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{{Rolfsen Knot Page|
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n = 6 |
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k = 1 |
<span id="top"></span>
KnotilusURL = http://srankin.math.uwo.ca/cgi-bin/retrieve.cgi/-1,4,-3,1,-5,6,-2,3,-4,2,-6,5/goTop.html |
<!-- -->
braid_table = <table cellspacing=0 cellpadding=0 border=0>
<!-- this relies on transclusion for next and previous links -->
<tr><td>[[Image:BraidPart3.gif]][[Image:BraidPart3.gif]][[Image:BraidPart0.gif]][[Image:BraidPart1.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]]</td></tr>
{{Knot Navigation Links|ext=gif}}
<tr><td>[[Image:BraidPart4.gif]][[Image:BraidPart4.gif]][[Image:BraidPart3.gif]][[Image:BraidPart2.gif]][[Image:BraidPart3.gif]][[Image:BraidPart0.gif]]</td></tr>

<tr><td>[[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart4.gif]][[Image:BraidPart1.gif]][[Image:BraidPart4.gif]][[Image:BraidPart1.gif]]</td></tr>
{{Rolfsen Knot Page Header|n=6|k=1|KnotilusURL=http://srankin.math.uwo.ca/cgi-bin/retrieve.cgi/-1,4,-3,1,-5,6,-2,3,-4,2,-6,5/goTop.html}}
<tr><td>[[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart2.gif]][[Image:BraidPart0.gif]][[Image:BraidPart2.gif]]</td></tr>

</table> |
<br style="clear:both" />
braid_crossings = 7 |

braid_width = 4 |
{{:{{PAGENAME}} Further Notes and Views}}
braid_index = 4 |

same_alexander = [[9_46]], [[K11n67]], [[K11n97]], [[K11n139]], |
{{Knot Presentations}}
same_jones = |
{{3D Invariants}}
khovanov_table = <table border=1>
{{4D Invariants}}
{{Polynomial Invariants}}
{{Vassiliev Invariants}}

{{Khovanov Homology|table=<table border=1>
<tr align=center>
<tr align=center>
<td width=18.1818%><table cellpadding=0 cellspacing=0>
<td width=18.1818%><table cellpadding=0 cellspacing=0>
<tr><td>\</td><td>&nbsp;</td><td>r</td></tr>
<tr><td>\</td><td>&nbsp;</td><td>r</td></tr>
<tr><td>&nbsp;</td><td>&nbsp;\&nbsp;</td><td>&nbsp;</td></tr>
<tr><td>&nbsp;</td><td>&nbsp;\&nbsp;</td><td>&nbsp;</td></tr>
<tr><td>j</td><td>&nbsp;</td><td>\</td></tr>
<tr><td>j</td><td>&nbsp;</td><td>\</td></tr>
</table></td>
</table></td>
<td width=9.09091%>-4</td ><td width=9.09091%>-3</td ><td width=9.09091%>-2</td ><td width=9.09091%>-1</td ><td width=9.09091%>0</td ><td width=9.09091%>1</td ><td width=9.09091%>2</td ><td width=18.1818%>&chi;</td></tr>
<td width=9.09091%>-4</td ><td width=9.09091%>-3</td ><td width=9.09091%>-2</td ><td width=9.09091%>-1</td ><td width=9.09091%>0</td ><td width=9.09091%>1</td ><td width=9.09091%>2</td ><td width=18.1818%>&chi;</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>1</td><td>1</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>1</td><td>1</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>&nbsp;</td><td bgcolor=yellow>&nbsp;</td><td>0</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>&nbsp;</td><td bgcolor=yellow>&nbsp;</td><td>0</td></tr>
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<tr align=center><td>-7</td><td bgcolor=yellow>&nbsp;</td><td bgcolor=yellow>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>0</td></tr>
<tr align=center><td>-7</td><td bgcolor=yellow>&nbsp;</td><td bgcolor=yellow>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>0</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>1</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>1</td></tr>
</table>}}
</table> |
coloured_jones_2 = <math>q^6-q^5+2 q^3-3 q^2+4-4 q^{-1} +4 q^{-3} -3 q^{-4} +3 q^{-6} -2 q^{-7} - q^{-8} +2 q^{-9} - q^{-10} - q^{-11} + q^{-12} </math> |
{{Computer Talk Header}}
coloured_jones_3 = <math>q^{12}-q^{11}+q^8-2 q^7+2 q^5+q^4-4 q^3+4 q+2-5 q^{-1} - q^{-2} +5 q^{-3} + q^{-4} -4 q^{-5} -2 q^{-6} +4 q^{-7} + q^{-8} -3 q^{-9} -2 q^{-10} +3 q^{-11} +2 q^{-12} -2 q^{-13} -2 q^{-14} + q^{-15} +3 q^{-16} - q^{-17} -2 q^{-18} +2 q^{-20} - q^{-22} - q^{-23} + q^{-24} </math> |

coloured_jones_4 = <math>q^{20}-q^{19}-q^{16}+2 q^{15}-2 q^{14}+q^{13}+q^{12}-2 q^{11}+2 q^{10}-4 q^9+3 q^8+4 q^7-3 q^6+q^5-7 q^4+4 q^3+6 q^2-3 q+2-10 q^{-1} +4 q^{-2} +7 q^{-3} -3 q^{-4} +2 q^{-5} -10 q^{-6} +4 q^{-7} +6 q^{-8} -3 q^{-9} +3 q^{-10} -8 q^{-11} +3 q^{-12} +5 q^{-13} -2 q^{-14} +3 q^{-15} -7 q^{-16} + q^{-17} +3 q^{-18} - q^{-19} +4 q^{-20} -6 q^{-21} + q^{-23} +5 q^{-25} -4 q^{-26} - q^{-27} - q^{-28} +5 q^{-30} -2 q^{-31} - q^{-32} - q^{-33} - q^{-34} +3 q^{-35} - q^{-38} - q^{-39} + q^{-40} </math> |
<table>
coloured_jones_5 = <math>q^{30}-q^{29}-q^{26}+2 q^{24}-q^{23}+q^{21}-2 q^{20}-q^{19}+2 q^{18}+2 q^{16}+2 q^{15}-3 q^{14}-4 q^{13}-q^{12}+2 q^{11}+5 q^{10}+5 q^9-4 q^8-7 q^7-4 q^6+q^5+8 q^4+7 q^3-3 q^2-8 q-5+8 q^{-2} +8 q^{-3} - q^{-4} -8 q^{-5} -7 q^{-6} + q^{-7} +8 q^{-8} +6 q^{-9} -8 q^{-11} -6 q^{-12} +2 q^{-13} +7 q^{-14} +4 q^{-15} -7 q^{-17} -5 q^{-18} + q^{-19} +5 q^{-20} +3 q^{-21} + q^{-22} -4 q^{-23} -4 q^{-24} +3 q^{-26} +3 q^{-27} + q^{-28} - q^{-29} -2 q^{-30} -2 q^{-31} +2 q^{-33} + q^{-34} + q^{-35} -2 q^{-37} -2 q^{-38} +3 q^{-41} +2 q^{-42} - q^{-43} -2 q^{-44} -2 q^{-45} - q^{-46} +2 q^{-47} +3 q^{-48} - q^{-50} - q^{-51} -2 q^{-52} +2 q^{-54} + q^{-55} - q^{-58} - q^{-59} + q^{-60} </math> |
<tr valign=top>
coloured_jones_6 = <math>q^{42}-q^{41}-q^{38}+3 q^{35}-2 q^{34}+q^{32}-2 q^{31}-q^{30}+5 q^{28}-2 q^{27}+q^{26}+2 q^{25}-5 q^{24}-4 q^{23}-q^{22}+8 q^{21}+4 q^{19}+4 q^{18}-10 q^{17}-9 q^{16}-5 q^{15}+11 q^{14}+4 q^{13}+9 q^{12}+8 q^{11}-14 q^{10}-14 q^9-9 q^8+12 q^7+5 q^6+13 q^5+12 q^4-15 q^3-16 q^2-12 q+13+3 q^{-1} +14 q^{-2} +15 q^{-3} -15 q^{-4} -16 q^{-5} -13 q^{-6} +12 q^{-7} +2 q^{-8} +14 q^{-9} +15 q^{-10} -15 q^{-11} -16 q^{-12} -12 q^{-13} +13 q^{-14} +2 q^{-15} +13 q^{-16} +13 q^{-17} -14 q^{-18} -15 q^{-19} -11 q^{-20} +13 q^{-21} +2 q^{-22} +11 q^{-23} +11 q^{-24} -11 q^{-25} -12 q^{-26} -10 q^{-27} +11 q^{-28} +9 q^{-30} +10 q^{-31} -8 q^{-32} -9 q^{-33} -9 q^{-34} +8 q^{-35} -3 q^{-36} +7 q^{-37} +9 q^{-38} -4 q^{-39} -6 q^{-40} -7 q^{-41} +6 q^{-42} -6 q^{-43} +5 q^{-44} +7 q^{-45} - q^{-46} -2 q^{-47} -4 q^{-48} +5 q^{-49} -8 q^{-50} +2 q^{-51} +4 q^{-52} - q^{-55} +6 q^{-56} -7 q^{-57} - q^{-58} + q^{-62} +7 q^{-63} -4 q^{-64} - q^{-65} -2 q^{-66} - q^{-67} - q^{-68} +6 q^{-70} - q^{-71} - q^{-73} - q^{-74} -2 q^{-75} - q^{-76} +3 q^{-77} + q^{-79} - q^{-82} - q^{-83} + q^{-84} </math> |
<td><pre style="color: blue; border: 0px; padding: 0em">In[1]:=&nbsp;&nbsp;&nbsp;&nbsp;</pre></td>
coloured_jones_7 = <math>q^{56}-q^{55}-q^{52}+q^{49}+2 q^{48}-2 q^{47}+q^{45}-2 q^{44}-q^{42}+2 q^{41}+4 q^{40}-3 q^{39}+q^{37}-4 q^{36}-q^{35}-2 q^{34}+4 q^{33}+7 q^{32}-q^{31}-2 q^{29}-9 q^{28}-3 q^{27}-3 q^{26}+6 q^{25}+15 q^{24}+4 q^{23}+3 q^{22}-7 q^{21}-17 q^{20}-9 q^{19}-7 q^{18}+10 q^{17}+23 q^{16}+11 q^{15}+8 q^{14}-8 q^{13}-25 q^{12}-16 q^{11}-11 q^{10}+10 q^9+28 q^8+14 q^7+14 q^6-7 q^5-28 q^4-19 q^3-15 q^2+8 q+30+15 q^{-1} +16 q^{-2} -5 q^{-3} -28 q^{-4} -18 q^{-5} -17 q^{-6} +6 q^{-7} +29 q^{-8} +16 q^{-9} +17 q^{-10} -6 q^{-11} -28 q^{-12} -16 q^{-13} -16 q^{-14} +5 q^{-15} +29 q^{-16} +17 q^{-17} +15 q^{-18} -7 q^{-19} -28 q^{-20} -14 q^{-21} -15 q^{-22} +5 q^{-23} +28 q^{-24} +16 q^{-25} +13 q^{-26} -7 q^{-27} -26 q^{-28} -12 q^{-29} -14 q^{-30} +4 q^{-31} +24 q^{-32} +14 q^{-33} +12 q^{-34} -5 q^{-35} -22 q^{-36} -10 q^{-37} -12 q^{-38} + q^{-39} +19 q^{-40} +11 q^{-41} +13 q^{-42} - q^{-43} -17 q^{-44} -8 q^{-45} -12 q^{-46} -2 q^{-47} +14 q^{-48} +7 q^{-49} +12 q^{-50} +4 q^{-51} -11 q^{-52} -6 q^{-53} -11 q^{-54} -5 q^{-55} +9 q^{-56} +2 q^{-57} +10 q^{-58} +7 q^{-59} -6 q^{-60} -2 q^{-61} -8 q^{-62} -6 q^{-63} +4 q^{-64} -2 q^{-65} +6 q^{-66} +7 q^{-67} -3 q^{-68} +2 q^{-69} -3 q^{-70} -4 q^{-71} +2 q^{-72} -5 q^{-73} +2 q^{-74} +4 q^{-75} -3 q^{-76} +3 q^{-77} + q^{-78} +3 q^{-80} -5 q^{-81} - q^{-82} + q^{-83} -5 q^{-84} +2 q^{-85} + q^{-86} +2 q^{-87} +5 q^{-88} -2 q^{-89} - q^{-90} -4 q^{-92} - q^{-93} - q^{-94} + q^{-95} +5 q^{-96} + q^{-99} -2 q^{-100} - q^{-101} -2 q^{-102} - q^{-103} +2 q^{-104} + q^{-105} + q^{-107} - q^{-110} - q^{-111} + q^{-112} </math> |
<td align=left><pre style="color: red; border: 0px; padding: 0em">&lt;&lt; KnotTheory`</pre></td>
computer_talk =
</tr>
<table>
<tr valign=top><td colspan=2><pre style="border: 0px; padding: 0em">Loading KnotTheory` (version of August 27, 2005, 21:41:56)...</pre></td></tr>
<tr valign=top>

<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[6, 1]]</nowiki></pre></td></tr>
<td><pre style="color: blue; border: 0px; padding: 0em">In[1]:=&nbsp;&nbsp;&nbsp;&nbsp;</pre></td>
<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>6</nowiki></pre></td></tr>
<td align=left><pre style="color: red; border: 0px; padding: 0em">&lt;&lt; KnotTheory`</pre></td>
</tr>

<tr valign=top><td colspan=2><nowiki>Loading KnotTheory` (version of August 29, 2005, 15:33:11)...</nowiki></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[6, 1]]</nowiki></pre></td></tr>
</table>
<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[1, 4, 2, 5], X[7, 10, 8, 11], X[3, 9, 4, 8], X[9, 3, 10, 2],
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[2]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>PD[Knot[6, 1]]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[2]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>PD[X[1, 4, 2, 5], X[7, 10, 8, 11], X[3, 9, 4, 8], X[9, 3, 10, 2],
X[5, 12, 6, 1], X[11, 6, 12, 7]]</nowiki></pre></td></tr>
X[5, 12, 6, 1], X[11, 6, 12, 7]]</nowiki></code></td></tr>
</table>

<table><tr align=left>
<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[6, 1]]</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, 4, -3, 1, -5, 6, -2, 3, -4, 2, -6, 5]</nowiki></pre></td></tr>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[3]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>GaussCode[Knot[6, 1]]</nowiki></code></td></tr>

<tr align=left>
<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[6, 1]]</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, -2, 1, 3, -2, 3}]</nowiki></pre></td></tr>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[3]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>GaussCode[-1, 4, -3, 1, -5, 6, -2, 3, -4, 2, -6, 5]</nowiki></code></td></tr>

</table>
<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[6, 1]][t]</nowiki></pre></td></tr>
<table><tr align=left>
<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
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[4]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>DTCode[Knot[6, 1]]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[4]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>DTCode[4, 8, 12, 10, 2, 6]</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[5]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>br = BR[Knot[6, 1]]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[5]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>BR[4, {-1, -1, -2, 1, 3, -2, 3}]</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[6]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{First[br], Crossings[br]}</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[6]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{4, 7}</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[7]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>BraidIndex[Knot[6, 1]]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[7]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>4</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[8]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Show[DrawMorseLink[Knot[6, 1]]]</nowiki></code></td></tr>
<tr align=left><td></td><td>[[Image:6_1_ML.gif]]</td></tr><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[8]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>-Graphics-</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[9]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> (#[Knot[6, 1]]&) /@ {
SymmetryType, UnknottingNumber, ThreeGenus,
BridgeIndex, SuperBridgeIndex, NakanishiIndex
}</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[9]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{Reversible, 1, 1, 2, {3, 4}, 1}</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[10]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>alex = Alexander[Knot[6, 1]][t]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[10]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> 2
5 - - - 2 t
5 - - - 2 t
t</nowiki></pre></td></tr>
t</nowiki></code></td></tr>
</table>

<table><tr align=left>
<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[6, 1]][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> 2
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[11]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Conway[Knot[6, 1]][z]</nowiki></code></td></tr>
1 - 2 z</nowiki></pre></td></tr>
<tr align=left>

<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>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[11]:=</code></td>
<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[6, 1], Knot[9, 46], Knot[11, NonAlternating, 67],
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> 2
1 - 2 z</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[12]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Select[AllKnots[], (alex === Alexander[#][t])&]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[12]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{Knot[6, 1], Knot[9, 46], Knot[11, NonAlternating, 67],
Knot[11, NonAlternating, 97], Knot[11, NonAlternating, 139]}</nowiki></pre></td></tr>
Knot[11, NonAlternating, 97], Knot[11, NonAlternating, 139]}</nowiki></code></td></tr>
</table>

<table><tr align=left>
<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[6, 1]], KnotSignature[Knot[6, 1]]}</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>{9, 0}</nowiki></pre></td></tr>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[13]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{KnotDet[Knot[6, 1]], KnotSignature[Knot[6, 1]]}</nowiki></code></td></tr>

<tr align=left>
<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[6, 1]][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 -2 2 2
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[13]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{9, 0}</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[14]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Jones[Knot[6, 1]][q]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[14]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> -4 -3 -2 2 2
2 + q - q + q - - - q + q
2 + q - q + q - - - q + q
q</nowiki></pre></td></tr>
q</nowiki></code></td></tr>
</table>

<table><tr align=left>
<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[6, 1]}</nowiki></pre></td></tr>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[15]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]</nowiki></code></td></tr>

<tr align=left>
<math>\textrm{Include}(\textrm{ColouredJonesM.mhtml})</math>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[15]:=</code></td>

<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[6, 1]][q]</nowiki></pre></td></tr>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{Knot[6, 1]}</nowiki></code></td></tr>
</table>
<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> -14 -12 -6 -4 2 6 8
q + q - q - q + q + q + q</nowiki></pre></td></tr>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[16]:=</code></td>

<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[6, 1]][a, z]</nowiki></pre></td></tr>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>A2Invariant[Knot[6, 1]][q]</nowiki></code></td></tr>
<tr align=left>
<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 3
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[16]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> -14 -12 -6 -4 2 6 8
q + q - q - q + q + q + q</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[17]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>HOMFLYPT[Knot[6, 1]][a, z]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[17]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> -2 2 4 2 2 2
a - a + a - z - a z</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[18]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Kauffman[Knot[6, 1]][a, z]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[18]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> 2 3
-2 2 4 3 z 2 2 4 2 z
-2 2 4 3 z 2 2 4 2 z
-a + a + a + 2 a z + 2 a z + -- - 4 a z - 3 a z + -- -
-a + a + a + 2 a z + 2 a z + -- - 4 a z - 3 a z + -- -
Line 100: Line 189:
3 3 3 4 2 4 4 4 5 3 5
3 3 3 4 2 4 4 4 5 3 5
2 a z - 3 a z + z + 2 a z + a z + a z + a z</nowiki></pre></td></tr>
2 a z - 3 a z + z + 2 a z + a z + a z + a z</nowiki></code></td></tr>
</table>

<table><tr align=left>
<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[6, 1]], Vassiliev[3][Knot[6, 1]]}</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>{-2, 1}</nowiki></pre></td></tr>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[19]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{Vassiliev[2][Knot[6, 1]], Vassiliev[3][Knot[6, 1]]}</nowiki></code></td></tr>

<tr align=left>
<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[6, 1]][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>1 1 1 1 1 1 5 2
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[19]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>{-2, 1}</nowiki></code></td></tr>
</table>
<table><tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[20]:=</code></td>
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>Kh[Knot[6, 1]][q, t]</nowiki></code></td></tr>
<tr align=left>
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[20]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>1 1 1 1 1 1 5 2
- + 2 q + ----- + ----- + ----- + ---- + --- + q t + q t
- + 2 q + ----- + ----- + ----- + ---- + --- + q t + q t
q 9 4 5 3 5 2 3 q t
q 9 4 5 3 5 2 3 q t
q t q t q t q t</nowiki></pre></td></tr>
q t q t q t q t</nowiki></code></td></tr>

</table>
</table>
<table><tr align=left>

<td width=70px><code style="color: blue; border: 0px; padding: 0em">In[21]:=</code></td>
See/edit the [[Rolfsen_Splice_Template]].
<td><code style="white-space: pre; color: red; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki>ColouredJones[Knot[6, 1], 2][q]</nowiki></code></td></tr>

<tr align=left>
[[Category:Knot Page]]
<td width=70px><code style="color: blue; border: 0px; padding: 0em">Out[21]:=</code></td>
<td><code style="white-space: pre; color: black; border: 0px; padding: 0em; background-color: rgb(255,255,255);"><nowiki> -12 -11 -10 2 -8 2 3 3 4 4 2
4 + q - q - q + -- - q - -- + -- - -- + -- - - - 3 q +
9 7 6 4 3 q
q q q q q
3 5 6
2 q - q + q</nowiki></code></td></tr>
</table> }}

Latest revision as of 23:10, 27 May 2009

5 2.gif

5_2

6 2.gif

6_2

6 1.gif
(KnotPlot image)

See the full Rolfsen Knot Table.

Visit 6 1's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 6 1 at Knotilus!

6_1 is also known as "Stevedore's Knot" (see e.g. [1]), and as the pretzel knot P(5,-1,-1).


A Kolam of a 3x3 dot array
3D depiction
Polygonal depiction
Simple square depiction
An other one
Necklace

Knot presentations

Planar diagram presentation X1425 X7,10,8,11 X3948 X9,3,10,2 X5,12,6,1 X11,6,12,7
Gauss code -1, 4, -3, 1, -5, 6, -2, 3, -4, 2, -6, 5
Dowker-Thistlethwaite code 4 8 12 10 2 6
Conway Notation [42]


Minimum Braid Representative A Morse Link Presentation An Arc Presentation
BraidPart3.gifBraidPart3.gifBraidPart0.gifBraidPart1.gifBraidPart0.gifBraidPart0.gif
BraidPart4.gifBraidPart4.gifBraidPart3.gifBraidPart2.gifBraidPart3.gifBraidPart0.gif
BraidPart0.gifBraidPart0.gifBraidPart4.gifBraidPart1.gifBraidPart4.gifBraidPart1.gif
BraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart2.gifBraidPart0.gifBraidPart2.gif

Length is 7, width is 4,

Braid index is 4

6 1 ML.gif 6 1 AP.gif
[{8, 5}, {4, 6}, {5, 3}, {2, 4}, {3, 1}, {7, 2}, {6, 8}, {1, 7}]

[edit Notes on presentations of 6 1]

knot 6_1.
A graph, knot 6_1

Three dimensional invariants

Symmetry type Reversible
Unknotting number 1
3-genus 1
Bridge index 2
Super bridge index
Nakanishi index 1
Maximal Thurston-Bennequin number [-5][-3]
Hyperbolic Volume 3.16396
A-Polynomial See Data:6 1/A-polynomial

[edit Notes for 6 1's three dimensional invariants]
6_1 is a ribbon knot (drawings by Yoko Mizuma):

a ribbon diagram
isotopy to a ribbon
6_1 has two slice disks, by Scott Carter
Scott Carter notes that 6_1 bounds two distinct slice disks. He says: "this was spoken of in Fox's Example 10, 11, and 12 in a Quick Trip through Knot Theory ... BTW, the cover of Carter and Saito's Knotted Surfaces and Their Diagrams contains an illustration of such a slice disk". A picture is on the right.

Four dimensional invariants

Smooth 4 genus
Topological 4 genus Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 0}
Concordance genus
Rasmussen s-Invariant 0

[edit Notes for 6 1's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 9, 0 }
Jones polynomial
HOMFLY-PT polynomial (db, data sources)
Kauffman polynomial (db, data sources)
The A2 invariant
The G2 invariant

"Similar" Knots (within the Atlas)

Same Alexander/Conway Polynomial: {9_46, K11n67, K11n97, K11n139,}

Same Jones Polynomial (up to mirroring, ): {}

Vassiliev invariants

V2 and V3: (-2, 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 Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle j} , alternation over ). The squares with yellow highlighting are those on the "critical diagonals", where or , where 0 is the signature of 6 1. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-4-3-2-1012χ
5      11
3       0
1    21 1
-1   11  0
-3   1   -1
-5 11    0
-7       0
-91      1
Integral Khovanov Homology

(db, data source)

  

The Coloured Jones Polynomials