10 30: Difference between revisions
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{{Vassiliev Invariants}} |
{{Vassiliev Invariants}} |
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{{Khovanov Homology|table=<table border=1> |
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The coefficients of the monomials <math>t^rq^j</math> are shown, along with their alternating sums <math>\chi</math> (fixed <math>j</math>, alternation over <math>r</math>). The squares with <font class=HLYellow>yellow</font> highlighting are those on the "critical diagonals", where <math>j-2r=s+1</math> or <math>j-2r=s+1</math>, where <math>s=</math>{{Data:{{PAGENAME}}/Signature}} is the signature of {{PAGENAME}}. Nonzero entries off the critical diagonals (if any exist) are highlighted in <font class=HLRed>red</font>. |
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<tr align=center><td>-17</td><td bgcolor=yellow> </td><td bgcolor=yellow>2</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>-2</td></tr> |
<tr align=center><td>-17</td><td bgcolor=yellow> </td><td bgcolor=yellow>2</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td><td>-2</td></tr> |
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<tr align=center><td>-19</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>1</td></tr> |
<tr align=center><td>-19</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>1</td></tr> |
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2 q t + q t</nowiki></pre></td></tr> |
2 q t + q t</nowiki></pre></td></tr> |
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[[Category:Knot Page]] |
Revision as of 20:08, 28 August 2005
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![]() |
Visit 10 30's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)
Visit 10 30's page at Knotilus! Visit 10 30's page at the original Knot Atlas! |
Knot presentations
Planar diagram presentation | X1425 X5,12,6,13 X3,11,4,10 X11,3,12,2 X9,18,10,19 X13,20,14,1 X19,14,20,15 X17,6,18,7 X7,16,8,17 X15,8,16,9 |
Gauss code | -1, 4, -3, 1, -2, 8, -9, 10, -5, 3, -4, 2, -6, 7, -10, 9, -8, 5, -7, 6 |
Dowker-Thistlethwaite code | 4 10 12 16 18 2 20 8 6 14 |
Conway Notation | [312112] |
Three dimensional invariants
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Four dimensional invariants
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Polynomial invariants
Alexander polynomial | 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 -4 t^2+17 t-25+17 t^{-1} -4 t^{-2} } |
Conway polynomial | 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 -4 z^4+z^2+1} |
2nd Alexander ideal (db, data sources) | 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 \{1\}} |
Determinant and Signature | { 67, -2 } |
Jones polynomial | 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 q-3+6 q^{-1} -8 q^{-2} +11 q^{-3} -11 q^{-4} +10 q^{-5} -8 q^{-6} +5 q^{-7} -3 q^{-8} + q^{-9} } |
HOMFLY-PT polynomial (db, data sources) | 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 z^2 a^8-z^4 a^6-2 z^4 a^4-2 z^2 a^4-a^4-z^4 a^2+z^2 a^2+2 a^2+z^2} |
Kauffman polynomial (db, data sources) | 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 z^6 a^{10}-3 z^4 a^{10}+2 z^2 a^{10}+3 z^7 a^9-10 z^5 a^9+9 z^3 a^9-2 z a^9+3 z^8 a^8-7 z^6 a^8+2 z^4 a^8+z^2 a^8+z^9 a^7+5 z^7 a^7-20 z^5 a^7+18 z^3 a^7-6 z a^7+6 z^8 a^6-11 z^6 a^6+2 z^4 a^6+2 z^2 a^6+z^9 a^5+7 z^7 a^5-19 z^5 a^5+16 z^3 a^5-5 z a^5+3 z^8 a^4+2 z^6 a^4-11 z^4 a^4+9 z^2 a^4-a^4+5 z^7 a^3-6 z^5 a^3+4 z^3 a^3-z a^3+5 z^6 a^2-7 z^4 a^2+5 z^2 a^2-2 a^2+3 z^5 a-3 z^3 a+z^4-z^2} |
The A2 invariant | 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 q^{28}-q^{26}-q^{24}+2 q^{22}-2 q^{20}+q^{16}-2 q^{14}+q^{12}-q^{10}+2 q^8+2 q^6-q^4+3 q^2-1- q^{-2} + q^{-4} } |
The G2 invariant | 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 q^{142}-2 q^{140}+5 q^{138}-9 q^{136}+9 q^{134}-8 q^{132}-2 q^{130}+19 q^{128}-34 q^{126}+46 q^{124}-44 q^{122}+22 q^{120}+15 q^{118}-59 q^{116}+92 q^{114}-96 q^{112}+69 q^{110}-15 q^{108}-49 q^{106}+97 q^{104}-111 q^{102}+89 q^{100}-34 q^{98}-27 q^{96}+70 q^{94}-78 q^{92}+50 q^{90}-49 q^{86}+76 q^{84}-65 q^{82}+16 q^{80}+46 q^{78}-104 q^{76}+131 q^{74}-110 q^{72}+46 q^{70}+34 q^{68}-114 q^{66}+154 q^{64}-147 q^{62}+89 q^{60}-9 q^{58}-66 q^{56}+108 q^{54}-105 q^{52}+64 q^{50}-4 q^{48}-43 q^{46}+60 q^{44}-43 q^{42}+3 q^{40}+48 q^{38}-72 q^{36}+73 q^{34}-39 q^{32}-9 q^{30}+56 q^{28}-87 q^{26}+92 q^{24}-69 q^{22}+33 q^{20}+12 q^{18}-48 q^{16}+66 q^{14}-64 q^{12}+49 q^{10}-24 q^8-q^6+18 q^4-29 q^2+28-19 q^{-2} +12 q^{-4} -2 q^{-6} -3 q^{-8} +5 q^{-10} -6 q^{-12} +4 q^{-14} -2 q^{-16} + q^{-18} } |
A1 Invariants.
Weight | Invariant |
---|---|
1 | 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 q^{19}-2 q^{17}+2 q^{15}-3 q^{13}+2 q^{11}-q^9+3 q^5-2 q^3+3 q-2 q^{-1} + q^{-3} } |
2 | 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 q^{54}-2 q^{52}-2 q^{50}+7 q^{48}-2 q^{46}-10 q^{44}+12 q^{42}+4 q^{40}-18 q^{38}+11 q^{36}+11 q^{34}-20 q^{32}+3 q^{30}+14 q^{28}-12 q^{26}-5 q^{24}+10 q^{22}+3 q^{20}-11 q^{18}-2 q^{16}+18 q^{14}-10 q^{12}-11 q^{10}+21 q^8-5 q^6-12 q^4+14 q^2-2-7 q^{-2} +6 q^{-4} -2 q^{-8} + q^{-10} } |
3 | 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 q^{105}-2 q^{103}-2 q^{101}+3 q^{99}+7 q^{97}-2 q^{95}-16 q^{93}-2 q^{91}+24 q^{89}+14 q^{87}-30 q^{85}-32 q^{83}+29 q^{81}+53 q^{79}-20 q^{77}-69 q^{75}-2 q^{73}+80 q^{71}+24 q^{69}-79 q^{67}-46 q^{65}+71 q^{63}+67 q^{61}-56 q^{59}-78 q^{57}+38 q^{55}+85 q^{53}-21 q^{51}-83 q^{49}-2 q^{47}+75 q^{45}+19 q^{43}-59 q^{41}-44 q^{39}+40 q^{37}+59 q^{35}-7 q^{33}-74 q^{31}-22 q^{29}+78 q^{27}+47 q^{25}-70 q^{23}-66 q^{21}+58 q^{19}+72 q^{17}-39 q^{15}-67 q^{13}+27 q^{11}+54 q^9-14 q^7-41 q^5+10 q^3+27 q-5 q^{-1} -18 q^{-3} +4 q^{-5} +12 q^{-7} -3 q^{-9} -6 q^{-11} + q^{-13} +3 q^{-15} -2 q^{-19} + q^{-21} } |
4 | 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 q^{172}-2 q^{170}-2 q^{168}+3 q^{166}+3 q^{164}+7 q^{162}-9 q^{160}-16 q^{158}-q^{156}+10 q^{154}+42 q^{152}+q^{150}-47 q^{148}-45 q^{146}-16 q^{144}+102 q^{142}+77 q^{140}-29 q^{138}-121 q^{136}-144 q^{134}+95 q^{132}+196 q^{130}+121 q^{128}-103 q^{126}-321 q^{124}-79 q^{122}+191 q^{120}+333 q^{118}+111 q^{116}-357 q^{114}-321 q^{112}-28 q^{110}+396 q^{108}+392 q^{106}-167 q^{104}-425 q^{102}-318 q^{100}+254 q^{98}+536 q^{96}+95 q^{94}-346 q^{92}-478 q^{90}+51 q^{88}+503 q^{86}+268 q^{84}-204 q^{82}-489 q^{80}-96 q^{78}+381 q^{76}+340 q^{74}-67 q^{72}-415 q^{70}-216 q^{68}+203 q^{66}+374 q^{64}+107 q^{62}-262 q^{60}-339 q^{58}-70 q^{56}+333 q^{54}+326 q^{52}+17 q^{50}-387 q^{48}-389 q^{46}+151 q^{44}+440 q^{42}+332 q^{40}-252 q^{38}-557 q^{36}-108 q^{34}+332 q^{32}+486 q^{30}-20 q^{28}-461 q^{26}-234 q^{24}+107 q^{22}+389 q^{20}+112 q^{18}-237 q^{16}-172 q^{14}-34 q^{12}+197 q^{10}+93 q^8-85 q^6-58 q^4-49 q^2+74+36 q^{-2} -33 q^{-4} -4 q^{-6} -23 q^{-8} +28 q^{-10} +7 q^{-12} -17 q^{-14} +5 q^{-16} -8 q^{-18} +11 q^{-20} +2 q^{-22} -7 q^{-24} +2 q^{-26} -2 q^{-28} +3 q^{-30} -2 q^{-34} + q^{-36} } |
5 |
A2 Invariants.
Weight | Invariant |
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1,0 | 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 q^{28}-q^{26}-q^{24}+2 q^{22}-2 q^{20}+q^{16}-2 q^{14}+q^{12}-q^{10}+2 q^8+2 q^6-q^4+3 q^2-1- q^{-2} + q^{-4} } |
1,1 | 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 q^{76}-4 q^{74}+12 q^{72}-30 q^{70}+60 q^{68}-106 q^{66}+168 q^{64}-244 q^{62}+324 q^{60}-390 q^{58}+438 q^{56}-448 q^{54}+407 q^{52}-316 q^{50}+178 q^{48}-4 q^{46}-196 q^{44}+398 q^{42}-578 q^{40}+720 q^{38}-811 q^{36}+834 q^{34}-792 q^{32}+686 q^{30}-534 q^{28}+354 q^{26}-166 q^{24}-8 q^{22}+155 q^{20}-268 q^{18}+336 q^{16}-362 q^{14}+366 q^{12}-338 q^{10}+298 q^8-242 q^6+191 q^4-142 q^2+98-62 q^{-2} +38 q^{-4} -20 q^{-6} +10 q^{-8} -4 q^{-10} + q^{-12} } |
2,0 | 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 q^{72}-q^{70}-2 q^{68}+4 q^{64}+2 q^{62}-7 q^{60}-2 q^{58}+8 q^{56}+5 q^{54}-9 q^{52}-6 q^{50}+11 q^{48}+7 q^{46}-12 q^{44}-8 q^{42}+9 q^{40}+4 q^{38}-8 q^{36}-3 q^{34}+7 q^{32}+q^{30}-3 q^{28}+3 q^{26}-4 q^{24}-7 q^{22}+9 q^{20}+6 q^{18}-10 q^{16}-4 q^{14}+15 q^{12}+7 q^{10}-13 q^8-4 q^6+13 q^4+2 q^2-9- q^{-2} +5 q^{-4} +2 q^{-6} -2 q^{-8} - q^{-10} + q^{-12} } |
A3 Invariants.
Weight | Invariant |
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0,1,0 | 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 q^{60}-2 q^{58}+q^{56}+2 q^{54}-7 q^{52}+5 q^{50}+3 q^{48}-11 q^{46}+10 q^{44}+6 q^{42}-14 q^{40}+11 q^{38}+8 q^{36}-16 q^{34}+2 q^{32}+5 q^{30}-9 q^{28}-5 q^{26}+3 q^{24}+7 q^{22}-7 q^{20}-2 q^{18}+17 q^{16}-9 q^{14}-7 q^{12}+18 q^{10}-5 q^8-9 q^6+13 q^4-q^2-6+5 q^{-2} -2 q^{-6} + q^{-8} } |
1,0,0 | 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 q^{37}-q^{35}-q^{31}+2 q^{29}-2 q^{27}+q^{25}-q^{23}+q^{21}-2 q^{19}-q^{13}+2 q^{11}+q^9+3 q^7-q^5+3 q^3-q- q^{-3} + q^{-5} } |
B2 Invariants.
Weight | Invariant |
---|---|
0,1 | 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 q^{60}-2 q^{58}+5 q^{56}-8 q^{54}+11 q^{52}-15 q^{50}+17 q^{48}-19 q^{46}+18 q^{44}-16 q^{42}+10 q^{40}-3 q^{38}-6 q^{36}+16 q^{34}-24 q^{32}+31 q^{30}-35 q^{28}+37 q^{26}-35 q^{24}+29 q^{22}-21 q^{20}+12 q^{18}-3 q^{16}-5 q^{14}+13 q^{12}-16 q^{10}+19 q^8-17 q^6+17 q^4-13 q^2+10-7 q^{-2} +4 q^{-4} -2 q^{-6} + q^{-8} } |
1,0 | 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 q^{98}-2 q^{94}-2 q^{92}+3 q^{90}+5 q^{88}-3 q^{86}-9 q^{84}-2 q^{82}+12 q^{80}+9 q^{78}-10 q^{76}-16 q^{74}+3 q^{72}+20 q^{70}+9 q^{68}-16 q^{66}-16 q^{64}+8 q^{62}+20 q^{60}+2 q^{58}-17 q^{56}-8 q^{54}+10 q^{52}+8 q^{50}-9 q^{48}-11 q^{46}+5 q^{44}+10 q^{42}-5 q^{40}-13 q^{38}+2 q^{36}+15 q^{34}+3 q^{32}-14 q^{30}-7 q^{28}+15 q^{26}+14 q^{24}-8 q^{22}-18 q^{20}+q^{18}+19 q^{16}+10 q^{14}-12 q^{12}-15 q^{10}+2 q^8+15 q^6+6 q^4-7 q^2-8+ q^{-2} +6 q^{-4} +2 q^{-6} -2 q^{-8} -2 q^{-10} + q^{-14} } |
G2 Invariants.
Weight | Invariant |
---|---|
1,0 | 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 q^{142}-2 q^{140}+5 q^{138}-9 q^{136}+9 q^{134}-8 q^{132}-2 q^{130}+19 q^{128}-34 q^{126}+46 q^{124}-44 q^{122}+22 q^{120}+15 q^{118}-59 q^{116}+92 q^{114}-96 q^{112}+69 q^{110}-15 q^{108}-49 q^{106}+97 q^{104}-111 q^{102}+89 q^{100}-34 q^{98}-27 q^{96}+70 q^{94}-78 q^{92}+50 q^{90}-49 q^{86}+76 q^{84}-65 q^{82}+16 q^{80}+46 q^{78}-104 q^{76}+131 q^{74}-110 q^{72}+46 q^{70}+34 q^{68}-114 q^{66}+154 q^{64}-147 q^{62}+89 q^{60}-9 q^{58}-66 q^{56}+108 q^{54}-105 q^{52}+64 q^{50}-4 q^{48}-43 q^{46}+60 q^{44}-43 q^{42}+3 q^{40}+48 q^{38}-72 q^{36}+73 q^{34}-39 q^{32}-9 q^{30}+56 q^{28}-87 q^{26}+92 q^{24}-69 q^{22}+33 q^{20}+12 q^{18}-48 q^{16}+66 q^{14}-64 q^{12}+49 q^{10}-24 q^8-q^6+18 q^4-29 q^2+28-19 q^{-2} +12 q^{-4} -2 q^{-6} -3 q^{-8} +5 q^{-10} -6 q^{-12} +4 q^{-14} -2 q^{-16} + q^{-18} } |
.
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["10 30"];
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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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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 -4 t^2+17 t-25+17 t^{-1} -4 t^{-2} } |
In[5]:=
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Conway[K][z]
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Out[5]=
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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 -4 z^4+z^2+1} |
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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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 \{1\}} |
In[7]:=
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{KnotDet[K], KnotSignature[K]}
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Out[7]=
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{ 67, -2 } |
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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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 q-3+6 q^{-1} -8 q^{-2} +11 q^{-3} -11 q^{-4} +10 q^{-5} -8 q^{-6} +5 q^{-7} -3 q^{-8} + q^{-9} } |
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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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 z^2 a^8-z^4 a^6-2 z^4 a^4-2 z^2 a^4-a^4-z^4 a^2+z^2 a^2+2 a^2+z^2} |
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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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 z^6 a^{10}-3 z^4 a^{10}+2 z^2 a^{10}+3 z^7 a^9-10 z^5 a^9+9 z^3 a^9-2 z a^9+3 z^8 a^8-7 z^6 a^8+2 z^4 a^8+z^2 a^8+z^9 a^7+5 z^7 a^7-20 z^5 a^7+18 z^3 a^7-6 z a^7+6 z^8 a^6-11 z^6 a^6+2 z^4 a^6+2 z^2 a^6+z^9 a^5+7 z^7 a^5-19 z^5 a^5+16 z^3 a^5-5 z a^5+3 z^8 a^4+2 z^6 a^4-11 z^4 a^4+9 z^2 a^4-a^4+5 z^7 a^3-6 z^5 a^3+4 z^3 a^3-z a^3+5 z^6 a^2-7 z^4 a^2+5 z^2 a^2-2 a^2+3 z^5 a-3 z^3 a+z^4-z^2} |
Vassiliev invariants
V2 and V3: | (1, -1) |
V2,1 through 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 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 t^rq^j} are shown, along with their alternating sums 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 \chi} (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 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 r} ). The squares with yellow highlighting are those on the "critical diagonals", where 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-2r=s+1} or 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-2r=s-1} , where 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 s=} -2 is the signature of 10 30. 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.
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In[1]:= |
<< KnotTheory` |
Loading KnotTheory` (version of August 17, 2005, 14:44:34)... | |
In[2]:= | Crossings[Knot[10, 30]] |
Out[2]= | 10 |
In[3]:= | PD[Knot[10, 30]] |
Out[3]= | PD[X[1, 4, 2, 5], X[5, 12, 6, 13], X[3, 11, 4, 10], X[11, 3, 12, 2],X[9, 18, 10, 19], X[13, 20, 14, 1], X[19, 14, 20, 15],X[17, 6, 18, 7], X[7, 16, 8, 17], X[15, 8, 16, 9]] |
In[4]:= | GaussCode[Knot[10, 30]] |
Out[4]= | GaussCode[-1, 4, -3, 1, -2, 8, -9, 10, -5, 3, -4, 2, -6, 7, -10, 9, -8, 5, -7, 6] |
In[5]:= | BR[Knot[10, 30]] |
Out[5]= | BR[5, {-1, -1, -2, 1, -2, -2, -3, 2, -3, 4, -3, 4}] |
In[6]:= | alex = Alexander[Knot[10, 30]][t] |
Out[6]= | 4 17 2 |
In[7]:= | Conway[Knot[10, 30]][z] |
Out[7]= | 2 4 1 + z - 4 z |
In[8]:= | Select[AllKnots[], (alex === Alexander[#][t])&] |
Out[8]= | {Knot[10, 30], Knot[11, Alternating, 154]} |
In[9]:= | {KnotDet[Knot[10, 30]], KnotSignature[Knot[10, 30]]} |
Out[9]= | {67, -2} |
In[10]:= | J=Jones[Knot[10, 30]][q] |
Out[10]= | -9 3 5 8 10 11 11 8 6 |
In[11]:= | Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&] |
Out[11]= | {Knot[10, 30]} |
In[12]:= | A2Invariant[Knot[10, 30]][q] |
Out[12]= | -28 -26 -24 2 2 -16 2 -12 -10 2 |
In[13]:= | Kauffman[Knot[10, 30]][a, z] |
Out[13]= | 2 4 3 5 7 9 2 2 2 4 2 |
In[14]:= | {Vassiliev[2][Knot[10, 30]], Vassiliev[3][Knot[10, 30]]} |
Out[14]= | {0, -1} |
In[15]:= | Kh[Knot[10, 30]][q, t] |
Out[15]= | 3 4 1 2 1 3 2 5 3 |