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{{Knot Presentations}}
{{Knot Presentations}}

<center><table border=1 cellpadding=10><tr align=center valign=top>
<td>
[[Braid Representatives|Minimum Braid Representative]]:
<table cellspacing=0 cellpadding=0 border=0>
<tr><td>[[Image:BraidPart1.gif]][[Image:BraidPart0.gif]][[Image:BraidPart1.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]]</td></tr>
<tr><td>[[Image:BraidPart2.gif]][[Image:BraidPart3.gif]][[Image:BraidPart2.gif]][[Image:BraidPart3.gif]][[Image:BraidPart0.gif]][[Image:BraidPart3.gif]][[Image:BraidPart0.gif]]</td></tr>
<tr><td>[[Image:BraidPart0.gif]][[Image:BraidPart4.gif]][[Image:BraidPart0.gif]][[Image:BraidPart4.gif]][[Image:BraidPart1.gif]][[Image:BraidPart4.gif]][[Image:BraidPart1.gif]]</td></tr>
<tr><td>[[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart0.gif]][[Image:BraidPart2.gif]][[Image:BraidPart0.gif]][[Image:BraidPart2.gif]]</td></tr>
</table>

[[Invariants from Braid Theory|Length]] is 7, width is 4.

[[Invariants from Braid Theory|Braid index]] is 4.
</td>
<td>
[[Lightly Documented Features|A Morse Link Presentation]]:

[[Image:{{PAGENAME}}_ML.gif]]
</td>
</tr></table></center>

{{3D Invariants}}
{{3D Invariants}}
{{4D Invariants}}
{{4D Invariants}}
{{Polynomial Invariants}}
{{Polynomial Invariants}}

=== "Similar" Knots (within the Atlas) ===

Same [[The Alexander-Conway Polynomial|Alexander/Conway Polynomial]]:
{[[K11n28]], ...}

Same [[The Jones Polynomial|Jones Polynomial]] (up to mirroring, <math>q\leftrightarrow q^{-1}</math>):
{...}

{{Vassiliev Invariants}}
{{Vassiliev Invariants}}


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<tr align=center><td>-7</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>-1</td></tr>
<tr align=center><td>-7</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>-1</td></tr>
</table>}}
</table>}}

{{Display Coloured Jones|J2=<math>q^{12}-2 q^{11}-q^{10}+6 q^9-5 q^8-5 q^7+14 q^6-7 q^5-11 q^4+20 q^3-7 q^2-15 q+21-5 q^{-1} -14 q^{-2} +16 q^{-3} -2 q^{-4} -9 q^{-5} +8 q^{-6} -3 q^{-8} + q^{-9} </math>|J3=<math>q^{24}-2 q^{23}-q^{22}+2 q^{21}+5 q^{20}-4 q^{19}-9 q^{18}+4 q^{17}+16 q^{16}-3 q^{15}-23 q^{14}-q^{13}+31 q^{12}+5 q^{11}-38 q^{10}-11 q^9+43 q^8+19 q^7-48 q^6-23 q^5+50 q^4+28 q^3-50 q^2-32 q+49+32 q^{-1} -43 q^{-2} -34 q^{-3} +40 q^{-4} +28 q^{-5} -28 q^{-6} -28 q^{-7} +23 q^{-8} +20 q^{-9} -12 q^{-10} -17 q^{-11} +9 q^{-12} +9 q^{-13} -3 q^{-14} -5 q^{-15} +3 q^{-17} - q^{-18} </math>|J4=<math>q^{40}-2 q^{39}-q^{38}+2 q^{37}+q^{36}+6 q^{35}-8 q^{34}-7 q^{33}+2 q^{32}+4 q^{31}+25 q^{30}-14 q^{29}-23 q^{28}-10 q^{27}+3 q^{26}+62 q^{25}-7 q^{24}-38 q^{23}-39 q^{22}-16 q^{21}+106 q^{20}+17 q^{19}-39 q^{18}-76 q^{17}-54 q^{16}+141 q^{15}+50 q^{14}-24 q^{13}-109 q^{12}-98 q^{11}+162 q^{10}+79 q^9-4 q^8-129 q^7-131 q^6+167 q^5+98 q^4+16 q^3-136 q^2-149 q+156+103 q^{-1} +31 q^{-2} -125 q^{-3} -147 q^{-4} +125 q^{-5} +90 q^{-6} +44 q^{-7} -93 q^{-8} -127 q^{-9} +82 q^{-10} +61 q^{-11} +47 q^{-12} -50 q^{-13} -90 q^{-14} +40 q^{-15} +28 q^{-16} +36 q^{-17} -17 q^{-18} -47 q^{-19} +15 q^{-20} +6 q^{-21} +17 q^{-22} -2 q^{-23} -16 q^{-24} +3 q^{-25} +5 q^{-27} -3 q^{-29} + q^{-30} </math>|J5=<math>q^{60}-2 q^{59}-q^{58}+2 q^{57}+q^{56}+2 q^{55}+2 q^{54}-6 q^{53}-9 q^{52}+2 q^{51}+7 q^{50}+12 q^{49}+11 q^{48}-11 q^{47}-29 q^{46}-19 q^{45}+9 q^{44}+39 q^{43}+45 q^{42}+3 q^{41}-56 q^{40}-72 q^{39}-26 q^{38}+60 q^{37}+109 q^{36}+61 q^{35}-55 q^{34}-141 q^{33}-110 q^{32}+33 q^{31}+173 q^{30}+162 q^{29}-189 q^{27}-221 q^{26}-45 q^{25}+197 q^{24}+278 q^{23}+96 q^{22}-198 q^{21}-324 q^{20}-149 q^{19}+187 q^{18}+368 q^{17}+202 q^{16}-180 q^{15}-400 q^{14}-242 q^{13}+159 q^{12}+427 q^{11}+283 q^{10}-147 q^9-446 q^8-311 q^7+132 q^6+452 q^5+335 q^4-111 q^3-455 q^2-353 q+98+441 q^{-1} +354 q^{-2} -62 q^{-3} -420 q^{-4} -363 q^{-5} +49 q^{-6} +378 q^{-7} +341 q^{-8} - q^{-9} -335 q^{-10} -330 q^{-11} -11 q^{-12} +269 q^{-13} +283 q^{-14} +55 q^{-15} -211 q^{-16} -253 q^{-17} -50 q^{-18} +141 q^{-19} +190 q^{-20} +76 q^{-21} -95 q^{-22} -149 q^{-23} -55 q^{-24} +50 q^{-25} +91 q^{-26} +56 q^{-27} -24 q^{-28} -63 q^{-29} -33 q^{-30} +9 q^{-31} +32 q^{-32} +21 q^{-33} -15 q^{-35} -17 q^{-36} +2 q^{-37} +9 q^{-38} +4 q^{-39} -5 q^{-42} +3 q^{-44} - q^{-45} </math>|J6=<math>q^{84}-2 q^{83}-q^{82}+2 q^{81}+q^{80}+2 q^{79}-2 q^{78}+4 q^{77}-8 q^{76}-9 q^{75}+5 q^{74}+6 q^{73}+12 q^{72}+q^{71}+15 q^{70}-24 q^{69}-35 q^{68}-8 q^{67}+8 q^{66}+37 q^{65}+27 q^{64}+67 q^{63}-35 q^{62}-88 q^{61}-70 q^{60}-36 q^{59}+47 q^{58}+79 q^{57}+200 q^{56}+22 q^{55}-116 q^{54}-179 q^{53}-170 q^{52}-41 q^{51}+90 q^{50}+398 q^{49}+192 q^{48}-23 q^{47}-249 q^{46}-364 q^{45}-271 q^{44}-38 q^{43}+560 q^{42}+435 q^{41}+224 q^{40}-184 q^{39}-517 q^{38}-591 q^{37}-318 q^{36}+595 q^{35}+650 q^{34}+561 q^{33}+16 q^{32}-556 q^{31}-899 q^{30}-672 q^{29}+511 q^{28}+775 q^{27}+886 q^{26}+275 q^{25}-498 q^{24}-1130 q^{23}-1000 q^{22}+373 q^{21}+823 q^{20}+1137 q^{19}+507 q^{18}-404 q^{17}-1281 q^{16}-1245 q^{15}+243 q^{14}+828 q^{13}+1305 q^{12}+674 q^{11}-315 q^{10}-1362 q^9-1398 q^8+133 q^7+804 q^6+1395 q^5+787 q^4-225 q^3-1371 q^2-1467 q+18+729 q^{-1} +1400 q^{-2} +862 q^{-3} -102 q^{-4} -1279 q^{-5} -1449 q^{-6} -118 q^{-7} +572 q^{-8} +1288 q^{-9} +890 q^{-10} +66 q^{-11} -1058 q^{-12} -1311 q^{-13} -249 q^{-14} +332 q^{-15} +1031 q^{-16} +825 q^{-17} +241 q^{-18} -724 q^{-19} -1034 q^{-20} -312 q^{-21} +76 q^{-22} +669 q^{-23} +640 q^{-24} +335 q^{-25} -373 q^{-26} -667 q^{-27} -264 q^{-28} -90 q^{-29} +321 q^{-30} +383 q^{-31} +299 q^{-32} -127 q^{-33} -331 q^{-34} -145 q^{-35} -122 q^{-36} +100 q^{-37} +161 q^{-38} +183 q^{-39} -22 q^{-40} -124 q^{-41} -44 q^{-42} -74 q^{-43} +14 q^{-44} +44 q^{-45} +79 q^{-46} - q^{-47} -35 q^{-48} -6 q^{-49} -27 q^{-50} +6 q^{-52} +26 q^{-53} -2 q^{-54} -9 q^{-55} +3 q^{-56} -7 q^{-57} +5 q^{-60} -3 q^{-62} + q^{-63} </math>|J7=<math>q^{112}-2 q^{111}-q^{110}+2 q^{109}+q^{108}+2 q^{107}-2 q^{106}+2 q^{104}-8 q^{103}-6 q^{102}+4 q^{101}+6 q^{100}+14 q^{99}+2 q^{98}-2 q^{97}+5 q^{96}-27 q^{95}-28 q^{94}-9 q^{93}+8 q^{92}+49 q^{91}+37 q^{90}+25 q^{89}+25 q^{88}-58 q^{87}-93 q^{86}-81 q^{85}-53 q^{84}+76 q^{83}+123 q^{82}+140 q^{81}+149 q^{80}-30 q^{79}-165 q^{78}-250 q^{77}-275 q^{76}-44 q^{75}+154 q^{74}+325 q^{73}+461 q^{72}+217 q^{71}-77 q^{70}-391 q^{69}-661 q^{68}-446 q^{67}-101 q^{66}+368 q^{65}+854 q^{64}+741 q^{63}+372 q^{62}-239 q^{61}-984 q^{60}-1057 q^{59}-750 q^{58}-4 q^{57}+1036 q^{56}+1344 q^{55}+1174 q^{54}+369 q^{53}-956 q^{52}-1583 q^{51}-1633 q^{50}-821 q^{49}+776 q^{48}+1739 q^{47}+2061 q^{46}+1329 q^{45}-498 q^{44}-1789 q^{43}-2451 q^{42}-1857 q^{41}+147 q^{40}+1772 q^{39}+2782 q^{38}+2352 q^{37}+228 q^{36}-1684 q^{35}-3024 q^{34}-2818 q^{33}-617 q^{32}+1557 q^{31}+3231 q^{30}+3224 q^{29}+954 q^{28}-1422 q^{27}-3361 q^{26}-3554 q^{25}-1278 q^{24}+1274 q^{23}+3479 q^{22}+3840 q^{21}+1535 q^{20}-1168 q^{19}-3540 q^{18}-4050 q^{17}-1755 q^{16}+1044 q^{15}+3592 q^{14}+4235 q^{13}+1934 q^{12}-955 q^{11}-3618 q^{10}-4354 q^9-2082 q^8+849 q^7+3599 q^6+4443 q^5+2233 q^4-730 q^3-3566 q^2-4497 q-2339+596 q^{-1} +3437 q^{-2} +4481 q^{-3} +2486 q^{-4} -398 q^{-5} -3297 q^{-6} -4431 q^{-7} -2556 q^{-8} +194 q^{-9} +3011 q^{-10} +4263 q^{-11} +2666 q^{-12} +81 q^{-13} -2708 q^{-14} -4040 q^{-15} -2651 q^{-16} -333 q^{-17} +2251 q^{-18} +3675 q^{-19} +2636 q^{-20} +618 q^{-21} -1817 q^{-22} -3250 q^{-23} -2449 q^{-24} -819 q^{-25} +1279 q^{-26} +2701 q^{-27} +2262 q^{-28} +983 q^{-29} -853 q^{-30} -2162 q^{-31} -1892 q^{-32} -1008 q^{-33} +393 q^{-34} +1587 q^{-35} +1567 q^{-36} +988 q^{-37} -138 q^{-38} -1116 q^{-39} -1131 q^{-40} -838 q^{-41} -98 q^{-42} +682 q^{-43} +818 q^{-44} +686 q^{-45} +161 q^{-46} -414 q^{-47} -495 q^{-48} -478 q^{-49} -196 q^{-50} +201 q^{-51} +287 q^{-52} +334 q^{-53} +160 q^{-54} -103 q^{-55} -149 q^{-56} -195 q^{-57} -108 q^{-58} +41 q^{-59} +57 q^{-60} +108 q^{-61} +84 q^{-62} -17 q^{-63} -34 q^{-64} -60 q^{-65} -34 q^{-66} +16 q^{-67} -2 q^{-68} +23 q^{-69} +27 q^{-70} -6 q^{-72} -17 q^{-73} -7 q^{-74} +9 q^{-75} -3 q^{-76} +7 q^{-78} -5 q^{-81} +3 q^{-83} - q^{-84} </math>}}

{{Computer Talk Header}}
{{Computer Talk Header}}


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<td align=left><pre style="color: red; border: 0px; padding: 0em">&lt;&lt; KnotTheory`</pre></td>
<td align=left><pre style="color: red; border: 0px; padding: 0em">&lt;&lt; KnotTheory`</pre></td>
</tr>
</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 colspan=2><pre style="border: 0px; padding: 0em">Loading KnotTheory` (version of August 29, 2005, 15:27:48)...</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[7, 7]]</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>7</nowiki></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>PD[Knot[7, 7]]</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[7, 7]]</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>PD[X[1, 4, 2, 5], X[5, 10, 6, 11], X[3, 9, 4, 8], X[9, 3, 10, 2],
<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[5, 10, 6, 11], X[3, 9, 4, 8], X[9, 3, 10, 2],
X[11, 14, 12, 1], X[7, 13, 8, 12], X[13, 7, 14, 6]]</nowiki></pre></td></tr>
X[11, 14, 12, 1], X[7, 13, 8, 12], X[13, 7, 14, 6]]</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[7, 7]]</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, -2, 7, -6, 3, -4, 2, -5, 6, -7, 5]</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>GaussCode[Knot[7, 7]]</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[7, 7]]</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>GaussCode[-1, 4, -3, 1, -2, 7, -6, 3, -4, 2, -5, 6, -7, 5]</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>DTCode[Knot[7, 7]]</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>DTCode[4, 8, 10, 12, 2, 14, 6]</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 = BR[Knot[7, 7]]</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, -2, 1, -2, 3, -2, 3}]</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, -2, 1, -2, 3, -2, 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[7, 7]][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 5 2
<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>{First[br], Crossings[br]}</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>{4, 7}</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>BraidIndex[Knot[7, 7]]</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</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>Show[DrawMorseLink[Knot[7, 7]]]</nowiki></pre></td></tr><tr><td></td><td align=left>[[Image:7_7_ML.gif]]</td></tr><tr valign=top><td><tt><font color=blue>Out[8]=</font></tt><td><tt><font color=black>-Graphics-</font></tt></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>(#[Knot[7, 7]]&) /@ {SymmetryType, UnknottingNumber, ThreeGenus, BridgeIndex, SuperBridgeIndex, NakanishiIndex}</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>{Reversible, 1, 2, 2, 4, 1}</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>alex = Alexander[Knot[7, 7]][t]</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> -2 5 2
9 + t - - - 5 t + t
9 + t - - - 5 t + t
t</nowiki></pre></td></tr>
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[7, 7]][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 4
<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>Conway[Knot[7, 7]][z]</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> 2 4
1 - z + z</nowiki></pre></td></tr>
1 - z + 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[7, 7], Knot[11, NonAlternating, 28]}</nowiki></pre></td></tr>
<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>Select[AllKnots[], (alex === Alexander[#][t])&]</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[7, 7]], KnotSignature[Knot[7, 7]]}</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>{Knot[7, 7], Knot[11, NonAlternating, 28]}</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>{21, 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[7, 7]][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>{KnotDet[Knot[7, 7]], KnotSignature[Knot[7, 7]]}</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> -3 3 3 2 3 4
<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>{21, 0}</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>Jones[Knot[7, 7]][q]</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> -3 3 3 2 3 4
4 - q + -- - - - 4 q + 3 q - 2 q + q
4 - q + -- - - - 4 q + 3 q - 2 q + q
2 q
2 q
q</nowiki></pre></td></tr>
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[7, 7]}</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>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[15]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{Knot[7, 7]}</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[7, 7]][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> -10 -8 -6 2 2 4 6 10 12 14
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[16]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>A2Invariant[Knot[7, 7]][q]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[16]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> -10 -8 -6 2 2 4 6 10 12 14
-q + q + q + -- + q - q - q - q + q + q
-q + q + q + -- + q - q - q - q + q + q
2
2
q</nowiki></pre></td></tr>
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[7, 7]][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 3
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[17]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>HOMFLYPT[Knot[7, 7]][a, z]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[17]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 2
-4 2 2 2 z 2 2 4
2 + a - -- + 2 z - ---- - a z + z
2 2
a a</nowiki></pre></td></tr>

<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[18]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Kauffman[Knot[7, 7]][a, z]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[18]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 2 2 3
-4 2 2 z 3 z 2 2 z 6 z 2 2 4 z
-4 2 2 z 3 z 2 2 z 6 z 2 2 4 z
2 + a + -- + --- + --- + a z - 7 z - ---- - ---- - 3 a z - ---- -
2 + a + -- + --- + --- + a z - 7 z - ---- - ---- - 3 a z - ---- -
Line 99: Line 162:
2
2
a</nowiki></pre></td></tr>
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[7, 7]], Vassiliev[3][Knot[7, 7]]}</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[19]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>{Vassiliev[2][Knot[7, 7]], Vassiliev[3][Knot[7, 7]]}</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[7, 7]][q, t]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[19]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{-1, -1}</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>3 1 2 1 1 2 3 3 2
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[20]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>Kh[Knot[7, 7]][q, t]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[20]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>3 1 2 1 1 2 3 3 2
- + 2 q + ----- + ----- + ----- + ---- + --- + 2 q t + 2 q t + q t +
- + 2 q + ----- + ----- + ----- + ---- + --- + 2 q t + 2 q t + q t +
q 7 3 5 2 3 2 3 q t
q 7 3 5 2 3 2 3 q t
Line 109: Line 174:
5 2 5 3 7 3 9 4
5 2 5 3 7 3 9 4
2 q t + q t + q t + q t</nowiki></pre></td></tr>
2 q t + q t + q t + q t</nowiki></pre></td></tr>

<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[21]:=</nowiki></pre></td><td><pre style="color: red; border: 0px; padding: 0em"><nowiki>ColouredJones[Knot[7, 7], 2][q]</nowiki></pre></td></tr>
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[21]=&nbsp;&nbsp;</nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> -9 3 8 9 2 16 14 5 2 3
21 + q - -- + -- - -- - -- + -- - -- - - - 15 q - 7 q + 20 q -
8 6 5 4 3 2 q
q q q q q q
4 5 6 7 8 9 10 11 12
11 q - 7 q + 14 q - 5 q - 5 q + 6 q - q - 2 q + q</nowiki></pre></td></tr>

</table>
</table>

See/edit the [[Rolfsen_Splice_Template]].


[[Category:Knot Page]]
[[Category:Knot Page]]

Revision as of 18:05, 29 August 2005

7 6.gif

7_6

8 1.gif

8_1

7 7.gif Visit 7 7's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 7 7's page at Knotilus!

Visit 7 7's page at the original Knot Atlas!

7 7 Quick Notes




Ornamental knot
Mongolian ornament ; sum of two 7.7
Depiction with three loops
Sum of 4.1 and 7.7

Knot presentations

Planar diagram presentation X1425 X5,10,6,11 X3948 X9,3,10,2 X11,14,12,1 X7,13,8,12 X13,7,14,6
Gauss code -1, 4, -3, 1, -2, 7, -6, 3, -4, 2, -5, 6, -7, 5
Dowker-Thistlethwaite code 4 8 10 12 2 14 6
Conway Notation [21112]

Minimum Braid Representative:

BraidPart1.gifBraidPart0.gifBraidPart1.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gif
BraidPart2.gifBraidPart3.gifBraidPart2.gifBraidPart3.gifBraidPart0.gifBraidPart3.gifBraidPart0.gif
BraidPart0.gifBraidPart4.gifBraidPart0.gifBraidPart4.gifBraidPart1.gifBraidPart4.gifBraidPart1.gif
BraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart0.gifBraidPart2.gifBraidPart0.gifBraidPart2.gif

Length is 7, width is 4.

Braid index is 4.

A Morse Link Presentation:

7 7 ML.gif

Three dimensional invariants

Symmetry type Reversible
Unknotting number 1
3-genus 2
Bridge index 2
Super bridge index 4
Nakanishi index 1
Maximal Thurston-Bennequin number Failed to parse (syntax error): {\displaystyle \text{$\$$Failed}}
Hyperbolic Volume 7.64338
A-Polynomial See Data:7 7/A-polynomial

[edit Notes for 7 7's three dimensional invariants]

Four dimensional invariants

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

[edit Notes for 7 7's four dimensional invariants]

Polynomial invariants

Alexander polynomial
Conway polynomial
2nd Alexander ideal (db, data sources)
Determinant and Signature { 21, 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: {K11n28, ...}

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

Vassiliev invariants

V2 and V3: (-1, -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 7 7. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.   
\ r
  \  
j \
-3-2-101234χ
9       11
7      1 -1
5     21 1
3    21  -1
1   22   0
-1  23    1
-3 11     0
-5 2      2
-71       -1
Integral Khovanov Homology

(db, data source)

  

The Coloured Jones Polynomials