New Invariant Quantity To Measure The Entanglement In The Braids

In this work, we demonstrate  that the integral formula for a generalised Sato-Levine invariant is consistent in certain situations with Evans and Berger's formula for the fourth-order winding number. Also, we found that, in principle, one can derive analogous  high-order winding numbers by wh...

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Bibliographic Details
Main Authors: Faik Mayah, Nisreen Alokbi, Ali Sabeeh Rasheed
Format: Article
Language:English
Published: Nigerian Society of Physical Sciences 2022-10-01
Series:Journal of Nigerian Society of Physical Sciences
Subjects:
Online Access:https://journal.nsps.org.ng/index.php/jnsps/article/view/1051
Description
Summary:In this work, we demonstrate  that the integral formula for a generalised Sato-Levine invariant is consistent in certain situations with Evans and Berger's formula for the fourth-order winding number. Also, we found that, in principle, one can derive analogous  high-order winding numbers by which one can calculate the entanglement of braids. The winding number for the Brunnian 4-braid is calculated algebraically using the cup product  on the cohomology of a finite regular CW-space which is the complement $\mathbb{R}^3\backslash \mathcal{B}_4$.
ISSN:2714-2817
2714-4704