10 87: Difference between revisions

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{{Template:Basic Knot Invariants|name=10_87}}

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{| align=left
|- valign=top
|[[Image:{{PAGENAME}}.gif]]
|{{Rolfsen Knot Site Links|n=10|k=87|KnotilusURL=http://srankin.math.uwo.ca/cgi-bin/retrieve.cgi/1,-10,2,-1,3,-6,5,-7,10,-2,7,-9,8,-3,4,-5,9,-8,6,-4/goTop.html}}
|{{:{{PAGENAME}} Quick Notes}}
|}

<br style="clear:both" />

{{:{{PAGENAME}} Further Notes and Views}}

{{Knot Presentations}}
{{3D Invariants}}
{{4D Invariants}}
{{Polynomial Invariants}}
{{Vassiliev Invariants}}

===[[Khovanov Homology]]===

The coefficients of the monomials <math>t^rq^j</math> are shown, along with their alternating sums <math>\chi</math> (fixed <math>j</math>, alternation over <math>r</math>). The squares with <font class=HLYellow>yellow</font> highlighting are those on the "critical diagonals", where <math>j-2r=s+1</math> or <math>j-2r=s+1</math>, where <math>s=</math>{{Data:{{PAGENAME}}/Signature}} is the signature of {{PAGENAME}}. Nonzero entries off the critical diagonals (if any exist) are highlighted in <font class=HLRed>red</font>.

<center><table border=1>
<tr align=center>
<td width=13.3333%><table cellpadding=0 cellspacing=0>
<tr><td>\</td><td>&nbsp;</td><td>r</td></tr>
<tr><td>&nbsp;</td><td>&nbsp;\&nbsp;</td><td>&nbsp;</td></tr>
<tr><td>j</td><td>&nbsp;</td><td>\</td></tr>
</table></td>
<td width=6.66667%>-4</td ><td width=6.66667%>-3</td ><td width=6.66667%>-2</td ><td width=6.66667%>-1</td ><td width=6.66667%>0</td ><td width=6.66667%>1</td ><td width=6.66667%>2</td ><td width=6.66667%>3</td ><td width=6.66667%>4</td ><td width=6.66667%>5</td ><td width=6.66667%>6</td ><td width=13.3333%>&chi;</td></tr>
<tr align=center><td>13</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>1</td><td>1</td></tr>
<tr align=center><td>11</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>3</td><td bgcolor=yellow>&nbsp;</td><td>-3</td></tr>
<tr align=center><td>9</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>4</td><td bgcolor=yellow>1</td><td>&nbsp;</td><td>3</td></tr>
<tr align=center><td>7</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>6</td><td bgcolor=yellow>3</td><td>&nbsp;</td><td>&nbsp;</td><td>-3</td></tr>
<tr align=center><td>5</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>7</td><td bgcolor=yellow>4</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>3</td></tr>
<tr align=center><td>3</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>6</td><td bgcolor=yellow>6</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>0</td></tr>
<tr align=center><td>1</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>7</td><td bgcolor=yellow>7</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>0</td></tr>
<tr align=center><td>-1</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>4</td><td bgcolor=yellow>7</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>3</td></tr>
<tr align=center><td>-3</td><td>&nbsp;</td><td>&nbsp;</td><td bgcolor=yellow>2</td><td bgcolor=yellow>6</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>-4</td></tr>
<tr align=center><td>-5</td><td>&nbsp;</td><td bgcolor=yellow>1</td><td bgcolor=yellow>4</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>3</td></tr>
<tr align=center><td>-7</td><td bgcolor=yellow>&nbsp;</td><td bgcolor=yellow>2</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>-2</td></tr>
<tr align=center><td>-9</td><td bgcolor=yellow>1</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>1</td></tr>
</table></center>

{{Computer Talk Header}}

<table>
<tr valign=top>
<td><pre style="color: blue; border: 0px; padding: 0em">In[1]:=&nbsp;&nbsp;&nbsp;&nbsp;</pre></td>
<td align=left><pre style="color: red; border: 0px; padding: 0em">&lt;&lt; KnotTheory`</pre></td>
</tr>
<tr valign=top><td colspan=2><pre style="border: 0px; padding: 0em">Loading KnotTheory` (version of August 17, 2005, 14:44:34)...</pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[2]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Crossings[Knot[10, 87]]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[2]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>10</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[3]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>PD[Knot[10, 87]]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[3]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>PD[X[4, 2, 5, 1], X[10, 4, 11, 3], X[14, 6, 15, 5], X[20, 16, 1, 15],
X[16, 7, 17, 8], X[6, 19, 7, 20], X[8, 12, 9, 11], X[18, 13, 19, 14],
X[12, 17, 13, 18], X[2, 10, 3, 9]]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[4]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>GaussCode[Knot[10, 87]]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[4]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>GaussCode[1, -10, 2, -1, 3, -6, 5, -7, 10, -2, 7, -9, 8, -3, 4, -5, 9,
-8, 6, -4]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[5]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>BR[Knot[10, 87]]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[5]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>BR[4, {1, 1, 1, 2, -1, -3, 2, -3, 2, -3, -3}]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[6]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>alex = Alexander[Knot[10, 87]][t]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[6]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 2 9 18 2 3
23 - -- + -- - -- - 18 t + 9 t - 2 t
3 2 t
t t</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[7]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Conway[Knot[10, 87]][z]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[7]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 4 6
1 - 3 z - 2 z</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[8]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Select[AllKnots[], (alex === Alexander[#][t])&]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[8]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{Knot[10, 87], Knot[10, 98], Knot[11, Alternating, 58],
Knot[11, Alternating, 165], Knot[11, NonAlternating, 72]}</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[9]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>{KnotDet[Knot[10, 87]], KnotSignature[Knot[10, 87]]}</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[9]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{81, 0}</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[10]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>J=Jones[Knot[10, 87]][q]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[10]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> -4 3 6 10 2 3 4 5 6
13 + q - -- + -- - -- - 13 q + 13 q - 10 q + 7 q - 4 q + q
3 2 q
q q</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[11]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[11]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{Knot[10, 87]}</nowiki></pre></td></tr>
<math>\textrm{Include}(\textrm{ColouredJonesM.mhtml})</math>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[12]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>A2Invariant[Knot[10, 87]][q]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[12]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> -12 -10 -8 -6 3 2 2 4 8 10
-2 + q - q + q + q - -- + -- + q + 2 q + 4 q - 2 q -
4 2
q q
16 18
2 q + q</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[13]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Kauffman[Knot[10, 87]][a, z]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[13]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 2 2 2
-4 3 2 z z 3 2 z z 3 z
-2 - a - -- - a - -- - - + a z + a z + 7 z + -- + -- + ---- +
2 3 a 6 4 2
a a a a a
3 3 3
2 2 4 2 7 z 15 z 13 z 3 3 3 4
3 a z - a z + ---- + ----- + ----- + 2 a z - 3 a z - 5 z -
5 3 a
a a
4 4 4 5 5 5
2 z 5 z 8 z 2 4 4 4 11 z 23 z 21 z
---- + ---- + ---- - 5 a z + a z - ----- - ----- - ----- -
6 4 2 5 3 a
a a a a a
6 6 6 7
5 3 5 6 z 12 z 21 z 2 6 4 z
6 a z + 3 a z - 3 z + -- - ----- - ----- + 5 a z + ---- +
6 4 2 5
a a a a
7 7 8 8 9 9
5 z 7 z 7 8 5 z 10 z 2 z 2 z
---- + ---- + 6 a z + 5 z + ---- + ----- + ---- + ----
3 a 4 2 3 a
a a a a</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[14]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>{Vassiliev[2][Knot[10, 87]], Vassiliev[3][Knot[10, 87]]}</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[14]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{0, 1}</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[15]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Kh[Knot[10, 87]][q, t]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[15]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>7 1 2 1 4 2 6 4
- + 7 q + ----- + ----- + ----- + ----- + ----- + ---- + --- + 7 q t +
q 9 4 7 3 5 3 5 2 3 2 3 q t
q t q t q t q t q t q t
3 3 2 5 2 5 3 7 3 7 4 9 4
6 q t + 6 q t + 7 q t + 4 q t + 6 q t + 3 q t + 4 q t +
9 5 11 5 13 6
q t + 3 q t + q t</nowiki></pre></td></tr>
</table>

Revision as of 21:48, 27 August 2005


10 86.gif

10_86

10 88.gif

10_88

10 87.gif Visit 10 87's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 10 87's page at Knotilus!

Visit 10 87's page at the original Knot Atlas!

10 87 Quick Notes


10 87 Further Notes and Views

Knot presentations

Planar diagram presentation X4251 X10,4,11,3 X14,6,15,5 X20,16,1,15 X16,7,17,8 X6,19,7,20 X8,12,9,11 X18,13,19,14 X12,17,13,18 X2,10,3,9
Gauss code 1, -10, 2, -1, 3, -6, 5, -7, 10, -2, 7, -9, 8, -3, 4, -5, 9, -8, 6, -4
Dowker-Thistlethwaite code 4 10 14 16 2 8 18 20 12 6
Conway Notation [.22.20]

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 [-5][-7]
Hyperbolic Volume 14.2736
A-Polynomial See Data:10 87/A-polynomial

[edit Notes for 10 87's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for 10 87's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 81, 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: (0, 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 0 is the signature of 10 87. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\ r
  \  
j \
-4-3-2-10123456χ
13          11
11         3 -3
9        41 3
7       63  -3
5      74   3
3     66    0
1    77     0
-1   47      3
-3  26       -4
-5 14        3
-7 2         -2
-91          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, 87]]
Out[2]=  
10
In[3]:=
PD[Knot[10, 87]]
Out[3]=  
PD[X[4, 2, 5, 1], X[10, 4, 11, 3], X[14, 6, 15, 5], X[20, 16, 1, 15], 
 X[16, 7, 17, 8], X[6, 19, 7, 20], X[8, 12, 9, 11], X[18, 13, 19, 14], 

X[12, 17, 13, 18], X[2, 10, 3, 9]]
In[4]:=
GaussCode[Knot[10, 87]]
Out[4]=  
GaussCode[1, -10, 2, -1, 3, -6, 5, -7, 10, -2, 7, -9, 8, -3, 4, -5, 9, 
  -8, 6, -4]
In[5]:=
BR[Knot[10, 87]]
Out[5]=  
BR[4, {1, 1, 1, 2, -1, -3, 2, -3, 2, -3, -3}]
In[6]:=
alex = Alexander[Knot[10, 87]][t]
Out[6]=  
     2    9    18             2      3

23 - -- + -- - -- - 18 t + 9 t - 2 t

     3    2   t
t t
In[7]:=
Conway[Knot[10, 87]][z]
Out[7]=  
       4      6
1 - 3 z  - 2 z
In[8]:=
Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=  
{Knot[10, 87], Knot[10, 98], Knot[11, Alternating, 58], 
  Knot[11, Alternating, 165], Knot[11, NonAlternating, 72]}
In[9]:=
{KnotDet[Knot[10, 87]], KnotSignature[Knot[10, 87]]}
Out[9]=  
{81, 0}
In[10]:=
J=Jones[Knot[10, 87]][q]
Out[10]=  
      -4   3    6    10              2       3      4      5    6

13 + q - -- + -- - -- - 13 q + 13 q - 10 q + 7 q - 4 q + q

           3    2   q
q q
In[11]:=
Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=  
{Knot[10, 87]}
In[12]:=
A2Invariant[Knot[10, 87]][q]
Out[12]=  
      -12    -10    -8    -6   3    2     2      4      8      10

-2 + q - q + q + q - -- + -- + q + 2 q + 4 q - 2 q -

                               4    2
                              q    q

    16    18
2 q + q
In[13]:=
Kauffman[Knot[10, 87]][a, z]
Out[13]=  
                                                   2    2      2
     -4   3     2   z    z          3        2   z    z    3 z

-2 - a - -- - a - -- - - + a z + a z + 7 z + -- + -- + ---- +

           2         3   a                        6    4     2
          a         a                            a    a     a

                      3       3       3
    2  2    4  2   7 z    15 z    13 z         3      3  3      4
 3 a  z  - a  z  + ---- + ----- + ----- + 2 a z  - 3 a  z  - 5 z  - 
                     5      3       a
                    a      a

    4      4      4                         5       5       5
 2 z    5 z    8 z       2  4    4  4   11 z    23 z    21 z
 ---- + ---- + ---- - 5 a  z  + a  z  - ----- - ----- - ----- - 
   6      4      2                        5       3       a
  a      a      a                        a       a

                            6       6       6                7
      5      3  5      6   z    12 z    21 z       2  6   4 z
 6 a z  + 3 a  z  - 3 z  + -- - ----- - ----- + 5 a  z  + ---- + 
                            6     4       2                 5
                           a     a       a                 a

    7      7                      8       8      9      9
 5 z    7 z         7      8   5 z    10 z    2 z    2 z
 ---- + ---- + 6 a z  + 5 z  + ---- + ----- + ---- + ----
   3     a                       4      2       3     a
a a a a
In[14]:=
{Vassiliev[2][Knot[10, 87]], Vassiliev[3][Knot[10, 87]]}
Out[14]=  
{0, 1}
In[15]:=
Kh[Knot[10, 87]][q, t]
Out[15]=  
7           1       2       1       4       2      6      4

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

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

    3        3  2      5  2      5  3      7  3      7  4      9  4
 6 q  t + 6 q  t  + 7 q  t  + 4 q  t  + 6 q  t  + 3 q  t  + 4 q  t  + 

  9  5      11  5    13  6
q t + 3 q t + q t