10 88

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10 87.gif

10_87

10 89.gif

10_89

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10 88 Quick Notes



Square quasi-symmetrical depiction.

Knot presentations

Planar diagram presentation X4251 X20,14,1,13 X8394 X2,9,3,10 X14,7,15,8 X18,15,19,16 X12,6,13,5 X10,18,11,17 X16,12,17,11 X6,19,7,20
Gauss code 1, -4, 3, -1, 7, -10, 5, -3, 4, -8, 9, -7, 2, -5, 6, -9, 8, -6, 10, -2
Dowker-Thistlethwaite code 4 8 12 14 2 16 20 18 10 6
Conway Notation [.21.21]

Three dimensional invariants

Symmetry type Negative amphicheiral
Unknotting number 1
3-genus 3
Bridge index 3
Super bridge index Missing
Nakanishi index 1
Maximal Thurston-Bennequin number [-6][-6]
Hyperbolic Volume 15.6466
A-Polynomial See Data:10 88/A-polynomial

[edit Notes for 10 88's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus
Topological 4 genus
Concordance genus
Rasmussen s-Invariant 0

[edit Notes for 10 88's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 101, 0 }
Jones polynomial
HOMFLY-PT polynomial (db, data sources)
Kauffman polynomial (db, data sources)
The A2 invariant
The G2 invariant

Vassiliev invariants

V2 and V3: (-1, 0)
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 0 is the signature of 10 88. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-5-4-3-2-1012345χ
11          1-1
9         3 3
7        51 -4
5       83  5
3      85   -3
1     98    1
-1    89     1
-3   58      -3
-5  38       5
-7 15        -4
-9 3         3
-111          -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, 88]]
Out[2]=  
10
In[3]:=
PD[Knot[10, 88]]
Out[3]=  
PD[X[4, 2, 5, 1], X[20, 14, 1, 13], X[8, 3, 9, 4], X[2, 9, 3, 10], 
 X[14, 7, 15, 8], X[18, 15, 19, 16], X[12, 6, 13, 5], 

X[10, 18, 11, 17], X[16, 12, 17, 11], X[6, 19, 7, 20]]
In[4]:=
GaussCode[Knot[10, 88]]
Out[4]=  
GaussCode[1, -4, 3, -1, 7, -10, 5, -3, 4, -8, 9, -7, 2, -5, 6, -9, 8, 
  -6, 10, -2]
In[5]:=
BR[Knot[10, 88]]
Out[5]=  
BR[5, {-1, 2, -1, -3, 2, -3, 2, 4, -3, 4}]
In[6]:=
alex = Alexander[Knot[10, 88]][t]
Out[6]=  
      -3   8    24             2    3

35 - t + -- - -- - 24 t + 8 t - t

           2   t
t
In[7]:=
Conway[Knot[10, 88]][z]
Out[7]=  
     2      4    6
1 - z  + 2 z  - z
In[8]:=
Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=  
{Knot[10, 88]}
In[9]:=
{KnotDet[Knot[10, 88]], KnotSignature[Knot[10, 88]]}
Out[9]=  
{101, 0}
In[10]:=
J=Jones[Knot[10, 88]][q]
Out[10]=  
      -5   4    8    13   16              2      3      4    5

17 - q + -- - -- + -- - -- - 16 q + 13 q - 8 q + 4 q - q

           4    3    2   q
q q q
In[11]:=
Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=  
{Knot[10, 88]}
In[12]:=
A2Invariant[Knot[10, 88]][q]
Out[12]=  
      -16    -14    2     3    3    2    3       2      4      8

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

                   12    10    8    4    2
                  q     q     q    q    q

    10      12    14    16
3 q + 2 q + q - q
In[13]:=
Kauffman[Knot[10, 88]][a, z]
Out[13]=  
                                                    2      2
     -2    2   z    4 z            3        2   3 z    7 z

-1 - a - a - -- - --- - 4 a z - a z + 8 z + ---- + ---- +

                3    a                            4      2
               a                                 a      a

                      3      3       3
    2  2      4  2   z    6 z    19 z          3      3  3    5  3
 7 a  z  + 3 a  z  - -- + ---- + ----- + 19 a z  + 6 a  z  - a  z  - 
                      5     3      a
                     a     a

           4       4                         5       5       5
    4   6 z    10 z        2  4      4  4   z    11 z    32 z
 8 z  - ---- - ----- - 10 a  z  - 6 a  z  + -- - ----- - ----- - 
          4      2                           5     3       a
         a      a                           a     a

                                         6      6
       5       3  5    5  5       6   4 z    2 z       2  6
 32 a z  - 11 a  z  + a  z  - 12 z  + ---- - ---- - 2 a  z  + 
                                        4      2
                                       a      a

              7       7                                  8
    4  6   7 z    14 z          7      3  7       8   6 z       2  8
 4 a  z  + ---- + ----- + 14 a z  + 7 a  z  + 12 z  + ---- + 6 a  z  + 
             3      a                                   2
            a                                          a

    9
 2 z         9
 ---- + 2 a z
a
In[14]:=
{Vassiliev[2][Knot[10, 88]], Vassiliev[3][Knot[10, 88]]}
Out[14]=  
{0, 0}
In[15]:=
Kh[Knot[10, 88]][q, t]
Out[15]=  
9           1        3       1       5       3       8       5

- + 9 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

  8      8               3        3  2      5  2      5  3      7  3
 ---- + --- + 8 q t + 8 q  t + 5 q  t  + 8 q  t  + 3 q  t  + 5 q  t  + 
  3     q t
 q  t

  7  4      9  4    11  5
q t + 3 q t + q t