Results 31 to 40 of about 2,503,474 (234)

Chimera state in coupled map lattice of matrices

open access: yesLietuvos Matematikos Rinkinys, 2021
In recent years, a lot of research has focused on understanding the behavior of when synchronous and asynchronous phases occur, that is, the existence of chimera states in various networks.
Kotryna Mačernytė, Rasa Šmidtaitė
doaj   +1 more source

Zero-sum triangles for involutory, idempotent, nilpotent and unipotent matrices

open access: yesResults in Applied Mathematics, 2022
In some matrix formations, factorizations and transformations, we need special matrices with some properties and we wish that such matrices should be easily and simply generated and of integers.
Pengwei Hao, Chao Zhang, Huahan Hao
doaj   +1 more source

A Matrix Model for Random Nilpotent Groups [PDF]

open access: yesInternational Mathematics Research Notices, 2017
We study random torsion-free nilpotent groups generated by a pair of random words of length $\ell$ in the standard generating set of $U_n(\mathbb{Z})$. Specifically, we give asymptotic results about the step properties of the group when the lengths of the generating words are functions of $n$.
Delp, Kelly   +2 more
openaire   +2 more sources

The Enumeration of Jordan′s Normal Form of k-nilpotent Matrices

open access: yesJournal of Harbin University of Science and Technology, 2019
As a kind of special matrices, the nilpotent matrices has good properties. In this paper, we mainly discuss the enumeration problem of the Jordan′s normal form of 4-nilpotent matrix.
CHEN Jian-da, WANG Ping, ZHANG Lu
doaj   +1 more source

Finite W-algebras for glN [PDF]

open access: yes, 2018
We study the quantum finite W -algebras W (glN, f ), associ-ted to the Lie algebra glN, and its arbitrary nilpotent element f . We construct for such an algebra an r1× r1 matrix L(z) of Yangian type, where r1 is the number of maximal parts of the ...
De Sole, Alberto   +2 more
core   +1 more source

The Zakharov–Shabat Spectral Problem for Complexification and Perturbation of the Korteweg–de Vries Equation

open access: yesAxioms, 2023
In this paper we consider examples of complex expansion (cKdV) and perturbation (pKdV) of the Korteweg–de Vries equation (KdV) and show that these equations have a representation in the form of the zero-curvature equation.
Tatyana V. Redkina   +2 more
doaj   +1 more source

On Cohomology Groups of Four-Dimensional Nilpotent Associative Algebras

open access: yesمجلة بغداد للعلوم, 2022
The study of cohomology groups is one of the most intensive and exciting researches that arises from algebraic topology. Particularly, the dimension of cohomology groups is a highly useful invariant which plays a rigorous role in the geometric ...
N. F. Mohammed   +2 more
doaj   +1 more source

Singular matrices that are products of two idempotents or products of two nilpotents

open access: yesSpecial Matrices, 2021
Over commutative domains we characterize the singular 2 × 2 matrices which are products of two idempotents or products of two nilpotents. The relevant casees are the matrices with zero second row and the singular matrices with only nonzero entries.
Călugăreanu Grigore
doaj   +1 more source

Free products of cyclic groups in groups of infinite unitriangular matrices

open access: yesМатематичні Студії, 2023
Groups of infinite unitriangular matrices over associative unitary rings are considered. These  groups naturally act on infinite dimensional free modules over underlying rings. They are profinite in case underlying rings are finite.
A. Oliynyk
doaj   +1 more source

Novikov structures on solvable Lie algebras [PDF]

open access: yes, 2005
We study Novikov algebras and Novikov structures on finite-dimensional Lie algebras. We show that a Lie algebra admitting a Novikov structure must be solvable.
Bakalov   +14 more
core   +2 more sources

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