z - 15 z + ---- - -- - 10 a z + ---- - 2 a z + a z +
4 2 3
a a a
8 9
8 2 z 2 8 z 9
4 z + ---- + 2 a z + -- + a z
2 a
a |
In[19]:= | {Vassiliev[2][Knot[10, 15]], Vassiliev[3][Knot[10, 15]]} |
Out[19]= | {3, 2} |
In[20]:= | Kh[Knot[10, 15]][q, t] |
Out[20]= | 3 1 1 1 2 1 3 2
4 q + 4 q + ----- + ----- + ----- + ----- + ----- + ----- + ---- +
9 5 7 4 5 4 5 3 3 3 3 2 2
q t q t q t q t q t q t q t
3 3 q 3 5 5 2 7 2 7 3 9 3
--- + --- + 3 q t + 3 q t + 3 q t + 3 q t + q t + 3 q t +
q t t
9 4 11 4 13 5
q t + q t + q t |
In[21]:= | ColouredJones[Knot[10, 15], 2][q] |
Out[21]= | -13 2 -11 6 4 7 13 2 17 19 3 26
10 + q - --- - q + --- - -- - -- + -- - -- - -- + -- + -- - -- +
12 10 9 8 7 6 5 4 3 2
q q q q q q q q q q
22 2 3 4 5 6 7 8
-- - 32 q + 19 q + 16 q - 32 q + 13 q + 17 q - 26 q + 10 q +
q
9 10 11 12 13 14 15 16 17
11 q - 17 q + 7 q + 5 q - 8 q + 3 q + q - 2 q + q |