7 6: Difference between revisions

From Knot Atlas
Jump to navigationJump to search
No edit summary
No edit summary
Line 5: Line 5:
{{Knot Presentations|name=7_6}}
{{Knot Presentations|name=7_6}}
{{3D Invariants|name=7_6}}
{{3D Invariants|name=7_6}}
{{Polynomial Invariants|name=7_6}}
===Polynomial invariants===
{| style="margin-left: 1em;"
|-
|'''[[The Jones Polynomial|Jones polynomial]]'''
|style="padding-left: 1em;" | {{Data:7_6/Jones Polynomial}}
|-
|'''[[The Alexander-Conway Polynomial|Alexander polynomial]]'''
|style="padding-left: 1em;" | {{Data:7_6/Alexander Polynomial}}
|-
|'''[[The Alexander-Conway Polynomial|Conway polynomial]]'''
|style="padding-left: 1em;" | {{Data:7_6/Conway Polynomial}}
|-
|'''[[The Determinant and the Signature|Determinant]]'''
|style="padding-left: 1em;" | {{Data:7_6/Determinant}}
|-
|'''[[The Determinant and the Signature|Signature]]'''
|style="padding-left: 1em;" | {{Data:7_6/Signature}}
|-
|'''[[The HOMFLY-PT Polynomial|HOMFLY-PT polynomial]]'''
|style="padding-left: 1em;" | {{Data:7_6/HOMFLYPT Polynomial}}
|-
|'''[[The Kauffman Polynomial|Kauffman polynomial]]'''
|style="padding-left: 1em;" | {{Data:7_6/Kauffman Polynomial}}
|-
| ([[Viewing Knot Invariants in Other Formats|other formats]])
|}
{{Vassiliev Invariants|name=7_6}}
{{Vassiliev Invariants|name=7_6}}
{{Khovanov Invariants|name=7_6}}
{{Khovanov Invariants|name=7_6}}

Revision as of 17:24, 25 August 2005

[[Image:7_5.{{{ext}}}|80px|link=7_5]]

7_5

[[Image:7_7.{{{ext}}}|80px|link=7_7]]

7_7

Visit 7 6's page at the Knot Server (KnotPlot driven, includes 3D interactive images!)

Visit [{{{KnotilusURL}}} 7 6's page] at Knotilus!

Visit 7 6's page at the original Knot Atlas!

Knot presentations

Planar diagram presentation X1425 X3849 X5,12,6,13 X9,1,10,14 X13,11,14,10 X11,6,12,7 X7283
Gauss code -1, 7, -2, 1, -3, 6, -7, 2, -4, 5, -6, 3, -5, 4
Dowker-Thistlethwaite code 4 8 12 2 14 6 10
Conway Notation [2212]

Three dimensional invariants

Symmetry type Reversible
Unknotting number 1
3-genus 2
Bridge index 2
Super bridge index 4
Nakanishi index 1
Maximal Thurston-Bennequin number [-8][-1]
Hyperbolic Volume 7.08493
A-Polynomial See Data:7 6/A-polynomial

[edit Notes for 7 6's three dimensional invariants]

Polynomial invariants

Jones polynomial [math]\displaystyle{ q-2+3 q^{-1} -3 q^{-2} +4 q^{-3} -3 q^{-4} +2 q^{-5} - q^{-6} }[/math]
Alexander polynomial [math]\displaystyle{ -t^2- t^{-2} +5 t+5 t^{-1} -7 }[/math]
Conway polynomial [math]\displaystyle{ -z^4+z^2+1 }[/math]
Determinant 19
Signature -2
HOMFLY-PT polynomial [math]\displaystyle{ -a^6+2 a^4 z^2+2 a^4-a^2 z^4-2 a^2 z^2-a^2+z^2+1 }[/math]
Kauffman polynomial [math]\displaystyle{ a^7 z^3-a^7 z+2 a^6 z^4-2 a^6 z^2+a^6+2 a^5 z^5-a^5 z^3+a^4 z^6+2 a^4 z^4-4 a^4 z^2+2 a^4+4 a^3 z^5-6 a^3 z^3+2 a^3 z+a^2 z^6+a^2 z^4-4 a^2 z^2+a^2+2 a z^5-4 a z^3+a z+z^4-2 z^2+1 }[/math]
(other formats)

Vassiliev invariants

V2 and V3: (1, -2)
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
[math]\displaystyle{ 4 }[/math] [math]\displaystyle{ -16 }[/math] [math]\displaystyle{ 8 }[/math] [math]\displaystyle{ \frac{158}{3} }[/math] [math]\displaystyle{ \frac{34}{3} }[/math] [math]\displaystyle{ -64 }[/math] [math]\displaystyle{ -\frac{544}{3} }[/math] [math]\displaystyle{ -\frac{64}{3} }[/math] [math]\displaystyle{ -48 }[/math] [math]\displaystyle{ \frac{32}{3} }[/math] [math]\displaystyle{ 128 }[/math] [math]\displaystyle{ \frac{632}{3} }[/math] [math]\displaystyle{ \frac{136}{3} }[/math] [math]\displaystyle{ \frac{19471}{30} }[/math] [math]\displaystyle{ -\frac{474}{5} }[/math] [math]\displaystyle{ \frac{17342}{45} }[/math] [math]\displaystyle{ \frac{401}{18} }[/math] [math]\displaystyle{ \frac{1711}{30} }[/math]

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.

Template:Khovanov Invariants Template:Quantum Invariants