10 52

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10 51.gif

10_51

10 53.gif

10_53

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10 52 Quick Notes


10 52 Further Notes and Views

Knot presentations

Planar diagram presentation X6271 X8493 X14,6,15,5 X20,15,1,16 X16,9,17,10 X10,19,11,20 X18,11,19,12 X12,17,13,18 X2837 X4,14,5,13
Gauss code 1, -9, 2, -10, 3, -1, 9, -2, 5, -6, 7, -8, 10, -3, 4, -5, 8, -7, 6, -4
Dowker-Thistlethwaite code 6 8 14 2 16 18 4 20 12 10
Conway Notation [311,3,2]

Three dimensional invariants

Symmetry type Reversible
Unknotting number 2
3-genus 3
Bridge index 3
Super bridge index Missing
Nakanishi index 1
Maximal Thurston-Bennequin number [-4][-8]
Hyperbolic Volume 11.5375
A-Polynomial See Data:10 52/A-polynomial

[edit Notes for 10 52's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus
Topological 4 genus
Concordance genus
Rasmussen s-Invariant -2

[edit Notes for 10 52's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 59, 2 }
Jones polynomial
HOMFLY-PT polynomial (db, data sources)
Kauffman polynomial (db, data sources)
The A2 invariant
The G2 invariant

Vassiliev invariants

V2 and V3: (3, 1)
V2,1 through V6,9:
V2,1 V3,1 V4,1 V4,2 V4,3 V5,1 V5,2 V5,3 V5,4 V6,1 V6,2 V6,3 V6,4 V6,5 V6,6 V6,7 V6,8 V6,9

V2,1 through V6,9 were provided by Petr Dunin-Barkowski <barkovs@itep.ru>, Andrey Smirnov <asmirnov@itep.ru>, and Alexei Sleptsov <sleptsov@itep.ru> and uploaded on October 2010 by User:Drorbn. Note that they are normalized differently than V2 and V3.

Khovanov Homology

The coefficients of the monomials are shown, along with their alternating sums (fixed , alternation over ). The squares with yellow highlighting are those on the "critical diagonals", where or , where 2 is the signature of 10 52. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-5-4-3-2-1012345χ
13          1-1
11         2 2
9        41 -3
7       42  2
5      54   -1
3     54    1
1    46     2
-1   34      -1
-3  14       3
-5 13        -2
-7 1         1
-91          -1
Integral Khovanov Homology

(db, data source)

  

Computer Talk

Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session.

In[1]:=    
<< KnotTheory`
Loading KnotTheory` (version of August 17, 2005, 14:44:34)...
In[2]:=
Crossings[Knot[10, 52]]
Out[2]=  
10
In[3]:=
PD[Knot[10, 52]]
Out[3]=  
PD[X[6, 2, 7, 1], X[8, 4, 9, 3], X[14, 6, 15, 5], X[20, 15, 1, 16], 
 X[16, 9, 17, 10], X[10, 19, 11, 20], X[18, 11, 19, 12], 

X[12, 17, 13, 18], X[2, 8, 3, 7], X[4, 14, 5, 13]]
In[4]:=
GaussCode[Knot[10, 52]]
Out[4]=  
GaussCode[1, -9, 2, -10, 3, -1, 9, -2, 5, -6, 7, -8, 10, -3, 4, -5, 8, 
  -7, 6, -4]
In[5]:=
BR[Knot[10, 52]]
Out[5]=  
BR[4, {1, 1, 1, -2, 1, 1, -2, -2, -3, 2, -3}]
In[6]:=
alex = Alexander[Knot[10, 52]][t]
Out[6]=  
      2    7    13             2      3

-15 + -- - -- + -- + 13 t - 7 t + 2 t

      3    2   t
t t
In[7]:=
Conway[Knot[10, 52]][z]
Out[7]=  
       2      4      6
1 + 3 z  + 5 z  + 2 z
In[8]:=
Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=  
{Knot[10, 23], Knot[10, 52]}
In[9]:=
{KnotDet[Knot[10, 52]], KnotSignature[Knot[10, 52]]}
Out[9]=  
{59, 2}
In[10]:=
J=Jones[Knot[10, 52]][q]
Out[10]=  
      -4   2    4    7             2      3      4      5    6

-8 - q + -- - -- + - + 10 q - 9 q + 8 q - 6 q + 3 q - q

           3    2   q
q q
In[11]:=
Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=  
{Knot[10, 52]}
In[12]:=
A2Invariant[Knot[10, 52]][q]
Out[12]=  
     -12    -8    -6   2       2      6      8    10    12    14

3 - q - q - q + -- + 2 q + 2 q - 2 q + q - q - q +

                       4
                      q

  16    18
q - q
In[13]:=
Kauffman[Knot[10, 52]][a, z]
Out[13]=  
                                                        2      2
    -4      2   2 z   7 z              3        2   6 z    4 z

4 - a + 2 a + --- - --- - 9 a z - 4 a z - 9 z + ---- + ---- -

                 5     a                              4      2
                a                                    a      a

            3      3      3       3
    2  2   z    5 z    2 z    24 z          3      3  3       4
 7 a  z  + -- - ---- + ---- + ----- + 24 a z  + 8 a  z  + 19 z  + 
            7     5      3      a
           a     a      a

    4       4      4                 5       5       5
 3 z    12 z    9 z        2  4   6 z    11 z    28 z          5
 ---- - ----- - ---- + 13 a  z  + ---- - ----- - ----- - 16 a z  - 
   6      4       2                 5      3       a
  a      a       a                 a      a

                      6      6                7      7
    3  5       6   8 z    3 z       2  6   7 z    7 z       7
 5 a  z  - 20 z  + ---- - ---- - 9 a  z  + ---- + ---- + a z  + 
                     4      2                3     a
                    a      a                a

                   8              9
  3  7      8   4 z       2  8   z       9
 a  z  + 6 z  + ---- + 2 a  z  + -- + a z
                  2              a
a
In[14]:=
{Vassiliev[2][Knot[10, 52]], Vassiliev[3][Knot[10, 52]]}
Out[14]=  
{0, 1}
In[15]:=
Kh[Knot[10, 52]][q, t]
Out[15]=  
         3     1       1       1       3       1       4      3

6 q + 5 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

  4    4 q      3        5        5  2      7  2      7  3      9  3
 --- + --- + 4 q  t + 5 q  t + 4 q  t  + 4 q  t  + 2 q  t  + 4 q  t  + 
 q t    t

  9  4      11  4    13  5
q t + 2 q t + q t