T(25,2): Difference between revisions
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<span id="top"></span> |
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{{Knot Navigation Links|prev=T(6,5).jpg|next=T(13,3).jpg}} |
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{{Torus Knot Page| |
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Visit [http://www.math.toronto.edu/~drorbn/KAtlas/TorusKnots/25.2.html T(25,2)'s page] at the original [http://www.math.toronto.edu/~drorbn/KAtlas/index.html Knot Atlas]! |
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m = 25 | |
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n = 2 | |
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===Knot presentations=== |
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braid_table = <table cellspacing=0 cellpadding=0 border=0> |
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{| |
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<tr><td>[[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]][[Image:BraidPart1.gif]]</td></tr> |
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|'''[[Planar Diagrams|Planar diagram presentation]]''' |
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<tr><td>[[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]][[Image:BraidPart2.gif]]</td></tr> |
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|style="padding-left: 1em;" | X<sub>23,49,24,48</sub> X<sub>49,25,50,24</sub> X<sub>25,1,26,50</sub> X<sub>1,27,2,26</sub> X<sub>27,3,28,2</sub> X<sub>3,29,4,28</sub> X<sub>29,5,30,4</sub> X<sub>5,31,6,30</sub> X<sub>31,7,32,6</sub> X<sub>7,33,8,32</sub> X<sub>33,9,34,8</sub> X<sub>9,35,10,34</sub> X<sub>35,11,36,10</sub> X<sub>11,37,12,36</sub> X<sub>37,13,38,12</sub> X<sub>13,39,14,38</sub> X<sub>39,15,40,14</sub> X<sub>15,41,16,40</sub> X<sub>41,17,42,16</sub> X<sub>17,43,18,42</sub> X<sub>43,19,44,18</sub> X<sub>19,45,20,44</sub> X<sub>45,21,46,20</sub> X<sub>21,47,22,46</sub> X<sub>47,23,48,22</sub> |
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|- |
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same_alexander = | |
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|'''[[Gauss Codes|Gauss code]]''' |
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same_jones = | |
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|style="padding-left: 1em;" | {-4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -1, 2, -3, 4, -5, 6, -7, 8, -9, 10, -11, 12, -13, 14, -15, 16, -17, 18, -19, 20, -21, 22, -23, 24, -25, 1, -2, 3} |
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|- |
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|'''[[DT (Dowker-Thistlethwaite) Codes|Dowker-Thistlethwaite code]]''' |
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|style="padding-left: 1em;" | 26 28 30 32 34 36 38 40 42 44 46 48 50 2 4 6 8 10 12 14 16 18 20 22 24 |
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|} |
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===Polynomial invariants=== |
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{{Polynomial Invariants|name=T(25,2)}} |
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===[[Finite Type (Vassiliev) Invariants|Vassiliev invariants]]=== |
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{| style="margin-left: 1em;" |
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|- |
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|'''V<sub>2</sub> and V<sub>3</sub>''' |
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|style="padding-left: 1em;" | {0, 650}) |
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|} |
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[[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>24 is the signature of T(25,2). Nonzero entries off the critical diagonals (if any exist) are highlighted in <font class=HLRed>red</font>. |
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<tr align=center> |
<tr align=center> |
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<td width=6.66667%><table cellpadding=0 cellspacing=0> |
<td width=6.66667%><table cellpadding=0 cellspacing=0> |
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<tr><td>\</td><td> </td><td>r</td></tr> |
<tr><td>\</td><td> </td><td>r</td></tr> |
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<tr><td> </td><td> \ </td><td> </td></tr> |
<tr><td> </td><td> \ </td><td> </td></tr> |
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<tr><td>j</td><td> </td><td>\</td></tr> |
<tr><td>j</td><td> </td><td>\</td></tr> |
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</table></td> |
</table></td> |
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<td width=3.33333%>0</td ><td width=3.33333%>1</td ><td width=3.33333%>2</td ><td width=3.33333%>3</td ><td width=3.33333%>4</td ><td width=3.33333%>5</td ><td width=3.33333%>6</td ><td width=3.33333%>7</td ><td width=3.33333%>8</td ><td width=3.33333%>9</td ><td width=3.33333%>10</td ><td width=3.33333%>11</td ><td width=3.33333%>12</td ><td width=3.33333%>13</td ><td width=3.33333%>14</td ><td width=3.33333%>15</td ><td width=3.33333%>16</td ><td width=3.33333%>17</td ><td width=3.33333%>18</td ><td width=3.33333%>19</td ><td width=3.33333%>20</td ><td width=3.33333%>21</td ><td width=3.33333%>22</td ><td width=3.33333%>23</td ><td width=3.33333%>24</td ><td width=3.33333%>25</td ><td width=6.66667%>χ</td></tr> |
<td width=3.33333%>0</td ><td width=3.33333%>1</td ><td width=3.33333%>2</td ><td width=3.33333%>3</td ><td width=3.33333%>4</td ><td width=3.33333%>5</td ><td width=3.33333%>6</td ><td width=3.33333%>7</td ><td width=3.33333%>8</td ><td width=3.33333%>9</td ><td width=3.33333%>10</td ><td width=3.33333%>11</td ><td width=3.33333%>12</td ><td width=3.33333%>13</td ><td width=3.33333%>14</td ><td width=3.33333%>15</td ><td width=3.33333%>16</td ><td width=3.33333%>17</td ><td width=3.33333%>18</td ><td width=3.33333%>19</td ><td width=3.33333%>20</td ><td width=3.33333%>21</td ><td width=3.33333%>22</td ><td width=3.33333%>23</td ><td width=3.33333%>24</td ><td width=3.33333%>25</td ><td width=6.66667%>χ</td></tr> |
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<tr align=center><td>75</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td bgcolor=yellow>1</td><td>-1</td></tr> |
<tr align=center><td>75</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td bgcolor=yellow>1</td><td>-1</td></tr> |
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<tr align=center><td>73</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td bgcolor=yellow> </td><td bgcolor=yellow> </td><td>0</td></tr> |
<tr align=center><td>73</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td bgcolor=yellow> </td><td bgcolor=yellow> </td><td>0</td></tr> |
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| Line 72: | Line 56: | ||
<tr align=center><td>25</td><td bgcolor=yellow>1</td><td bgcolor=yellow> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>1</td></tr> |
<tr align=center><td>25</td><td bgcolor=yellow>1</td><td bgcolor=yellow> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>1</td></tr> |
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<tr align=center><td>23</td><td bgcolor=yellow>1</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>1</td></tr> |
<tr align=center><td>23</td><td bgcolor=yellow>1</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>1</td></tr> |
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</table> |
</table> | |
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coloured_jones_2 = | |
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coloured_jones_3 = | |
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{{Computer Talk Header}} |
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coloured_jones_4 = | |
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coloured_jones_5 = | |
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coloured_jones_6 = | |
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coloured_jones_7 = | |
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<td><pre style="color: blue; border: 0px; padding: 0em">In[1]:= </pre></td> |
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computer_talk = |
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<td align=left><pre style="color: red; border: 0px; padding: 0em"><< KnotTheory`</pre></td> |
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<table> |
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</tr> |
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<td><pre style="color: blue; border: 0px; padding: 0em">In[1]:= </pre></td> |
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<td align=left><pre style="color: red; border: 0px; padding: 0em"><< KnotTheory`</pre></td> |
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</tr> |
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| ⚫ | |||
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<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[TorusKnot[25, 2]]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[2]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>25</nowiki></pre></td></tr> |
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<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>TubePlot[TorusKnot[25, 2]]</nowiki></pre></td></tr><tr><td></td><td align=left>[[Image:T(25,2).jpg]]</td></tr><tr valign=top><td><tt><font color=blue>Out[3]=</font></tt><td><tt><font color=black>-Graphics-</font></tt></td></tr> |
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X[1, 27, 2, 26], X[27, 3, 28, 2], X[3, 29, 4, 28], X[29, 5, 30, 4], |
X[1, 27, 2, 26], X[27, 3, 28, 2], X[3, 29, 4, 28], X[29, 5, 30, 4], |
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| Line 100: | Line 89: | ||
X[21, 47, 22, 46], X[47, 23, 48, 22]]</nowiki></pre></td></tr> |
X[21, 47, 22, 46], X[47, 23, 48, 22]]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>GaussCode[TorusKnot[25, 2]]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[5]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>GaussCode[-4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, |
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19, -20, 21, -22, 23, -24, 25, -1, 2, -3, 4, -5, 6, -7, 8, -9, 10, |
19, -20, 21, -22, 23, -24, 25, -1, 2, -3, 4, -5, 6, -7, 8, -9, 10, |
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| Line 108: | Line 97: | ||
1, -2, 3]</nowiki></pre></td></tr> |
1, -2, 3]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>BR[TorusKnot[25, 2]]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[6]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>BR[2, {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1}]</nowiki></pre></td></tr> |
1, 1, 1, 1}]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>alex = Alexander[TorusKnot[25, 2]][t]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[7]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 |
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1 + t - t + t - t + t - t + t - t + t - t + |
1 + t - t + t - t + t - t + t - t + t - t + |
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| Line 119: | Line 108: | ||
t - - - t + t - t + t - t + t - t + t - t + t - t + t |
t - - - t + t - t + t - t + t - t + t - t + t - t + t |
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t</nowiki></pre></td></tr> |
t</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>Conway[TorusKnot[25, 2]][z]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[8]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 2 4 6 8 10 12 |
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1 + 78 z + 1001 z + 5005 z + 12870 z + 19448 z + 18564 z + |
1 + 78 z + 1001 z + 5005 z + 12870 z + 19448 z + 18564 z + |
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14 16 18 20 22 24 |
14 16 18 20 22 24 |
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11628 z + 4845 z + 1330 z + 231 z + 23 z + z</nowiki></pre></td></tr> |
11628 z + 4845 z + 1330 z + 231 z + 23 z + z</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>Select[AllKnots[], (alex === Alexander[#][t])&]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[9]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{}</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>{KnotDet[TorusKnot[25, 2]], KnotSignature[TorusKnot[25, 2]]}</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[10]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{25, 24}</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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>J=Jones[TorusKnot[25, 2]][q]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[11]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 12 14 15 16 17 18 19 20 21 22 23 24 |
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q + q - q + q - q + q - q + q - q + q - q + q - |
q + q - q + q - q + q - q + q - q + q - q + q - |
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| Line 138: | Line 127: | ||
36 37 |
36 37 |
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q - q</nowiki></pre></td></tr> |
q - q</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>In[ |
<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[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[ |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[12]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{}</nowiki></pre></td></tr> |
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| ⚫ | |||
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[13]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>NotAvailable</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<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>Kauffman[TorusKnot[25, 2]][a, z]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[14]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>NotAvailable</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<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>{Vassiliev[2][TorusKnot[25, 2]], Vassiliev[3][TorusKnot[25, 2]]}</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[15]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki>{78, 650}</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<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>Kh[TorusKnot[25, 2]][q, t]</nowiki></pre></td></tr> |
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<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki> |
<tr valign=top><td><pre style="color: blue; border: 0px; padding: 0em"><nowiki>Out[16]= </nowiki></pre></td><td><pre style="color: black; border: 0px; padding: 0em"><nowiki> 23 25 27 2 31 3 31 4 35 5 35 6 39 7 |
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| ⚫ | |||
q + q + q t + q t + q t + q t + q t + q t + |
q + q + q t + q t + q t + q t + q t + q t + |
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| Line 159: | Line 147: | ||
67 22 71 23 71 24 75 25 |
67 22 71 23 71 24 75 25 |
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q t + q t + q t + q t</nowiki></pre></td></tr> |
q t + q t + q t + q t</nowiki></pre></td></tr> |
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</table> |
</table> }} |
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Latest revision as of 10:37, 31 August 2005
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See other torus knots |
| Edit T(25,2) Quick Notes
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Edit T(25,2) Further Notes and Views
Knot presentations
| Planar diagram presentation | X23,49,24,48 X49,25,50,24 X25,1,26,50 X1,27,2,26 X27,3,28,2 X3,29,4,28 X29,5,30,4 X5,31,6,30 X31,7,32,6 X7,33,8,32 X33,9,34,8 X9,35,10,34 X35,11,36,10 X11,37,12,36 X37,13,38,12 X13,39,14,38 X39,15,40,14 X15,41,16,40 X41,17,42,16 X17,43,18,42 X43,19,44,18 X19,45,20,44 X45,21,46,20 X21,47,22,46 X47,23,48,22 |
| Gauss code | -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -1, 2, -3, 4, -5, 6, -7, 8, -9, 10, -11, 12, -13, 14, -15, 16, -17, 18, -19, 20, -21, 22, -23, 24, -25, 1, -2, 3 |
| Dowker-Thistlethwaite code | 26 28 30 32 34 36 38 40 42 44 46 48 50 2 4 6 8 10 12 14 16 18 20 22 24 |
| Braid presentation |
Polynomial invariants
| Alexander polynomial | [math]\displaystyle{ t^{12}-t^{11}+t^{10}-t^9+t^8-t^7+t^6-t^5+t^4-t^3+t^2-t+1- t^{-1} + t^{-2} - t^{-3} + t^{-4} - t^{-5} + t^{-6} - t^{-7} + t^{-8} - t^{-9} + t^{-10} - t^{-11} + t^{-12} }[/math] |
| Conway polynomial | [math]\displaystyle{ z^{24}+23 z^{22}+231 z^{20}+1330 z^{18}+4845 z^{16}+11628 z^{14}+18564 z^{12}+19448 z^{10}+12870 z^8+5005 z^6+1001 z^4+78 z^2+1 }[/math] |
| 2nd Alexander ideal (db, data sources) | [math]\displaystyle{ \{1\} }[/math] |
| Determinant and Signature | { 25, 24 } |
| Jones polynomial | [math]\displaystyle{ -q^{37}+q^{36}-q^{35}+q^{34}-q^{33}+q^{32}-q^{31}+q^{30}-q^{29}+q^{28}-q^{27}+q^{26}-q^{25}+q^{24}-q^{23}+q^{22}-q^{21}+q^{20}-q^{19}+q^{18}-q^{17}+q^{16}-q^{15}+q^{14}+q^{12} }[/math] |
| HOMFLY-PT polynomial (db, data sources) | [math]\displaystyle{ z^{24}a^{-24}-24z^{22}a^{-24}-z^{22}a^{-26}+253z^{20}a^{-24}+22z^{20}a^{-26}-1540z^{18}a^{-24}-210z^{18}a^{-26}+5985z^{16}a^{-24}+1140z^{16}a^{-26}-15504z^{14}a^{-24}-3876z^{14}a^{-26}+27132z^{12}a^{-24}+8568z^{12}a^{-26}-31824z^{10}a^{-24}-12376z^{10}a^{-26}+24310z^8a^{-24}+11440z^8a^{-26}-11440z^6a^{-24}-6435z^6a^{-26}+3003z^4a^{-24}+2002z^4a^{-26}-364z^2a^{-24}-286z^2a^{-26}+13a^{-24}+12a^{-26} }[/math] |
| Kauffman polynomial (db, data sources) | [math]\displaystyle{ z^{24}a^{-24}+z^{24}a^{-26}+z^{23}a^{-25}+z^{23}a^{-27}-24z^{22}a^{-24}-23z^{22}a^{-26}+z^{22}a^{-28}-22z^{21}a^{-25}-21z^{21}a^{-27}+z^{21}a^{-29}+253z^{20}a^{-24}+232z^{20}a^{-26}-20z^{20}a^{-28}+z^{20}a^{-30}+210z^{19}a^{-25}+190z^{19}a^{-27}-19z^{19}a^{-29}+z^{19}a^{-31}-1540z^{18}a^{-24}-1350z^{18}a^{-26}+171z^{18}a^{-28}-18z^{18}a^{-30}+z^{18}a^{-32}-1140z^{17}a^{-25}-969z^{17}a^{-27}+153z^{17}a^{-29}-17z^{17}a^{-31}+z^{17}a^{-33}+5985z^{16}a^{-24}+5016z^{16}a^{-26}-816z^{16}a^{-28}+136z^{16}a^{-30}-16z^{16}a^{-32}+z^{16}a^{-34}+3876z^{15}a^{-25}+3060z^{15}a^{-27}-680z^{15}a^{-29}+120z^{15}a^{-31}-15z^{15}a^{-33}+z^{15}a^{-35}-15504z^{14}a^{-24}-12444z^{14}a^{-26}+2380z^{14}a^{-28}-560z^{14}a^{-30}+105z^{14}a^{-32}-14z^{14}a^{-34}+z^{14}a^{-36}-8568z^{13}a^{-25}-6188z^{13}a^{-27}+1820z^{13}a^{-29}-455z^{13}a^{-31}+91z^{13}a^{-33}-13z^{13}a^{-35}+z^{13}a^{-37}+27132z^{12}a^{-24}+20944z^{12}a^{-26}-4368z^{12}a^{-28}+1365z^{12}a^{-30}-364z^{12}a^{-32}+78z^{12}a^{-34}-12z^{12}a^{-36}+z^{12}a^{-38}+12376z^{11}a^{-25}+8008z^{11}a^{-27}-3003z^{11}a^{-29}+1001z^{11}a^{-31}-286z^{11}a^{-33}+66z^{11}a^{-35}-11z^{11}a^{-37}+z^{11}a^{-39}-31824z^{10}a^{-24}-23816z^{10}a^{-26}+5005z^{10}a^{-28}-2002z^{10}a^{-30}+715z^{10}a^{-32}-220z^{10}a^{-34}+55z^{10}a^{-36}-10z^{10}a^{-38}+z^{10}a^{-40}-11440z^9a^{-25}-6435z^9a^{-27}+3003z^9a^{-29}-1287z^9a^{-31}+495z^9a^{-33}-165z^9a^{-35}+45z^9a^{-37}-9z^9a^{-39}+z^9a^{-41}+24310z^8a^{-24}+17875z^8a^{-26}-3432z^8a^{-28}+1716z^8a^{-30}-792z^8a^{-32}+330z^8a^{-34}-120z^8a^{-36}+36z^8a^{-38}-8z^8a^{-40}+z^8a^{-42}+6435z^7a^{-25}+3003z^7a^{-27}-1716z^7a^{-29}+924z^7a^{-31}-462z^7a^{-33}+210z^7a^{-35}-84z^7a^{-37}+28z^7a^{-39}-7z^7a^{-41}+z^7a^{-43}-11440z^6a^{-24}-8437z^6a^{-26}+1287z^6a^{-28}-792z^6a^{-30}+462z^6a^{-32}-252z^6a^{-34}+126z^6a^{-36}-56z^6a^{-38}+21z^6a^{-40}-6z^6a^{-42}+z^6a^{-44}-2002z^5a^{-25}-715z^5a^{-27}+495z^5a^{-29}-330z^5a^{-31}+210z^5a^{-33}-126z^5a^{-35}+70z^5a^{-37}-35z^5a^{-39}+15z^5a^{-41}-5z^5a^{-43}+z^5a^{-45}+3003z^4a^{-24}+2288z^4a^{-26}-220z^4a^{-28}+165z^4a^{-30}-120z^4a^{-32}+84z^4a^{-34}-56z^4a^{-36}+35z^4a^{-38}-20z^4a^{-40}+10z^4a^{-42}-4z^4a^{-44}+z^4a^{-46}+286z^3a^{-25}+66z^3a^{-27}-55z^3a^{-29}+45z^3a^{-31}-36z^3a^{-33}+28z^3a^{-35}-21z^3a^{-37}+15z^3a^{-39}-10z^3a^{-41}+6z^3a^{-43}-3z^3a^{-45}+z^3a^{-47}-364z^2a^{-24}-298z^2a^{-26}+11z^2a^{-28}-10z^2a^{-30}+9z^2a^{-32}-8z^2a^{-34}+7z^2a^{-36}-6z^2a^{-38}+5z^2a^{-40}-4z^2a^{-42}+3z^2a^{-44}-2z^2a^{-46}+z^2a^{-48}-12za^{-25}-za^{-27}+za^{-29}-za^{-31}+za^{-33}-za^{-35}+za^{-37}-za^{-39}+za^{-41}-za^{-43}+za^{-45}-za^{-47}+za^{-49}+13a^{-24}+12a^{-26} }[/math] |
| The A2 invariant | Data:T(25,2)/QuantumInvariant/A2/1,0 |
| The G2 invariant | Data:T(25,2)/QuantumInvariant/G2/1,0 |
KnotTheory`, as shown in the (simulated) Mathematica session below. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting. This Mathematica session is also available (albeit only for the knot 5_2) as the notebook PolynomialInvariantsSession.nb.
(The path below may be different on your system, and possibly also the KnotTheory` date)
In[1]:=
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AppendTo[$Path, "C:/drorbn/projects/KAtlas/"];
<< KnotTheory`
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Loading KnotTheory` version of August 31, 2006, 11:25:27.5625.
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In[3]:=
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K = Knot["T(25,2)"];
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In[4]:=
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Alexander[K][t]
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KnotTheory::loading: Loading precomputed data in PD4Knots`.
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Out[4]=
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[math]\displaystyle{ t^{12}-t^{11}+t^{10}-t^9+t^8-t^7+t^6-t^5+t^4-t^3+t^2-t+1- t^{-1} + t^{-2} - t^{-3} + t^{-4} - t^{-5} + t^{-6} - t^{-7} + t^{-8} - t^{-9} + t^{-10} - t^{-11} + t^{-12} }[/math] |
In[5]:=
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Conway[K][z]
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Out[5]=
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[math]\displaystyle{ z^{24}+23 z^{22}+231 z^{20}+1330 z^{18}+4845 z^{16}+11628 z^{14}+18564 z^{12}+19448 z^{10}+12870 z^8+5005 z^6+1001 z^4+78 z^2+1 }[/math] |
In[6]:=
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Alexander[K, 2][t]
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KnotTheory::credits: The program Alexander[K, r] to compute Alexander ideals was written by Jana Archibald at the University of Toronto in the summer of 2005.
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Out[6]=
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[math]\displaystyle{ \{1\} }[/math] |
In[7]:=
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{KnotDet[K], KnotSignature[K]}
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Out[7]=
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{ 25, 24 } |
In[8]:=
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Jones[K][q]
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[8]=
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[math]\displaystyle{ -q^{37}+q^{36}-q^{35}+q^{34}-q^{33}+q^{32}-q^{31}+q^{30}-q^{29}+q^{28}-q^{27}+q^{26}-q^{25}+q^{24}-q^{23}+q^{22}-q^{21}+q^{20}-q^{19}+q^{18}-q^{17}+q^{16}-q^{15}+q^{14}+q^{12} }[/math] |
In[9]:=
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HOMFLYPT[K][a, z]
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KnotTheory::credits: The HOMFLYPT program was written by Scott Morrison.
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Out[9]=
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[math]\displaystyle{ z^{24}a^{-24}-24z^{22}a^{-24}-z^{22}a^{-26}+253z^{20}a^{-24}+22z^{20}a^{-26}-1540z^{18}a^{-24}-210z^{18}a^{-26}+5985z^{16}a^{-24}+1140z^{16}a^{-26}-15504z^{14}a^{-24}-3876z^{14}a^{-26}+27132z^{12}a^{-24}+8568z^{12}a^{-26}-31824z^{10}a^{-24}-12376z^{10}a^{-26}+24310z^8a^{-24}+11440z^8a^{-26}-11440z^6a^{-24}-6435z^6a^{-26}+3003z^4a^{-24}+2002z^4a^{-26}-364z^2a^{-24}-286z^2a^{-26}+13a^{-24}+12a^{-26} }[/math] |
In[10]:=
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Kauffman[K][a, z]
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KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.
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Out[10]=
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[math]\displaystyle{ z^{24}a^{-24}+z^{24}a^{-26}+z^{23}a^{-25}+z^{23}a^{-27}-24z^{22}a^{-24}-23z^{22}a^{-26}+z^{22}a^{-28}-22z^{21}a^{-25}-21z^{21}a^{-27}+z^{21}a^{-29}+253z^{20}a^{-24}+232z^{20}a^{-26}-20z^{20}a^{-28}+z^{20}a^{-30}+210z^{19}a^{-25}+190z^{19}a^{-27}-19z^{19}a^{-29}+z^{19}a^{-31}-1540z^{18}a^{-24}-1350z^{18}a^{-26}+171z^{18}a^{-28}-18z^{18}a^{-30}+z^{18}a^{-32}-1140z^{17}a^{-25}-969z^{17}a^{-27}+153z^{17}a^{-29}-17z^{17}a^{-31}+z^{17}a^{-33}+5985z^{16}a^{-24}+5016z^{16}a^{-26}-816z^{16}a^{-28}+136z^{16}a^{-30}-16z^{16}a^{-32}+z^{16}a^{-34}+3876z^{15}a^{-25}+3060z^{15}a^{-27}-680z^{15}a^{-29}+120z^{15}a^{-31}-15z^{15}a^{-33}+z^{15}a^{-35}-15504z^{14}a^{-24}-12444z^{14}a^{-26}+2380z^{14}a^{-28}-560z^{14}a^{-30}+105z^{14}a^{-32}-14z^{14}a^{-34}+z^{14}a^{-36}-8568z^{13}a^{-25}-6188z^{13}a^{-27}+1820z^{13}a^{-29}-455z^{13}a^{-31}+91z^{13}a^{-33}-13z^{13}a^{-35}+z^{13}a^{-37}+27132z^{12}a^{-24}+20944z^{12}a^{-26}-4368z^{12}a^{-28}+1365z^{12}a^{-30}-364z^{12}a^{-32}+78z^{12}a^{-34}-12z^{12}a^{-36}+z^{12}a^{-38}+12376z^{11}a^{-25}+8008z^{11}a^{-27}-3003z^{11}a^{-29}+1001z^{11}a^{-31}-286z^{11}a^{-33}+66z^{11}a^{-35}-11z^{11}a^{-37}+z^{11}a^{-39}-31824z^{10}a^{-24}-23816z^{10}a^{-26}+5005z^{10}a^{-28}-2002z^{10}a^{-30}+715z^{10}a^{-32}-220z^{10}a^{-34}+55z^{10}a^{-36}-10z^{10}a^{-38}+z^{10}a^{-40}-11440z^9a^{-25}-6435z^9a^{-27}+3003z^9a^{-29}-1287z^9a^{-31}+495z^9a^{-33}-165z^9a^{-35}+45z^9a^{-37}-9z^9a^{-39}+z^9a^{-41}+24310z^8a^{-24}+17875z^8a^{-26}-3432z^8a^{-28}+1716z^8a^{-30}-792z^8a^{-32}+330z^8a^{-34}-120z^8a^{-36}+36z^8a^{-38}-8z^8a^{-40}+z^8a^{-42}+6435z^7a^{-25}+3003z^7a^{-27}-1716z^7a^{-29}+924z^7a^{-31}-462z^7a^{-33}+210z^7a^{-35}-84z^7a^{-37}+28z^7a^{-39}-7z^7a^{-41}+z^7a^{-43}-11440z^6a^{-24}-8437z^6a^{-26}+1287z^6a^{-28}-792z^6a^{-30}+462z^6a^{-32}-252z^6a^{-34}+126z^6a^{-36}-56z^6a^{-38}+21z^6a^{-40}-6z^6a^{-42}+z^6a^{-44}-2002z^5a^{-25}-715z^5a^{-27}+495z^5a^{-29}-330z^5a^{-31}+210z^5a^{-33}-126z^5a^{-35}+70z^5a^{-37}-35z^5a^{-39}+15z^5a^{-41}-5z^5a^{-43}+z^5a^{-45}+3003z^4a^{-24}+2288z^4a^{-26}-220z^4a^{-28}+165z^4a^{-30}-120z^4a^{-32}+84z^4a^{-34}-56z^4a^{-36}+35z^4a^{-38}-20z^4a^{-40}+10z^4a^{-42}-4z^4a^{-44}+z^4a^{-46}+286z^3a^{-25}+66z^3a^{-27}-55z^3a^{-29}+45z^3a^{-31}-36z^3a^{-33}+28z^3a^{-35}-21z^3a^{-37}+15z^3a^{-39}-10z^3a^{-41}+6z^3a^{-43}-3z^3a^{-45}+z^3a^{-47}-364z^2a^{-24}-298z^2a^{-26}+11z^2a^{-28}-10z^2a^{-30}+9z^2a^{-32}-8z^2a^{-34}+7z^2a^{-36}-6z^2a^{-38}+5z^2a^{-40}-4z^2a^{-42}+3z^2a^{-44}-2z^2a^{-46}+z^2a^{-48}-12za^{-25}-za^{-27}+za^{-29}-za^{-31}+za^{-33}-za^{-35}+za^{-37}-za^{-39}+za^{-41}-za^{-43}+za^{-45}-za^{-47}+za^{-49}+13a^{-24}+12a^{-26} }[/math] |
"Similar" Knots (within the Atlas)
Same Alexander/Conway Polynomial: {}
Same Jones Polynomial (up to mirroring, [math]\displaystyle{ q\leftrightarrow q^{-1} }[/math]): {}
KnotTheory`. Your input (in red) is realistic; all else should have the same content as in a real mathematica session, but with different formatting.
(The path below may be different on your system, and possibly also the KnotTheory` date)
In[1]:=
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AppendTo[$Path, "C:/drorbn/projects/KAtlas/"];
<< KnotTheory`
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Loading KnotTheory` version of May 31, 2006, 14:15:20.091.
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In[3]:=
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K = Knot["T(25,2)"];
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In[4]:=
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{A = Alexander[K][t], J = Jones[K][q]}
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KnotTheory::loading: Loading precomputed data in PD4Knots`.
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KnotTheory::loading: Loading precomputed data in Jones4Knots`.
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Out[4]=
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{ [math]\displaystyle{ t^{12}-t^{11}+t^{10}-t^9+t^8-t^7+t^6-t^5+t^4-t^3+t^2-t+1- t^{-1} + t^{-2} - t^{-3} + t^{-4} - t^{-5} + t^{-6} - t^{-7} + t^{-8} - t^{-9} + t^{-10} - t^{-11} + t^{-12} }[/math], [math]\displaystyle{ -q^{37}+q^{36}-q^{35}+q^{34}-q^{33}+q^{32}-q^{31}+q^{30}-q^{29}+q^{28}-q^{27}+q^{26}-q^{25}+q^{24}-q^{23}+q^{22}-q^{21}+q^{20}-q^{19}+q^{18}-q^{17}+q^{16}-q^{15}+q^{14}+q^{12} }[/math] } |
In[5]:=
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DeleteCases[Select[AllKnots[], (A === Alexander[#][t]) &], K]
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KnotTheory::loading: Loading precomputed data in DTCode4KnotsTo11`.
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KnotTheory::credits: The GaussCode to PD conversion was written by Siddarth Sankaran at the University of Toronto in the summer of 2005.
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Out[5]=
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{} |
In[6]:=
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DeleteCases[
Select[
AllKnots[],
(J === Jones[#][q] || (J /. q -> 1/q) === Jones[#][q]) &
],
K
]
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KnotTheory::loading: Loading precomputed data in Jones4Knots11`.
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Out[6]=
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{} |
Vassiliev invariants
| V2 and V3: | (78, 650) |
| V2,1 through V6,9: |
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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 [math]\displaystyle{ t^rq^j }[/math] are shown, along with their alternating sums [math]\displaystyle{ \chi }[/math] (fixed [math]\displaystyle{ j }[/math], alternation over [math]\displaystyle{ r }[/math]). The squares with yellow highlighting are those on the "critical diagonals", where [math]\displaystyle{ j-2r=s+1 }[/math] or [math]\displaystyle{ j-2r=s-1 }[/math], where [math]\displaystyle{ s= }[/math]24 is the signature of T(25,2). Nonzero entries off the critical diagonals (if any exist) are highlighted in red. |
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| Integral Khovanov Homology
(db, data source) |
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Computer Talk
Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session.
Modifying This Page
| Read me first: Modifying Knot Pages
See/edit the Torus Knot Page master template (intermediate). See/edit the Torus Knot_Splice_Base (expert). Back to the top. |
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