Read More
Date: 15-8-2021
![]()
Date: 26-6-2021
![]()
Date: 22-6-2021
![]() |
![]() |
![]() |
The stevedore's knot is the 6-crossing prime knot . It is implemented in the Wolfram Language as KnotData["Stevedore"].
It has braid word . It has Arf invariant 0 and is not amphichiral, although it is invertible. It is a slice knot (Rolfsen 1976, p. 225).
The Alexander polynomial , BLM/Ho polynomial
, Conway polynomial
, HOMFLY polynomial
, and Jones polynomial
of Stevedore's knot are
![]() |
![]() |
![]() |
(1) |
![]() |
![]() |
![]() |
(2) |
![]() |
![]() |
![]() |
(3) |
![]() |
![]() |
![]() |
(4) |
![]() |
![]() |
![]() |
(5) |
Surprisingly, the knot 09-046 shares the same Alexander polynomial with the stevedore's knot. However, no knots on 10 or fewer crossings share the same BLM/Ho polynomial or Jones polynomial with it.
REFERENCES:
Bar-Natan, D. "The Knot ." https://www.math.toronto.edu/~drorbn/KAtlas/Knots/6.1.html.
KnotPlot. "." https://newweb.cecm.sfu.ca/cgi-bin/KnotPlot/KnotServer/kserver?ncomp=1&ncross=6&id=1.
Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, p. 225, 1976.
|
|
دخلت غرفة فنسيت ماذا تريد من داخلها.. خبير يفسر الحالة
|
|
|
|
|
ثورة طبية.. ابتكار أصغر جهاز لتنظيم ضربات القلب في العالم
|
|
|
|
|
سماحة السيد الصافي يؤكد ضرورة تعريف المجتمعات بأهمية مبادئ أهل البيت (عليهم السلام) في إيجاد حلول للمشاكل الاجتماعية
|
|
|