Results 51 to 60 of about 1,787 (166)

On marked braid groups

open access: yesJournal of Knot Theory and Its Ramifications, 2015
In this paper, we introduce [Formula: see text]-braids and, more generally, [Formula: see text]-braids for an arbitrary group [Formula: see text]. They form a natural group-theoretic counterpart of [Formula: see text]-knots, see [V. O. Manturov; Reidemeister moves and groups, preprint (2014), arXiv:1412.8691].
Fedoseev, Denis A.   +2 more
openaire   +2 more sources

Comparative Evaluation of Durability and Hygiene Between Multistrand Round Dead Soft and 8-Braid Flat Dead Soft Stainless Steel Retainer Wire

open access: yesJournal of Indian Orthodontic Society
Aim and Objectives The present study aims at evaluation and comparison of durability and hygiene between 2 different lingual retainer wires bonded between premolar to premolar, that is, maxillary or mandibular arch in the same patient.
Nitu Gautam   +5 more
doaj   +1 more source

Intersection of parabolic subgroups in Euclidean braid groups: a short proof

open access: yesComptes Rendus. Mathématique
We give a short proof for the fact, already proven by Thomas Haettel, that the arbitrary intersection of parabolic subgroups in Euclidean Braid groups $A[\tilde{A}_n]$ is again a parabolic subgroup. To that end, we use that the spherical-type Artin group
Cumplido, María   +2 more
doaj   +1 more source

Hurwitz components of groups with socle PSL(3, q)

open access: yesExtracta Mathematicae, 2021
For a finite group G, the Hurwitz space Hinr,g(G) is the space of genus g covers of the Riemann sphere P1 with r branch points and the monodromy group G. In this paper, we give a complete list of some almost simple groups of Lie rank two.
H.M. Mohammed Salih
doaj  

Security analysis of key agreement protocol based on matrix power function

open access: yesLietuvos Matematikos Rinkinys, 2012
Key agreement protocol (KAP) using Burau braid groups representation and matrix power function (MPF) is analyzed. MPF arguments are Burau representation matrices defined over finite field or ring.
Paulius Vitkus, Eligijus Sakalauskas
doaj   +1 more source

Survival analysis of three types of maxillary and mandibular bonded orthodontic retainers: a retrospective cohort

open access: yesBMC Oral Health, 2022
Background Retention is an important aspect of orthodontic treatment. This study aimed to analyze the survival of three types of maxillary and mandibular bonded orthodontic retainers.
Navid Rezaei   +2 more
doaj   +1 more source

A 3-skeleton for a classifying space for the symmetric group

open access: yesJournal of Computational Algebra
We construct a 3-dimensional cell complex that is the 3-skeleton for an Eilenberg–MacLane classifying space for the symmetric group Sn. Our complex starts with the presentation for Sn with n−1 adjacent transpositions with squaring, commuting, and braid ...
Matthew B. Day, Trevor Nakamura
doaj   +1 more source

The group of parenthesized braids

open access: yesAdvances in Mathematics, 2006
We investigate a group $B\_\bullet$ that includes Artin's braid group $B\_\infty$ and Thompson's group $F$. The elements of $B\_\bullet$ are represented by braids diagrams in which the distances between the strands are not uniform and, besides the usual crossing generators, new rescaling operators shrink or strech the distances between the strands.
openaire   +2 more sources

Machine learning of knot topology in non-Hermitian band braids

open access: yesCommunications Physics
The deep connection among braids, knots and topological physics has provided valuable insights into studying topological states in various physical systems. However, identifying distinct braid groups and knot topology embedded in non-Hermitian systems is
Jiangzhi Chen   +4 more
doaj   +1 more source

On braids and groups Gnk

open access: yesJournal of Knot Theory and Its Ramifications, 2015
In [Non-reidemeister knot theory and its applications in dynamical systems, geometry, and topology, preprint (2015), arXiv:1501.05208.] the first author gave the definition of [Formula: see text]-free braid groups [Formula: see text]. Here we establish connections between free braid groups, classical braid groups and free groups: we describe ...
Manturov, Vassily Olegovich   +1 more
openaire   +2 more sources

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