10 110

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10 109.gif

10_109

10 111.gif

10_111

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10 110 Quick Notes


10 110 Further Notes and Views

Knot presentations

Planar diagram presentation X1627 X7,20,8,1 X3,11,4,10 X5,16,6,17 X17,8,18,9 X9,14,10,15 X11,3,12,2 X15,4,16,5 X13,19,14,18 X19,13,20,12
Gauss code -1, 7, -3, 8, -4, 1, -2, 5, -6, 3, -7, 10, -9, 6, -8, 4, -5, 9, -10, 2
Dowker-Thistlethwaite code 6 10 16 20 14 2 18 4 8 12
Conway Notation [2.2.2.20]

Three dimensional invariants

Symmetry type Chiral
Unknotting number 2
3-genus 3
Bridge index 3
Super bridge index Missing
Nakanishi index 1
Maximal Thurston-Bennequin number [-9][-3]
Hyperbolic Volume 14.7775
A-Polynomial See Data:10 110/A-polynomial

[edit Notes for 10 110's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for 10 110's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 83, -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, 3)
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 10 110. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\ r
  \  
j \
-6-5-4-3-2-101234χ
7          11
5         2 -2
3        51 4
1       52  -3
-1      85   3
-3     76    -1
-5    67     -1
-7   57      2
-9  26       -4
-11 15        4
-13 2         -2
-151          1

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, 110]]
Out[2]=  
10
In[3]:=
PD[Knot[10, 110]]
Out[3]=  
PD[X[1, 6, 2, 7], X[7, 20, 8, 1], X[3, 11, 4, 10], X[5, 16, 6, 17], 
 X[17, 8, 18, 9], X[9, 14, 10, 15], X[11, 3, 12, 2], X[15, 4, 16, 5], 

X[13, 19, 14, 18], X[19, 13, 20, 12]]
In[4]:=
GaussCode[Knot[10, 110]]
Out[4]=  
GaussCode[-1, 7, -3, 8, -4, 1, -2, 5, -6, 3, -7, 10, -9, 6, -8, 4, -5, 
  9, -10, 2]
In[5]:=
BR[Knot[10, 110]]
Out[5]=  
BR[5, {-1, 2, -1, -3, -2, -2, -2, 4, 3, -2, 3, 4}]
In[6]:=
alex = Alexander[Knot[10, 110]][t]
Out[6]=  
       -3   8    20             2    3

-25 + t - -- + -- + 20 t - 8 t + t

            2   t
t
In[7]:=
Conway[Knot[10, 110]][z]
Out[7]=  
       2      4    6
1 - 3 z  - 2 z  + z
In[8]:=
Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=  
{Knot[10, 110]}
In[9]:=
{KnotDet[Knot[10, 110]], KnotSignature[Knot[10, 110]]}
Out[9]=  
{83, -2}
In[10]:=
J=Jones[Knot[10, 110]][q]
Out[10]=  
       -7   3    7    11   13   14   13            2    3

-10 + q - -- + -- - -- + -- - -- + -- + 7 q - 3 q + q

            6    5    4    3    2   q
q q q q q
In[11]:=
Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=  
{Knot[10, 110]}
In[12]:=
A2Invariant[Knot[10, 110]][q]
Out[12]=  
     -22    -18    3     2     -10   3    2    3    2     2      4

1 + q - q + --- - --- + q - -- + -- - -- + -- - q + 3 q -

                  16    14           8    6    4    2
                 q     q            q    q    q    q

  6    10
q + q
In[13]:=
Kauffman[Knot[10, 110]][a, z]
Out[13]=  
                                                         2
 -2    4    6   z              3        5        2   3 z     2  2

-a - a - a - - - 3 a z - 6 a z - 4 a z + 2 z + ---- - a z +

                a                                      2
                                                      a

                                3
    4  2      6  2    8  2   6 z          3       3  3       5  3
 6 a  z  + 5 a  z  - a  z  + ---- + 13 a z  + 21 a  z  + 12 a  z  - 
                              a

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

                                                   6
       5       3  5       5  5      7  5      6   z        2  6
 19 a z  - 27 a  z  - 13 a  z  + 3 a  z  - 8 z  + -- - 20 a  z  - 
                                                   2
                                                  a

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

     2  8      4  8        9      3  9
10 a z + 6 a z + 2 a z + 2 a z
In[14]:=
{Vassiliev[2][Knot[10, 110]], Vassiliev[3][Knot[10, 110]]}
Out[14]=  
{0, 3}
In[15]:=
Kh[Knot[10, 110]][q, t]
Out[15]=  
6    8     1        2        1        5        2       6       5

-- + - + ------ + ------ + ------ + ------ + ----- + ----- + ----- +

3   q    15  6    13  5    11  5    11  4    9  4    9  3    7  3

q q t q t q t q t q t q t q t

   7       6      7      7     5 t                2      3  2
 ----- + ----- + ---- + ---- + --- + 5 q t + 2 q t  + 5 q  t  + 
  7  2    5  2    5      3      q
 q  t    q  t    q  t   q  t

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