10 38

10_37

10_39

Visit 10 38's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit 10 38's page at Knotilus!

Visit 10 38's page at the original Knot Atlas!

10 38 Quick Notes

10 38 Further Notes and Views

Knot presentations

Planar diagram presentation	X₁₄₂₅ X_3,10,4,11 X_5,12,6,13 X_15,18,16,19 X_7,17,8,16 X_17,7,18,6 X_13,20,14,1 X_19,14,20,15 X_11,8,12,9 X_9,2,10,3
Gauss code	-1, 10, -2, 1, -3, 6, -5, 9, -10, 2, -9, 3, -7, 8, -4, 5, -6, 4, -8, 7
Dowker-Thistlethwaite code	4 10 12 16 2 8 20 18 6 14
Conway Notation	[23122]

Three dimensional invariants

Symmetry type	Reversible
Unknotting number	2
3-genus	2
Bridge index	2
Super bridge index	Missing
Nakanishi index	1
Maximal Thurston-Bennequin number	[-11][-1]
Hyperbolic Volume	11.3493
A-Polynomial	See Data:10 38/A-polynomial

[edit Notes for 10 38's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus	[math]\displaystyle{ 1 }[/math]
Topological 4 genus	[math]\displaystyle{ 1 }[/math]
Concordance genus	[math]\displaystyle{ 2 }[/math]
Rasmussen s-Invariant	-2

[edit Notes for 10 38's four dimensional invariants]

Polynomial invariants

Alexander polynomial	[math]\displaystyle{ -4 t^2+15 t-21+15 t^{-1} -4 t^{-2} }[/math]
Conway polynomial	[math]\displaystyle{ -4 z^4-z^2+1 }[/math]
2nd Alexander ideal (db, data sources)	[math]\displaystyle{ \{1\} }[/math]
Determinant and Signature	{ 59, -2 }
Jones polynomial	[math]\displaystyle{ q-2+5 q^{-1} -7 q^{-2} +9 q^{-3} -10 q^{-4} +9 q^{-5} -7 q^{-6} +5 q^{-7} -3 q^{-8} + q^{-9} }[/math]
HOMFLY-PT polynomial (db, data sources)	[math]\displaystyle{ z^2 a^8-z^4 a^6+a^6-2 z^4 a^4-3 z^2 a^4-2 a^4-z^4 a^2+a^2+z^2+1 }[/math]
Kauffman polynomial (db, data sources)	[math]\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+8 z^3 a^9-z a^9+3 z^8 a^8-8 z^6 a^8+4 z^4 a^8+z^9 a^7+3 z^7 a^7-13 z^5 a^7+8 z^3 a^7-z a^7+5 z^8 a^6-10 z^6 a^6+3 z^4 a^6+2 z^2 a^6-a^6+z^9 a^5+3 z^7 a^5-7 z^5 a^5+3 z^3 a^5+2 z^8 a^4+2 z^6 a^4-8 z^4 a^4+8 z^2 a^4-2 a^4+3 z^7 a^3-2 z^5 a^3+z^3 a^3+3 z^6 a^2-3 z^4 a^2+2 z^2 a^2-a^2+2 z^5 a-2 z^3 a+z^4-2 z^2+1 }[/math]
The A2 invariant	[math]\displaystyle{ q^{28}-q^{26}-q^{24}+2 q^{22}-q^{20}+q^{18}+q^{16}-2 q^{14}-2 q^{10}+q^8+q^6-q^4+3 q^2+ q^{-4} }[/math]
The G2 invariant	[math]\displaystyle{ q^{142}-2 q^{140}+5 q^{138}-9 q^{136}+9 q^{134}-7 q^{132}-3 q^{130}+20 q^{128}-33 q^{126}+41 q^{124}-36 q^{122}+12 q^{120}+20 q^{118}-55 q^{116}+77 q^{114}-70 q^{112}+40 q^{110}+6 q^{108}-49 q^{106}+73 q^{104}-70 q^{102}+40 q^{100}-35 q^{96}+51 q^{94}-39 q^{92}+8 q^{90}+32 q^{88}-53 q^{86}+54 q^{84}-32 q^{82}-12 q^{80}+55 q^{78}-87 q^{76}+94 q^{74}-64 q^{72}+15 q^{70}+44 q^{68}-89 q^{66}+101 q^{64}-81 q^{62}+35 q^{60}+13 q^{58}-54 q^{56}+65 q^{54}-46 q^{52}+12 q^{50}+21 q^{48}-40 q^{46}+30 q^{44}-7 q^{42}-26 q^{40}+46 q^{38}-50 q^{36}+40 q^{34}-12 q^{32}-19 q^{30}+43 q^{28}-54 q^{26}+52 q^{24}-35 q^{22}+14 q^{20}+8 q^{18}-26 q^{16}+37 q^{14}-35 q^{12}+29 q^{10}-13 q^8+q^6+9 q^4-15 q^2+15-11 q^{-2} +8 q^{-4} -2 q^{-6} - q^{-8} +3 q^{-10} -3 q^{-12} +3 q^{-14} - q^{-16} + q^{-18} }[/math]

Further Quantum Invariants

Further quantum knot invariants for 10_38.

A1 Invariants.

Weight	Invariant
1	[math]\displaystyle{ q^{19}-2 q^{17}+2 q^{15}-2 q^{13}+2 q^{11}-q^9-q^7+2 q^5-2 q^3+3 q- q^{-1} + q^{-3} }[/math]
2	[math]\displaystyle{ q^{54}-2 q^{52}-2 q^{50}+7 q^{48}-q^{46}-10 q^{44}+9 q^{42}+5 q^{40}-15 q^{38}+6 q^{36}+11 q^{34}-13 q^{32}+11 q^{28}-7 q^{26}-6 q^{24}+6 q^{22}+5 q^{20}-8 q^{18}-4 q^{16}+15 q^{14}-5 q^{12}-11 q^{10}+14 q^8-2 q^6-9 q^4+9 q^2-1-4 q^{-2} +4 q^{-4} - q^{-8} + q^{-10} }[/math]
3	[math]\displaystyle{ q^{105}-2 q^{103}-2 q^{101}+3 q^{99}+7 q^{97}-q^{95}-16 q^{93}-5 q^{91}+21 q^{89}+18 q^{87}-20 q^{85}-34 q^{83}+13 q^{81}+47 q^{79}+2 q^{77}-52 q^{75}-23 q^{73}+49 q^{71}+40 q^{69}-40 q^{67}-52 q^{65}+25 q^{63}+60 q^{61}-9 q^{59}-60 q^{57}-2 q^{55}+57 q^{53}+13 q^{51}-52 q^{49}-23 q^{47}+40 q^{45}+33 q^{43}-26 q^{41}-42 q^{39}+7 q^{37}+45 q^{35}+19 q^{33}-46 q^{31}-40 q^{29}+36 q^{27}+55 q^{25}-23 q^{23}-58 q^{21}+8 q^{19}+55 q^{17}-40 q^{13}-4 q^{11}+28 q^9+4 q^7-18 q^5+q^3+10 q- q^{-1} -7 q^{-3} +3 q^{-5} +4 q^{-7} -2 q^{-9} -3 q^{-11} +2 q^{-13} + q^{-15} - q^{-19} + q^{-21} }[/math]
4	[math]\displaystyle{ q^{172}-2 q^{170}-2 q^{168}+3 q^{166}+3 q^{164}+7 q^{162}-8 q^{160}-16 q^{158}-4 q^{156}+7 q^{154}+42 q^{152}+11 q^{150}-35 q^{148}-48 q^{146}-37 q^{144}+71 q^{142}+82 q^{140}+21 q^{138}-72 q^{136}-150 q^{134}+q^{132}+118 q^{130}+152 q^{128}+31 q^{126}-202 q^{124}-155 q^{122}-3 q^{120}+214 q^{118}+222 q^{116}-86 q^{114}-233 q^{112}-210 q^{110}+106 q^{108}+327 q^{106}+120 q^{104}-153 q^{102}-338 q^{100}-74 q^{98}+285 q^{96}+254 q^{94}-14 q^{92}-329 q^{90}-190 q^{88}+177 q^{86}+277 q^{84}+73 q^{82}-257 q^{80}-219 q^{78}+82 q^{76}+253 q^{74}+123 q^{72}-165 q^{70}-228 q^{68}-31 q^{66}+206 q^{64}+188 q^{62}-15 q^{60}-212 q^{58}-202 q^{56}+68 q^{54}+234 q^{52}+209 q^{50}-100 q^{48}-335 q^{46}-142 q^{44}+155 q^{42}+364 q^{40}+99 q^{38}-292 q^{36}-277 q^{34}-23 q^{32}+324 q^{30}+218 q^{28}-130 q^{26}-226 q^{24}-132 q^{22}+163 q^{20}+177 q^{18}-11 q^{16}-90 q^{14}-114 q^{12}+43 q^{10}+76 q^8+12 q^6-4 q^4-52 q^2+6+16 q^{-2} - q^{-4} +14 q^{-6} -14 q^{-8} +4 q^{-10} - q^{-12} -7 q^{-14} +9 q^{-16} -3 q^{-18} +3 q^{-20} - q^{-22} -4 q^{-24} +3 q^{-26} - q^{-28} + q^{-30} - q^{-34} + q^{-36} }[/math]
5	[math]\displaystyle{ q^{255}-2 q^{253}-2 q^{251}+3 q^{249}+3 q^{247}+3 q^{245}-8 q^{241}-16 q^{239}-4 q^{237}+17 q^{235}+28 q^{233}+26 q^{231}-5 q^{229}-51 q^{227}-74 q^{225}-26 q^{223}+57 q^{221}+117 q^{219}+108 q^{217}-5 q^{215}-154 q^{213}-217 q^{211}-104 q^{209}+116 q^{207}+296 q^{205}+289 q^{203}+33 q^{201}-308 q^{199}-469 q^{197}-276 q^{195}+162 q^{193}+552 q^{191}+582 q^{189}+143 q^{187}-476 q^{185}-817 q^{183}-554 q^{181}+180 q^{179}+877 q^{177}+978 q^{175}+299 q^{173}-709 q^{171}-1270 q^{169}-853 q^{167}+299 q^{165}+1332 q^{163}+1373 q^{161}+265 q^{159}-1159 q^{157}-1723 q^{155}-863 q^{153}+779 q^{151}+1843 q^{149}+1388 q^{147}-283 q^{145}-1759 q^{143}-1739 q^{141}-202 q^{139}+1507 q^{137}+1886 q^{135}+612 q^{133}-1182 q^{131}-1876 q^{129}-874 q^{127}+867 q^{125}+1733 q^{123}+996 q^{121}-594 q^{119}-1551 q^{117}-1025 q^{115}+413 q^{113}+1370 q^{111}+999 q^{109}-265 q^{107}-1214 q^{105}-1004 q^{103}+117 q^{101}+1092 q^{99}+1046 q^{97}+92 q^{95}-921 q^{93}-1154 q^{91}-423 q^{89}+681 q^{87}+1269 q^{85}+837 q^{83}-297 q^{81}-1287 q^{79}-1325 q^{77}-232 q^{75}+1175 q^{73}+1733 q^{71}+856 q^{69}-846 q^{67}-1973 q^{65}-1474 q^{63}+348 q^{61}+1961 q^{59}+1952 q^{57}+233 q^{55}-1707 q^{53}-2162 q^{51}-770 q^{49}+1240 q^{47}+2114 q^{45}+1144 q^{43}-734 q^{41}-1817 q^{39}-1272 q^{37}+249 q^{35}+1384 q^{33}+1218 q^{31}+78 q^{29}-936 q^{27}-1005 q^{25}-248 q^{23}+543 q^{21}+740 q^{19}+309 q^{17}-271 q^{15}-495 q^{13}-265 q^{11}+103 q^9+288 q^7+207 q^5-16 q^3-159 q-132 q^{-1} -18 q^{-3} +73 q^{-5} +80 q^{-7} +23 q^{-9} -28 q^{-11} -38 q^{-13} -23 q^{-15} +6 q^{-17} +22 q^{-19} +11 q^{-21} + q^{-23} -3 q^{-25} -9 q^{-27} -6 q^{-29} +6 q^{-31} +2 q^{-33} +3 q^{-37} -2 q^{-39} -3 q^{-41} +2 q^{-43} - q^{-47} + q^{-49} - q^{-53} + q^{-55} }[/math]

A2 Invariants.

Weight	Invariant
1,0	[math]\displaystyle{ q^{28}-q^{26}-q^{24}+2 q^{22}-q^{20}+q^{18}+q^{16}-2 q^{14}-2 q^{10}+q^8+q^6-q^4+3 q^2+ q^{-4} }[/math]
1,1	[math]\displaystyle{ q^{76}-4 q^{74}+12 q^{72}-30 q^{70}+58 q^{68}-98 q^{66}+150 q^{64}-204 q^{62}+256 q^{60}-290 q^{58}+294 q^{56}-270 q^{54}+206 q^{52}-112 q^{50}-4 q^{48}+138 q^{46}-262 q^{44}+374 q^{42}-460 q^{40}+508 q^{38}-519 q^{36}+480 q^{34}-410 q^{32}+310 q^{30}-197 q^{28}+86 q^{26}+20 q^{24}-96 q^{22}+156 q^{20}-186 q^{18}+200 q^{16}-202 q^{14}+186 q^{12}-170 q^{10}+144 q^8-120 q^6+95 q^4-68 q^2+50-30 q^{-2} +21 q^{-4} -10 q^{-6} +6 q^{-8} -2 q^{-10} + q^{-12} }[/math]
2,0	[math]\displaystyle{ q^{72}-q^{70}-2 q^{68}+4 q^{64}+3 q^{62}-6 q^{60}-3 q^{58}+5 q^{56}+4 q^{54}-6 q^{52}-6 q^{50}+8 q^{48}+6 q^{46}-6 q^{44}-5 q^{42}+6 q^{40}+2 q^{38}-7 q^{36}-3 q^{34}+3 q^{32}+q^{30}-q^{28}+6 q^{26}-q^{24}-4 q^{22}+8 q^{20}+5 q^{18}-9 q^{16}-7 q^{14}+8 q^{12}+4 q^{10}-10 q^8-4 q^6+9 q^4+2 q^2-4+ q^{-2} +4 q^{-4} + q^{-6} - q^{-8} + q^{-12} }[/math]

A3 Invariants.

Weight	Invariant
0,1,0	[math]\displaystyle{ q^{60}-2 q^{58}+q^{56}+2 q^{54}-6 q^{52}+5 q^{50}+2 q^{48}-9 q^{46}+8 q^{44}+2 q^{42}-11 q^{40}+8 q^{38}+6 q^{36}-10 q^{34}+4 q^{32}+6 q^{30}-4 q^{28}-3 q^{26}+q^{24}+5 q^{22}-9 q^{20}-3 q^{18}+11 q^{16}-9 q^{14}-5 q^{12}+13 q^{10}-4 q^8-6 q^6+10 q^4-3+4 q^{-2} + q^{-4} - q^{-6} + q^{-8} }[/math]
1,0,0	[math]\displaystyle{ q^{37}-q^{35}-q^{31}+2 q^{29}-q^{27}+2 q^{25}+q^{21}-2 q^{19}-q^{17}-q^{15}-2 q^{13}+q^{11}+2 q^7-q^5+3 q^3+ q^{-1} + q^{-5} }[/math]

B2 Invariants.

Weight

Invariant

0,1

[math]\displaystyle{ q^{60}-2 q^{58}+5 q^{56}-8 q^{54}+10 q^{52}-13 q^{50}+14 q^{48}-15 q^{46}+14 q^{44}-10 q^{42}+5 q^{40}+2 q^{38}-8 q^{36}+16 q^{34}-22 q^{32}+26 q^{30}-28 q^{28}+27 q^{26}-25 q^{24}+19 q^{22}-13 q^{20}+5 q^{18}+q^{16}-7 q^{14}+11 q^{12}-13 q^{10}+14 q^8-12 q^6+12 q^4-8 q^2+7-4 q^{-2} +3 q^{-4} - q^{-6} + q^{-8} }[/math]

1,0

[math]\displaystyle{ q^{98}-2 q^{94}-2 q^{92}+3 q^{90}+5 q^{88}-3 q^{86}-8 q^{84}-q^{82}+11 q^{80}+7 q^{78}-10 q^{76}-13 q^{74}+4 q^{72}+16 q^{70}+4 q^{68}-14 q^{66}-11 q^{64}+8 q^{62}+14 q^{60}-12 q^{56}-3 q^{54}+9 q^{52}+5 q^{50}-7 q^{48}-6 q^{46}+7 q^{44}+7 q^{42}-6 q^{40}-10 q^{38}+4 q^{36}+11 q^{34}-q^{32}-13 q^{30}-4 q^{28}+12 q^{26}+8 q^{24}-9 q^{22}-13 q^{20}+2 q^{18}+14 q^{16}+6 q^{14}-9 q^{12}-10 q^{10}+2 q^8+11 q^6+4 q^4-4 q^2-5+ q^{-2} +4 q^{-4} +2 q^{-6} - q^{-8} - q^{-10} + q^{-14} }[/math]

G2 Invariants.

Weight

Invariant

1,0

[math]\displaystyle{ q^{142}-2 q^{140}+5 q^{138}-9 q^{136}+9 q^{134}-7 q^{132}-3 q^{130}+20 q^{128}-33 q^{126}+41 q^{124}-36 q^{122}+12 q^{120}+20 q^{118}-55 q^{116}+77 q^{114}-70 q^{112}+40 q^{110}+6 q^{108}-49 q^{106}+73 q^{104}-70 q^{102}+40 q^{100}-35 q^{96}+51 q^{94}-39 q^{92}+8 q^{90}+32 q^{88}-53 q^{86}+54 q^{84}-32 q^{82}-12 q^{80}+55 q^{78}-87 q^{76}+94 q^{74}-64 q^{72}+15 q^{70}+44 q^{68}-89 q^{66}+101 q^{64}-81 q^{62}+35 q^{60}+13 q^{58}-54 q^{56}+65 q^{54}-46 q^{52}+12 q^{50}+21 q^{48}-40 q^{46}+30 q^{44}-7 q^{42}-26 q^{40}+46 q^{38}-50 q^{36}+40 q^{34}-12 q^{32}-19 q^{30}+43 q^{28}-54 q^{26}+52 q^{24}-35 q^{22}+14 q^{20}+8 q^{18}-26 q^{16}+37 q^{14}-35 q^{12}+29 q^{10}-13 q^8+q^6+9 q^4-15 q^2+15-11 q^{-2} +8 q^{-4} -2 q^{-6} - q^{-8} +3 q^{-10} -3 q^{-12} +3 q^{-14} - q^{-16} + q^{-18} }[/math]

.

Computer Talk

The above data is available with the Mathematica package 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]:= AppendTo[$Path, "C:/drorbn/projects/KAtlas/"]; << KnotTheory`

Loading KnotTheory` version of August 31, 2006, 11:25:27.5625.

In[3]:= K = Knot["10 38"];

In[4]:= Alexander[K][t]

KnotTheory::loading: Loading precomputed data in PD4Knots`.

Out[4]= [math]\displaystyle{ -4 t^2+15 t-21+15 t^{-1} -4 t^{-2} }[/math]

In[5]:= Conway[K][z]

Out[5]= [math]\displaystyle{ -4 z^4-z^2+1 }[/math]

In[6]:= Alexander[K, 2][t]

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.

Out[6]= [math]\displaystyle{ \{1\} }[/math]

In[7]:= {KnotDet[K], KnotSignature[K]}

Out[7]= { 59, -2 }

In[8]:= Jones[K][q]

KnotTheory::loading: Loading precomputed data in Jones4Knots`.

Out[8]= [math]\displaystyle{ q-2+5 q^{-1} -7 q^{-2} +9 q^{-3} -10 q^{-4} +9 q^{-5} -7 q^{-6} +5 q^{-7} -3 q^{-8} + q^{-9} }[/math]

In[9]:= HOMFLYPT[K][a, z]

KnotTheory::credits: The HOMFLYPT program was written by Scott Morrison.

Out[9]= [math]\displaystyle{ z^2 a^8-z^4 a^6+a^6-2 z^4 a^4-3 z^2 a^4-2 a^4-z^4 a^2+a^2+z^2+1 }[/math]

In[10]:= Kauffman[K][a, z]

KnotTheory::loading: Loading precomputed data in Kauffman4Knots`.

Out[10]= [math]\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+8 z^3 a^9-z a^9+3 z^8 a^8-8 z^6 a^8+4 z^4 a^8+z^9 a^7+3 z^7 a^7-13 z^5 a^7+8 z^3 a^7-z a^7+5 z^8 a^6-10 z^6 a^6+3 z^4 a^6+2 z^2 a^6-a^6+z^9 a^5+3 z^7 a^5-7 z^5 a^5+3 z^3 a^5+2 z^8 a^4+2 z^6 a^4-8 z^4 a^4+8 z^2 a^4-2 a^4+3 z^7 a^3-2 z^5 a^3+z^3 a^3+3 z^6 a^2-3 z^4 a^2+2 z^2 a^2-a^2+2 z^5 a-2 z^3 a+z^4-2 z^2+1 }[/math]

Vassiliev invariants

V₂ and V₃:

(-1, 2)

V_2,1 through V_6,9:

V_2,1

V_3,1

V_4,1

V_4,2

V_4,3

V_5,1

V_5,2

V_5,3

V_5,4

V_6,1

V_6,2

V_6,3

V_6,4

V_6,5

V_6,6

V_6,7

V_6,8

V_6,9

[math]\displaystyle{ -4 }[/math]

[math]\displaystyle{ 16 }[/math]

[math]\displaystyle{ 8 }[/math]

[math]\displaystyle{ \frac{34}{3} }[/math]

[math]\displaystyle{ \frac{110}{3} }[/math]

[math]\displaystyle{ -64 }[/math]

[math]\displaystyle{ -\frac{704}{3} }[/math]

[math]\displaystyle{ -\frac{320}{3} }[/math]

[math]\displaystyle{ -112 }[/math]

[math]\displaystyle{ -\frac{32}{3} }[/math]

[math]\displaystyle{ 128 }[/math]

[math]\displaystyle{ -\frac{136}{3} }[/math]

[math]\displaystyle{ -\frac{440}{3} }[/math]

[math]\displaystyle{ \frac{21809}{30} }[/math]

[math]\displaystyle{ \frac{2222}{15} }[/math]

[math]\displaystyle{ \frac{12178}{45} }[/math]

[math]\displaystyle{ \frac{2191}{18} }[/math]

[math]\displaystyle{ -\frac{1231}{30} }[/math]

V_2,1 through V_6,9 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]-2 is the signature of 10 38. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\		r
	\
j		\

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

χ

3

1

-1

4

1

3

-3

4

2

-2

-5

5

3

2

-7

5

4

-1

-9

4

5

-1

-11

3

5

2

-13

2

4

-2

-15

1

3

2

-17

2

-2

-19

1

Computer Talk

Much of the above data can be recomputed by Mathematica using the package KnotTheory`. See A Sample KnotTheory` Session.

[math]\displaystyle{ \textrm{Include}(\textrm{ColouredJonesM.mhtml}) }[/math]

In[1]:=	<< KnotTheory`
Loading KnotTheory` (version of August 17, 2005, 14:44:34)...
In[2]:=	Crossings[Knot[10, 38]]
Out[2]=	10
In[3]:=	PD[Knot[10, 38]]
Out[3]=	PD[X[1, 4, 2, 5], X[3, 10, 4, 11], X[5, 12, 6, 13], X[15, 18, 16, 19], X[7, 17, 8, 16], X[17, 7, 18, 6], X[13, 20, 14, 1], X[19, 14, 20, 15], X[11, 8, 12, 9], X[9, 2, 10, 3]]
In[4]:=	GaussCode[Knot[10, 38]]
Out[4]=	GaussCode[-1, 10, -2, 1, -3, 6, -5, 9, -10, 2, -9, 3, -7, 8, -4, 5, -6, 4, -8, 7]
In[5]:=	BR[Knot[10, 38]]
Out[5]=	BR[5, {-1, -1, -1, -2, 1, -2, -2, -3, 2, 4, -3, 4}]
In[6]:=	alex = Alexander[Knot[10, 38]][t]
Out[6]=	4 15 2 -21 - -- + -- + 15 t - 4 t 2 t t
In[7]:=	Conway[Knot[10, 38]][z]
Out[7]=	2 4 1 - z - 4 z
In[8]:=	Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=	{Knot[10, 38], Knot[11, Alternating, 166]}
In[9]:=	{KnotDet[Knot[10, 38]], KnotSignature[Knot[10, 38]]}
Out[9]=	{59, -2}
In[10]:=	J=Jones[Knot[10, 38]][q]
Out[10]=	-9 3 5 7 9 10 9 7 5 -2 + q - -- + -- - -- + -- - -- + -- - -- + - + q 8 7 6 5 4 3 2 q q q q q q q q
In[11]:=	Select[AllKnots[], (J === Jones[#][q] \|\| (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=	{Knot[10, 38]}
In[12]:=	A2Invariant[Knot[10, 38]][q]
Out[12]=	-28 -26 -24 2 -20 -18 -16 2 2 -8 -6 q - q - q + --- - q + q + q - --- - --- + q + q - 22 14 10 q q q -4 3 4 q + -- + q 2 q
In[13]:=	Kauffman[Knot[10, 38]][a, z]
Out[13]=	2 4 6 7 9 2 2 2 4 2 6 2 1 - a - 2 a - a - a z - a z - 2 z + 2 a z + 8 a z + 2 a z + 10 2 3 3 3 5 3 7 3 9 3 4 2 a z - 2 a z + a z + 3 a z + 8 a z + 8 a z + z - 2 4 4 4 6 4 8 4 10 4 5 3 5 3 a z - 8 a z + 3 a z + 4 a z - 3 a z + 2 a z - 2 a z - 5 5 7 5 9 5 2 6 4 6 6 6 7 a z - 13 a z - 10 a z + 3 a z + 2 a z - 10 a z - 8 6 10 6 3 7 5 7 7 7 9 7 4 8 8 a z + a z + 3 a z + 3 a z + 3 a z + 3 a z + 2 a z + 6 8 8 8 5 9 7 9 5 a z + 3 a z + a z + a z
In[14]:=	{Vassiliev[2][Knot[10, 38]], Vassiliev[3][Knot[10, 38]]}
Out[14]=	{0, 2}
In[15]:=	Kh[Knot[10, 38]][q, t]
Out[15]=	2 4 1 2 1 3 2 4 3 -- + - + ------ + ------ + ------ + ------ + ------ + ------ + ------ + 3 q 19 8 17 7 15 7 15 6 13 6 13 5 11 5 q q t q t q t q t q t q t q t 5 4 5 5 4 5 3 4 t ------ + ----- + ----- + ----- + ----- + ----- + ---- + ---- + - + 11 4 9 4 9 3 7 3 7 2 5 2 5 3 q q t q t q t q t q t q t q t q t 3 2 q t + q t

10 38

Contents

Knot presentations

Three dimensional invariants

Four dimensional invariants

Polynomial invariants

Vassiliev invariants

Khovanov Homology

Computer Talk

Navigation menu

Page actions

Page actions

Personal tools

Navigation

Search

Tools