K11a60

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K11a59.gif

K11a59

K11a61.gif

K11a61

K11a60.gif Visit K11a60's page at Knotilus!

Visit K11a60's page at the original Knot Atlas!

K11a60 Quick Notes


K11a60 Further Notes and Views

Knot presentations

Planar diagram presentation X4251 X8394 X16,6,17,5 X10,8,11,7 X2,9,3,10 X18,12,19,11 X20,14,21,13 X6,16,7,15 X22,18,1,17 X12,20,13,19 X14,22,15,21
Gauss code 1, -5, 2, -1, 3, -8, 4, -2, 5, -4, 6, -10, 7, -11, 8, -3, 9, -6, 10, -7, 11, -9
Dowker-Thistlethwaite code 4 8 16 10 2 18 20 6 22 12 14
Conway Notation [41,22,2]

Three dimensional invariants

Symmetry type Reversible
Unknotting number
3-genus 3
Bridge index 3
Super bridge index Missing
Nakanishi index Missing
Maximal Thurston-Bennequin number Data:K11a60/ThurstonBennequinNumber
Hyperbolic Volume 13.059
A-Polynomial See Data:K11a60/A-polynomial

[edit Notes for K11a60's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for K11a60's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 85, 4 }
Jones polynomial
HOMFLY-PT polynomial (db, data sources)
Kauffman polynomial (db, data sources)
The A2 invariant Data:K11a60/QuantumInvariant/A2/1,0
The G2 invariant Data:K11a60/QuantumInvariant/G2/1,0

Vassiliev invariants

V2 and V3: (3, 8)
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 4 is the signature of K11a60. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-2-10123456789χ
23           1-1
21          2 2
19         41 -3
17        52  3
15       74   -3
13      75    2
11     67     1
9    57      -2
7   36       3
5  25        -3
3 14         3
1 1          -1
-11           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[11, Alternating, 60]]
Out[2]=  
11
In[3]:=
PD[Knot[11, Alternating, 60]]
Out[3]=  
PD[X[4, 2, 5, 1], X[8, 3, 9, 4], X[16, 6, 17, 5], X[10, 8, 11, 7], 
 X[2, 9, 3, 10], X[18, 12, 19, 11], X[20, 14, 21, 13], 

 X[6, 16, 7, 15], X[22, 18, 1, 17], X[12, 20, 13, 19], 

X[14, 22, 15, 21]]
In[4]:=
GaussCode[Knot[11, Alternating, 60]]
Out[4]=  
GaussCode[1, -5, 2, -1, 3, -8, 4, -2, 5, -4, 6, -10, 7, -11, 8, -3, 9, 
  -6, 10, -7, 11, -9]
In[5]:=
BR[Knot[11, Alternating, 60]]
Out[5]=  
BR[Knot[11, Alternating, 60]]
In[6]:=
alex = Alexander[Knot[11, Alternating, 60]][t]
Out[6]=  
     3    12   18              2      3

19 - -- + -- - -- - 18 t + 12 t - 3 t

     3    2   t
t t
In[7]:=
Conway[Knot[11, Alternating, 60]][z]
Out[7]=  
       2      4      6
1 + 3 z  - 6 z  - 3 z
In[8]:=
Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=  
{Knot[11, Alternating, 60]}
In[9]:=
{KnotDet[Knot[11, Alternating, 60]], KnotSignature[Knot[11, Alternating, 60]]}
Out[9]=  
{85, 4}
In[10]:=
J=Jones[Knot[11, Alternating, 60]][q]
Out[10]=  
             2      3       4       5       6       7      8      9

1 - 2 q + 5 q - 8 q + 11 q - 13 q + 14 q - 12 q + 9 q - 6 q +

    10    11
3 q - q
In[11]:=
Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=  
{Knot[11, Alternating, 60], Knot[11, Alternating, 220]}
In[12]:=
A2Invariant[Knot[11, Alternating, 60]][q]
Out[12]=  
       6    8      10    12    14    16      18      20    22    24

1 + 2 q - q + 3 q - q - q + q - 3 q + 2 q - q + q +

    26    28    30    32    34
2 q - q + q - q - q
In[13]:=
Kauffman[Knot[11, Alternating, 60]][a, z]
Out[13]=  
                                                    2      2       2
2    5    5    2     -2    z    z    3 z   z    2 z    5 z    22 z

--- + -- + -- + -- - a + --- + -- + --- + -- + ---- - ---- - ----- -

10    8    6    4          13    9    7     5    12     10      8

a a a a a a a a a a a

     2      2      2      3    3       3      3      3      4      4
 25 z    6 z    4 z    2 z    z    14 z    8 z    3 z    6 z    4 z
 ----- - ---- + ---- - ---- - -- - ----- - ---- + ---- - ---- + ---- + 
   6       4      2     13     9     7       5      3     12     10
  a       a      a     a      a     a       a      a     a      a

     4       4      4      4    5       5      5       5       5
 37 z    39 z    8 z    4 z    z     6 z    3 z    27 z    11 z
 ----- + ----- + ---- - ---- + --- - ---- + ---- + ----- + ----- - 
   8       6       4      2     13    11      9      7       5
  a       a       a      a     a     a       a      a       a

    5      6      6       6       6      6    6      7      7
 6 z    3 z    6 z    22 z    23 z    9 z    z    4 z    4 z
 ---- + ---- - ---- - ----- - ----- - ---- + -- + ---- - ---- - 
   3     12     10      8       6       4     2    11      9
  a     a      a       a       a       a     a    a       a

     7      7      7      8      8      8      8      9      9
 19 z    9 z    2 z    4 z    5 z    4 z    3 z    3 z    6 z
 ----- - ---- + ---- + ---- + ---- + ---- + ---- + ---- + ---- + 
   7       5      3     10      8      6      4      9      7
  a       a      a     a       a      a      a      a      a

    9    10    10
 3 z    z     z
 ---- + --- + ---
   5     8     6
a a a
In[14]:=
{Vassiliev[2][Knot[11, Alternating, 60]], Vassiliev[3][Knot[11, Alternating, 60]]}
Out[14]=  
{0, 8}
In[15]:=
Kh[Knot[11, Alternating, 60]][q, t]
Out[15]=  
                          3
  3      5    1     q   q       5        7        7  2      9  2

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

                2   t   t
             q t

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

    15  6      17  6      17  7      19  7    19  8      21  8    23  9
4 q t + 5 q t + 2 q t + 4 q t + q t + 2 q t + q t