Results 41 to 50 of about 251,425 (180)
A note on the Lawrence-Krammer-Bigelow representation
, 2002 A very popular problem on braid groups has recently been solved by Bigelow and Krammer, namely, they have found a faithful linear representation for the braid group B_n.
Fadell +5 more
core +4 more sources
The faithfulness question for the Burau representation [PDF]
Proceedings of the American Mathematical Society, 1993 We consider the Burau and Gassner representations of the braid groups B n {B_n} . A sufficient condition for faithfulness, involving just a pair of arcs, is shown to be necessary as well for all but at most two values of n n . In the Burau case, this implies nonfaithfulness for
openaire +1 more source
On cospectrality of gain graphs
Special Matrices, 2022 We define GG-cospectrality of two GG-gain graphs (Γ,ψ)\left(\Gamma ,\psi ) and (Γ′,ψ′)\left(\Gamma ^{\prime} ,\psi ^{\prime} ), proving that it is a switching isomorphism invariant.
Cavaleri Matteo, Donno Alfredo
doaj +1 more source
Forks, Noodles and the Burau representation for $n=4$
, 2018 \begin{abstract} The reduced Burau representation is a natural action of the braid group $B_n$ on the first homology group $H_1({\tilde{D}}_n;\mathbb{Z})$ of a suitable infinite cyclic covering space ${\tilde{D}}_n$ of the $n$--punctured disc $D_n$.
Beridze, A., Traczyk, P.
core +1 more source
Unitary representability of free abelian topological groups
Applied General Topology, 2008 For every Tikhonov space X the free abelian topological group A(X) and the free locally convex vector space L(X) admit a topologically faithful unitary representation. For compact spaces X this is due to Jorge Galindo.
Vladimir V. Uspenskij
doaj +1 more source
Towards database support for moving object data [PDF]
, 2005 To narrow down moving object challenges, the focus of this thesis is on four issues, namely, uncertainty handling for moving object data, faithful trajectory representation, trajectory compression techniques, and similarity measures for ...
Meratnia, Nirvana
core +3 more sources
The Quality of Accounting Information: Relevance or Value-Relevance?
Asian Journal of Accounting Perspectives, 2019 Research aim: This paper critically evaluates the qualitative characteristics of accounting information that can be drawn from the Financial Accounting Standard Board (FASB)/International Accounting Standard Board (IASB) Conceptual Framework and Value ...
Nasrin Azar +2 more
doaj +2 more sources
QUASI-PERMUTATION REPRESENTATIONS OF SUZtTKI GROUP [PDF]
Journal of Sciences, Islamic Republic of Iran, 1999 By a quasi-permutation matrix we mean a square matrix over the complex field C with non-negative integral trace. Thus every permutation matrix over C is a quasipermutation matrix.
doaj
Representations of Braid Groups and Generalisations [PDF]
, 2007 We define and study extensions of Artin's representation and braid monodromy representation to the case of topological and algebraical generalisations of braid groups. In particular we provide faithful representations of braid groups of oriented surfaces
Bardakov, Valerij G., Bellingeri, Paolo
core +4 more sources
QUASI-PERMUTATION REPRESENTATIONS OF METACYCLIC 2-GROUPS [PDF]
Journal of Sciences, Islamic Republic of Iran, 1998 By a quasi-permutation matrix we mean a square matrix over the complex field C with non-negative integral trace. Thus, every permutation matrix over C is a quasipermutation matrix.
doaj