8 10

8_9

8_11

Visit 8 10's page at the Knot Server (KnotPlot driven, includes 3D interactive images!) Visit 8 10's page at Knotilus! Visit 8 10's page at the original Knot Atlas!

8 10 Quick Notes

8 10 Further Notes and Views

Knot presentations

Planar diagram presentation	X1425 X3849 X9,15,10,14 X5,13,6,12 X13,7,14,6 X11,1,12,16 X15,11,16,10 X7283
Gauss code	-1, 8, -2, 1, -4, 5, -8, 2, -3, 7, -6, 4, -5, 3, -7, 6
Dowker-Thistlethwaite code	4 8 12 2 14 16 6 10
Conway Notation	[3,21,2]

Three dimensional invariants

Symmetry type Reversible Unknotting number 2 3-genus 3 Bridge index 3 Super bridge index $\{4,6\}$ Nakanishi index 1 Maximal Thurston-Bennequin number [-2][-8] Hyperbolic Volume 8.65115 A-Polynomial See Data:8 10/A-polynomial

[edit Notes for 8 10's three dimensional invariants]

Four dimensional invariants

Smooth 4 genus $1$ Topological 4 genus $1$ Concordance genus $1$ Rasmussen s-Invariant 2

[edit Notes for 8 10's four dimensional invariants]

Polynomial invariants

Alexander polynomial	$t^{3}-3t^{2}+6t-7+6t^{-1}-3t^{-2}+t^{-3}$
Conway polynomial	$z^{6}+3z^{4}+3z^{2}+1$
2nd Alexander ideal (db, data sources)	$\{1\}$
Determinant and Signature	{ 27, 2 }
Jones polynomial	$-q^{6}+2q^{5}-4q^{4}+5q^{3}-4q^{2}+5q-3+2q^{-1}-q^{-2}$
HOMFLY-PT polynomial (db, data sources)	$z^{6}a^{-2}+5z^{4}a^{-2}-z^{4}a^{-4}-z^{4}+9z^{2}a^{-2}-3z^{2}a^{-4}-3z^{2}+6a^{-2}-3a^{-4}-2$
Kauffman polynomial (db, data sources)	$z^{7}a^{-1}+z^{7}a^{-3}+5z^{6}a^{-2}+3z^{6}a^{-4}+2z^{6}+az^{5}+z^{5}a^{-1}+3z^{5}a^{-3}+3z^{5}a^{-5}-13z^{4}a^{-2}-5z^{4}a^{-4}+2z^{4}a^{-6}-6z^{4}-3az^{3}-8z^{3}a^{-1}-9z^{3}a^{-3}-3z^{3}a^{-5}+z^{3}a^{-7}+12z^{2}a^{-2}+6z^{2}a^{-4}-z^{2}a^{-6}+5z^{2}+2az+5za^{-1}+6za^{-3}+2za^{-5}-za^{-7}-6a^{-2}-3a^{-4}-2$
The A2 invariant	$-q^{6}-q^{2}+2q^{-2}+q^{-4}+4q^{-6}+q^{-8}+q^{-10}-q^{-12}-2q^{-14}-q^{-18}$
The G2 invariant	$q^{32}-q^{30}+3q^{28}-4q^{26}+2q^{24}-q^{22}-5q^{20}+9q^{18}-12q^{16}+10q^{14}-6q^{12}-5q^{10}+12q^{8}-16q^{6}+14q^{4}-9q^{2}-2+9q^{-2}-13q^{-4}+9q^{-6}-q^{-8}-4q^{-10}+12q^{-12}-7q^{-14}+3q^{-16}+7q^{-18}-10q^{-20}+19q^{-22}-14q^{-24}+9q^{-26}+7q^{-28}-12q^{-30}+23q^{-32}-19q^{-34}+14q^{-36}-q^{-38}-7q^{-40}+13q^{-42}-17q^{-44}+11q^{-46}-q^{-48}-7q^{-50}+8q^{-52}-8q^{-54}-2q^{-56}+8q^{-58}-14q^{-60}+9q^{-62}-6q^{-64}-3q^{-66}+9q^{-68}-14q^{-70}+14q^{-72}-8q^{-74}+2q^{-76}+2q^{-78}-7q^{-80}+6q^{-82}-6q^{-84}+5q^{-86}-2q^{-88}+q^{-92}-2q^{-94}+2q^{-96}-q^{-98}+q^{-100}$

Further Quantum Invariants

Further quantum knot invariants for 8_10.

A1 Invariants.

Weight	Invariant
1	$-q^{5}+q^{3}-q+2q^{-1}+q^{-3}+q^{-5}+q^{-7}-2q^{-9}+q^{-11}-q^{-13}$
2	$q^{16}-q^{14}-2q^{12}+3q^{10}-5q^{6}+3q^{4}+3q^{2}-5+2q^{-2}+5q^{-4}-2q^{-6}+4q^{-10}+q^{-12}-2q^{-14}-q^{-16}+4q^{-18}-4q^{-20}-4q^{-22}+6q^{-24}-2q^{-26}-4q^{-28}+3q^{-30}-q^{-34}+q^{-36}$
3	$-q^{33}+q^{31}+2q^{29}-4q^{25}-2q^{23}+6q^{21}+5q^{19}-6q^{17}-10q^{15}+3q^{13}+13q^{11}+q^{9}-15q^{7}-6q^{5}+12q^{3}+12q-11q^{-1}-11q^{-3}+8q^{-5}+16q^{-7}-3q^{-9}-13q^{-11}+2q^{-13}+14q^{-15}+q^{-17}-10q^{-19}-3q^{-21}+6q^{-23}+8q^{-25}-4q^{-27}-11q^{-29}-4q^{-31}+14q^{-33}+6q^{-35}-13q^{-37}-13q^{-39}+13q^{-41}+13q^{-43}-10q^{-45}-13q^{-47}+4q^{-49}+11q^{-51}-q^{-53}-6q^{-55}+q^{-57}+3q^{-59}-q^{-63}+q^{-67}-q^{-69}$
4	$q^{56}-q^{54}-2q^{52}+q^{48}+6q^{46}-6q^{42}-6q^{40}-4q^{38}+15q^{36}+12q^{34}-2q^{32}-16q^{30}-25q^{28}+9q^{26}+26q^{24}+24q^{22}-4q^{20}-45q^{18}-22q^{16}+11q^{14}+45q^{12}+32q^{10}-33q^{8}-46q^{6}-26q^{4}+37q^{2}+60+q^{-2}-40q^{-4}-49q^{-6}+13q^{-8}+60q^{-10}+25q^{-12}-26q^{-14}-52q^{-16}-q^{-18}+46q^{-20}+28q^{-22}-16q^{-24}-42q^{-26}-9q^{-28}+27q^{-30}+29q^{-32}-4q^{-34}-30q^{-36}-22q^{-38}+5q^{-40}+32q^{-42}+21q^{-44}-7q^{-46}-40q^{-48}-31q^{-50}+28q^{-52}+46q^{-54}+27q^{-56}-41q^{-58}-66q^{-60}+3q^{-62}+48q^{-64}+55q^{-66}-17q^{-68}-64q^{-70}-19q^{-72}+21q^{-74}+50q^{-76}+10q^{-78}-32q^{-80}-19q^{-82}-4q^{-84}+22q^{-86}+10q^{-88}-7q^{-90}-3q^{-92}-6q^{-94}+4q^{-96}+2q^{-98}-2q^{-100}+q^{-102}-2q^{-104}+q^{-106}-q^{-110}+q^{-112}$
5	$-q^{85}+q^{83}+2q^{81}-q^{77}-3q^{75}-4q^{73}+8q^{69}+8q^{67}+2q^{65}-7q^{63}-16q^{61}-14q^{59}+4q^{57}+26q^{55}+29q^{53}+10q^{51}-23q^{49}-49q^{47}-39q^{45}+7q^{43}+59q^{41}+71q^{39}+31q^{37}-43q^{35}-97q^{33}-82q^{31}+2q^{29}+98q^{27}+127q^{25}+61q^{23}-66q^{21}-153q^{19}-129q^{17}+2q^{15}+149q^{13}+181q^{11}+66q^{9}-107q^{7}-208q^{5}-143q^{3}+53q+209q^{-1}+185q^{-3}+16q^{-5}-176q^{-7}-215q^{-9}-60q^{-11}+146q^{-13}+214q^{-15}+94q^{-17}-100q^{-19}-198q^{-21}-105q^{-23}+78q^{-25}+170q^{-27}+104q^{-29}-55q^{-31}-147q^{-33}-93q^{-35}+40q^{-37}+124q^{-39}+82q^{-41}-32q^{-43}-108q^{-45}-81q^{-47}+14q^{-49}+92q^{-51}+84q^{-53}+12q^{-55}-69q^{-57}-102q^{-59}-55q^{-61}+46q^{-63}+112q^{-65}+105q^{-67}+9q^{-69}-122q^{-71}-164q^{-73}-60q^{-75}+104q^{-77}+204q^{-79}+139q^{-81}-71q^{-83}-236q^{-85}-193q^{-87}+11q^{-89}+218q^{-91}+241q^{-93}+50q^{-95}-176q^{-97}-246q^{-99}-100q^{-101}+113q^{-103}+213q^{-105}+131q^{-107}-46q^{-109}-160q^{-111}-128q^{-113}+q^{-115}+98q^{-117}+99q^{-119}+27q^{-121}-47q^{-123}-64q^{-125}-31q^{-127}+17q^{-129}+32q^{-131}+20q^{-133}-q^{-135}-13q^{-137}-12q^{-139}-4q^{-141}+6q^{-143}+5q^{-145}-q^{-151}-2q^{-153}+q^{-155}+2q^{-157}-q^{-159}+q^{-163}-q^{-165}$
6	$q^{120}-q^{118}-2q^{116}+q^{112}+3q^{110}+q^{108}+4q^{106}-2q^{104}-10q^{102}-7q^{100}-2q^{98}+8q^{96}+10q^{94}+21q^{92}+8q^{90}-16q^{88}-30q^{86}-32q^{84}-12q^{82}+8q^{80}+61q^{78}+66q^{76}+31q^{74}-25q^{72}-81q^{70}-100q^{68}-88q^{66}+27q^{64}+121q^{62}+165q^{60}+121q^{58}+8q^{56}-137q^{54}-260q^{52}-194q^{50}-43q^{48}+171q^{46}+308q^{44}+312q^{42}+121q^{40}-207q^{38}-392q^{36}-416q^{34}-182q^{32}+171q^{30}+505q^{28}+550q^{26}+238q^{24}-187q^{22}-585q^{20}-648q^{18}-349q^{16}+245q^{14}+694q^{12}+721q^{10}+362q^{8}-285q^{6}-773q^{4}-829q^{2}-300+394q^{-2}+838q^{-4}+803q^{-6}+225q^{-8}-492q^{-10}-923q^{-12}-684q^{-14}-47q^{-16}+604q^{-18}+871q^{-20}+539q^{-22}-128q^{-24}-712q^{-26}-727q^{-28}-295q^{-30}+311q^{-32}+677q^{-34}+545q^{-36}+55q^{-38}-455q^{-40}-555q^{-42}-298q^{-44}+159q^{-46}+453q^{-48}+393q^{-50}+60q^{-52}-302q^{-54}-376q^{-56}-203q^{-58}+123q^{-60}+320q^{-62}+280q^{-64}+44q^{-66}-222q^{-68}-309q^{-70}-203q^{-72}+56q^{-74}+255q^{-76}+318q^{-78}+173q^{-80}-83q^{-82}-316q^{-84}-375q^{-86}-189q^{-88}+105q^{-90}+417q^{-92}+486q^{-94}+266q^{-96}-200q^{-98}-580q^{-100}-612q^{-102}-288q^{-104}+321q^{-106}+768q^{-108}+775q^{-110}+203q^{-112}-517q^{-114}-928q^{-116}-808q^{-118}-103q^{-120}+689q^{-122}+1086q^{-124}+708q^{-126}-81q^{-128}-797q^{-130}-1043q^{-132}-579q^{-134}+221q^{-136}+876q^{-138}+865q^{-140}+366q^{-142}-297q^{-144}-761q^{-146}-678q^{-148}-199q^{-150}+362q^{-152}+563q^{-154}+434q^{-156}+85q^{-158}-283q^{-160}-399q^{-162}-258q^{-164}+21q^{-166}+177q^{-168}+223q^{-170}+139q^{-172}-26q^{-174}-120q^{-176}-119q^{-178}-38q^{-180}+10q^{-182}+53q^{-184}+63q^{-186}+17q^{-188}-18q^{-190}-28q^{-192}-12q^{-194}-10q^{-196}+5q^{-198}+17q^{-200}+6q^{-202}-2q^{-204}-5q^{-206}+q^{-208}-4q^{-210}-q^{-212}+5q^{-214}-q^{-218}-2q^{-220}+q^{-222}-q^{-226}+q^{-228}$

A2 Invariants.

Weight	Invariant
1,0	$-q^{6}-q^{2}+2q^{-2}+q^{-4}+4q^{-6}+q^{-8}+q^{-10}-q^{-12}-2q^{-14}-q^{-18}$
1,1	$q^{20}-2q^{18}+6q^{16}-12q^{14}+19q^{12}-28q^{10}+36q^{8}-44q^{6}+39q^{4}-40q^{2}+26-10q^{-2}-8q^{-4}+34q^{-6}-40q^{-8}+70q^{-10}-67q^{-12}+80q^{-14}-70q^{-16}+60q^{-18}-49q^{-20}+24q^{-22}-12q^{-24}-12q^{-26}+23q^{-28}-34q^{-30}+34q^{-32}-34q^{-34}+32q^{-36}-26q^{-38}+18q^{-40}-14q^{-42}+11q^{-44}-6q^{-46}+4q^{-48}-2q^{-50}+q^{-52}$
2,0	$q^{18}-q^{14}+q^{10}-q^{8}-3q^{6}-q^{4}+q^{2}-2-2q^{-2}+3q^{-4}+q^{-6}+q^{-8}+3q^{-10}+6q^{-12}+4q^{-14}+5q^{-16}+6q^{-18}+2q^{-20}-4q^{-22}-3q^{-24}-3q^{-26}-7q^{-28}-4q^{-30}-q^{-36}+2q^{-40}+q^{-42}+q^{-46}$
3,0	$-q^{36}+q^{32}+2q^{30}-3q^{26}-q^{24}+3q^{22}+6q^{20}-7q^{16}-6q^{14}+3q^{12}+8q^{10}-12q^{6}-9q^{4}+3q^{2}+10-q^{-2}-9q^{-4}-3q^{-6}+8q^{-8}+10q^{-10}-q^{-12}-2q^{-14}+3q^{-16}+10q^{-18}+4q^{-20}+4q^{-24}+11q^{-26}+5q^{-28}+q^{-30}+9q^{-34}+4q^{-36}-11q^{-38}-18q^{-40}-9q^{-42}+3q^{-44}-4q^{-46}-13q^{-48}-14q^{-50}+4q^{-52}+10q^{-54}+4q^{-56}-5q^{-58}-4q^{-60}+7q^{-62}+10q^{-64}+4q^{-66}-q^{-68}-2q^{-70}+2q^{-72}+q^{-74}-q^{-76}-q^{-78}-q^{-80}-q^{-84}$

A3 Invariants.

Weight	Invariant
0,1,0	$q^{14}-q^{12}+q^{10}+q^{8}-4q^{6}-2q^{2}-7+q^{-2}+3q^{-4}+9q^{-8}+10q^{-10}+6q^{-12}+3q^{-14}+q^{-16}-2q^{-18}-6q^{-20}-6q^{-22}+q^{-24}-4q^{-26}-3q^{-28}+5q^{-30}-2q^{-32}-2q^{-34}+3q^{-36}-q^{-40}+q^{-42}$
1,0,0	$-q^{7}-2q^{3}-q^{-1}+2q^{-3}+2q^{-5}+4q^{-7}+4q^{-9}+2q^{-11}+q^{-13}-2q^{-15}-q^{-17}-3q^{-19}-q^{-23}$
1,0,1	$q^{24}-2q^{22}+5q^{20}-5q^{18}+2q^{16}+6q^{14}-16q^{12}+24q^{10}-21q^{8}+7q^{6}+7q^{4}-39q^{2}+35-47q^{-2}+14q^{-4}+4q^{-6}-21q^{-8}+47q^{-10}-7q^{-12}+34q^{-14}+21q^{-16}+16q^{-18}+19q^{-22}-26q^{-24}-13q^{-26}+7q^{-28}-54q^{-30}+29q^{-32}-29q^{-34}-2q^{-36}+27q^{-38}-32q^{-40}+31q^{-42}-7q^{-44}-10q^{-46}+21q^{-48}-19q^{-50}+5q^{-52}+5q^{-54}-9q^{-56}+9q^{-58}-3q^{-60}-q^{-62}+3q^{-64}-2q^{-66}+q^{-68}$

A4 Invariants.

Weight	Invariant
0,1,0,0	$q^{16}+q^{12}+2q^{10}-2q^{6}-q^{4}-6q^{2}-10-7q^{-2}-4q^{-4}-3q^{-6}+q^{-8}+14q^{-10}+17q^{-12}+15q^{-14}+16q^{-16}+17q^{-18}+2q^{-20}-3q^{-22}-4q^{-24}-11q^{-26}-14q^{-28}-8q^{-30}-4q^{-32}-6q^{-34}-2q^{-36}+3q^{-38}+2q^{-40}-2q^{-42}+2q^{-44}+3q^{-46}+q^{-52}$
1,0,0,0	$-q^{8}-2q^{4}-q^{2}-1-q^{-2}+2q^{-4}+2q^{-6}+5q^{-8}+4q^{-10}+5q^{-12}+2q^{-14}+q^{-16}-2q^{-18}-2q^{-20}-2q^{-22}-3q^{-24}-q^{-28}$

B2 Invariants.

Weight	Invariant
0,1	$-q^{14}+q^{12}-3q^{10}+3q^{8}-4q^{6}+4q^{4}-4q^{2}+3-q^{-2}+q^{-4}+4q^{-6}-3q^{-8}+8q^{-10}-6q^{-12}+9q^{-14}-7q^{-16}+6q^{-18}-4q^{-20}+2q^{-22}-q^{-24}-2q^{-26}+3q^{-28}-5q^{-30}+4q^{-32}-4q^{-34}+3q^{-36}-2q^{-38}+q^{-40}-q^{-42}$
1,0	$q^{24}-q^{20}-q^{18}+2q^{16}+2q^{14}-2q^{12}-4q^{10}-q^{8}+3q^{6}+q^{4}-5q^{2}-5+q^{-2}+4q^{-4}+2q^{-6}-3q^{-8}+q^{-10}+5q^{-12}+6q^{-14}+q^{-16}+2q^{-18}+4q^{-20}+5q^{-22}-3q^{-26}-q^{-28}+2q^{-30}-q^{-32}-5q^{-34}-4q^{-36}+q^{-38}+2q^{-40}-3q^{-42}-5q^{-44}+5q^{-48}+q^{-50}-3q^{-52}-3q^{-54}+q^{-56}+3q^{-58}+q^{-60}-q^{-62}-q^{-64}+q^{-68}$

D4 Invariants.

Weight	Invariant
1,0,0,0	$q^{18}-q^{16}+2q^{14}-2q^{12}+3q^{10}-4q^{8}+q^{6}-6q^{4}-6-2q^{-2}-2q^{-4}+q^{-6}+5q^{-8}+3q^{-10}+13q^{-12}+5q^{-14}+14q^{-16}+9q^{-20}-5q^{-22}+3q^{-24}-9q^{-26}-3q^{-28}-7q^{-30}-2q^{-32}-2q^{-34}-3q^{-36}+q^{-38}-3q^{-40}+5q^{-42}-3q^{-44}+2q^{-46}-3q^{-48}+3q^{-50}-q^{-52}+q^{-54}-q^{-56}+q^{-58}$

G2 Invariants.

Weight

Invariant

1,0

$q^{32}-q^{30}+3q^{28}-4q^{26}+2q^{24}-q^{22}-5q^{20}+9q^{18}-12q^{16}+10q^{14}-6q^{12}-5q^{10}+12q^{8}-16q^{6}+14q^{4}-9q^{2}-2+9q^{-2}-13q^{-4}+9q^{-6}-q^{-8}-4q^{-10}+12q^{-12}-7q^{-14}+3q^{-16}+7q^{-18}-10q^{-20}+19q^{-22}-14q^{-24}+9q^{-26}+7q^{-28}-12q^{-30}+23q^{-32}-19q^{-34}+14q^{-36}-q^{-38}-7q^{-40}+13q^{-42}-17q^{-44}+11q^{-46}-q^{-48}-7q^{-50}+8q^{-52}-8q^{-54}-2q^{-56}+8q^{-58}-14q^{-60}+9q^{-62}-6q^{-64}-3q^{-66}+9q^{-68}-14q^{-70}+14q^{-72}-8q^{-74}+2q^{-76}+2q^{-78}-7q^{-80}+6q^{-82}-6q^{-84}+5q^{-86}-2q^{-88}+q^{-92}-2q^{-94}+2q^{-96}-q^{-98}+q^{-100}$

.

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. Read more at http://katlas.math.toronto.edu/wiki/KnotTheory.

In[3]:=

K = Knot["8 10"];

In[4]:=

Alexander[K][t]

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

Out[4]=

$t^{3}-3t^{2}+6t-7+6t^{-1}-3t^{-2}+t^{-3}$

In[5]:=

Conway[K][z]

Out[5]=

$z^{6}+3z^{4}+3z^{2}+1$

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]=

$\{1\}$

In[7]:=

{KnotDet[K], KnotSignature[K]}

Out[7]=

{ 27, 2 }

In[8]:=

Jones[K][q]

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

Out[8]=

$-q^{6}+2q^{5}-4q^{4}+5q^{3}-4q^{2}+5q-3+2q^{-1}-q^{-2}$

In[9]:=

HOMFLYPT[K][a, z]

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

Out[9]=

$z^{6}a^{-2}+5z^{4}a^{-2}-z^{4}a^{-4}-z^{4}+9z^{2}a^{-2}-3z^{2}a^{-4}-3z^{2}+6a^{-2}-3a^{-4}-2$

In[10]:=

Kauffman[K][a, z]

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

Out[10]=

$z^{7}a^{-1}+z^{7}a^{-3}+5z^{6}a^{-2}+3z^{6}a^{-4}+2z^{6}+az^{5}+z^{5}a^{-1}+3z^{5}a^{-3}+3z^{5}a^{-5}-13z^{4}a^{-2}-5z^{4}a^{-4}+2z^{4}a^{-6}-6z^{4}-3az^{3}-8z^{3}a^{-1}-9z^{3}a^{-3}-3z^{3}a^{-5}+z^{3}a^{-7}+12z^{2}a^{-2}+6z^{2}a^{-4}-z^{2}a^{-6}+5z^{2}+2az+5za^{-1}+6za^{-3}+2za^{-5}-za^{-7}-6a^{-2}-3a^{-4}-2$

Vassiliev invariants

V2 and V3:

(3, 3)

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 $12$ $24$ $72$ $110$ $10$ $288$ $432$ $64$ $56$ $288$ $288$ $1320$ $120$ ${\frac {19711}{10}}$ ${\frac {618}{5}}$ ${\frac {9062}{15}}$ ${\frac {161}{6}}$ ${\frac {511}{10}}$

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 $t^{r}q^{j}$ are shown, along with their alternating sums $\chi$ (fixed $j$, alternation over $r$). The squares with yellow highlighting are those on the "critical diagonals", where $j-2r=s+1$ or $j-2r=s+1$, where $s=$2 is the signature of 8 10. Nonzero entries off the critical diagonals (if any exist) are highlighted in red.

\   r    \    j   \	-3	-2	-1	0	1	2	3	4	5	χ
13									1	-1
11								1		1
9							3	1		-2
7						2	1			1
5					2	3				1
3				3	2					1
1			1	3						2
-1		1	2							-1
-3		1								1
-5	1									-1

Computer Talk

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

${\textrm {Include}}({\textrm {ColouredJonesM.mhtml}})$

In[1]:=	<< KnotTheory`
Loading KnotTheory` (version of August 17, 2005, 14:44:34)...
In[2]:=	Crossings[Knot[8, 10]]
Out[2]=	8
In[3]:=	PD[Knot[8, 10]]
Out[3]=	PD[X[1, 4, 2, 5], X[3, 8, 4, 9], X[9, 15, 10, 14], X[5, 13, 6, 12], X[13, 7, 14, 6], X[11, 1, 12, 16], X[15, 11, 16, 10], X[7, 2, 8, 3]]
In[4]:=	GaussCode[Knot[8, 10]]
Out[4]=	GaussCode[-1, 8, -2, 1, -4, 5, -8, 2, -3, 7, -6, 4, -5, 3, -7, 6]
In[5]:=	BR[Knot[8, 10]]
Out[5]=	BR[3, {1, 1, 1, -2, 1, 1, -2, -2}]
In[6]:=	alex = Alexander[Knot[8, 10]][t]
Out[6]=	-3 3 6 2 3 -7 + t - -- + - + 6 t - 3 t + t 2 t t
In[7]:=	Conway[Knot[8, 10]][z]
Out[7]=	2 4 6 1 + 3 z + 3 z + z
In[8]:=	Select[AllKnots[], (alex === Alexander[#][t])&]
Out[8]=	{Knot[8, 10], Knot[10, 143], Knot[11, NonAlternating, 106]}
In[9]:=	{KnotDet[Knot[8, 10]], KnotSignature[Knot[8, 10]]}
Out[9]=	{27, 2}
In[10]:=	J=Jones[Knot[8, 10]][q]
Out[10]=	-2 2 2 3 4 5 6 -3 - q + - + 5 q - 4 q + 5 q - 4 q + 2 q - q q
In[11]:=	Select[AllKnots[], (J === Jones[#][q] || (J /. q-> 1/q) === Jones[#][q])&]
Out[11]=	{Knot[8, 10]}
In[12]:=	A2Invariant[Knot[8, 10]][q]
Out[12]=	-6 -2 2 4 6 8 10 12 14 18 -q - q + 2 q + q + 4 q + q + q - q - 2 q - q
In[13]:=	Kauffman[Knot[8, 10]][a, z]
Out[13]=	2 2 3 6 z 2 z 6 z 5 z 2 z 6 z -2 - -- - -- - -- + --- + --- + --- + 2 a z + 5 z - -- + ---- + 4 2 7 5 3 a 6 4 a a a a a a a 2 3 3 3 3 4 4 12 z z 3 z 9 z 8 z 3 4 2 z 5 z ----- + -- - ---- - ---- - ---- - 3 a z - 6 z + ---- - ---- - 2 7 5 3 a 6 4 a a a a a a 4 5 5 5 6 6 7 7 13 z 3 z 3 z z 5 6 3 z 5 z z z ----- + ---- + ---- + -- + a z + 2 z + ---- + ---- + -- + -- 2 5 3 a 4 2 3 a a a a a a a
In[14]:=	{Vassiliev[2][Knot[8, 10]], Vassiliev[3][Knot[8, 10]]}
Out[14]=	{0, 3}
In[15]:=	Kh[Knot[8, 10]][q, t]
Out[15]=	3 1 1 1 2 q 3 5 3 q + 3 q + ----- + ----- + ---- + --- + - + 2 q t + 2 q t + 5 3 3 2 2 q t t q t q t q t 5 2 7 2 7 3 9 3 9 4 11 4 13 5 3 q t + 2 q t + q t + 3 q t + q t + q t + q t