Results 61 to 70 of about 349 (256)

Jordan automorphisms of triangular algebras II [PDF]

Commentationes Mathematicae Universitatis Carolinae, 2015
Summary: We give a sufficient condition under which any Jordan automorphism of a triangular algebra is either an automorphism or an anti-automorphism.
Aiat Hadj, Driss Ahmed, Tribak, Rachid
openaire   +2 more sources

A Branch‐and‐Price Algorithm for the Symmetric Electric Traveling Salesman Problem

Networks, EarlyView.
ABSTRACT The Electric Traveling Salesman Problem (ETSP) is a variant of the well‐known TSP in which an electric vehicle must visit a set of customers minimizing the total cost of its route. The vehicle is assumed to be equipped with a battery of limited capacity that may need to be recharged along the route.
Alberto Ceselli, Cristina Ondei, Giovanni Righini   +2 more
wiley   +1 more source

CSRcalculator: A reproducible framework for understanding plant ecological strategies

PLANTS, PEOPLE, PLANET, EarlyView.
Understanding how plants respond to environmental change is essential for conserving biodiversity and managing ecosystems under climate change. We developed CSRcalculator, an open‐source platform that brings together major competitor, stress‐tolerator, ruderal (CSR) models to make ecological strategy classification accessible, reproducible and scalable.
Teddy Gaskin, Ben Crick, Manny Wright, Amanda P. Cavanagh, Katharina Huber, Zoran Nikoloski, John N. Ferguson   +6 more
wiley   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Images of Generalized Multilinear Polynomials on Upper Triangular Matrix Algebras

Axioms
A polynomial is called a generalized multilinear polynomial if it is a sum of some multilinear polynomials over a field. The goal of this paper is to give a description of the images of generalized multilinear polynomials on upper triangular matrix ...
Qian Chen, Yu Wang
doaj   +1 more source

Triangular Decomposition of the Composition Algebra of the Kronecker Algebra

Journal of Algebra, 1996
Let \(K\) be a finite field and let \(R\) be a finite dimensional \(K\)-algebra. Denote by \(S_1,\ldots,S_n\) a complete set of pairwise non-isomorphic simple right \(R\)-modules. Given a finite right \(R\)-module \(M\) we denote by \(\mathbf{dim} M=(m_1,\dots,m_n)\) the dimension vector of \(M\) in \(\mathbb{Z}^n\), that is the coordinate \(m_j\) is ...
openaire   +1 more source

On Derivations of Certain Algebras Related to Irreducible Triangular Algebras [PDF]

Transactions of the American Mathematical Society, 1983
This paper deals with derivations on algebras that are generated by a maximal abelian selfadjoint algebra of operators A \mathcal {A}
openaire   +2 more sources

High‐Order Sliding‐Mode control for MIMO Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper extends Lyapunov‐based homogeneous high‐order sliding‐mode control to a class of uncertain non‐square multi‐input multi‐output (MIMO) nonlinear systems with a well‐defined vector relative degree. The considered systems admit a normal‐form representation with an uncertain but full‐row‐rank input‐gain matrix.
Jaime A. Moreno, Angel Mercado‐Uribe
wiley   +1 more source

Classical R-Operators and Integrable Generalizations of Thirring Equations

Symmetry, Integrability and Geometry: Methods and Applications, 2008
We construct different integrable generalizations of the massive Thirring equations corresponding loop algebras g^σ in different gradings and associated ''triangular'' R-operators.
Taras V. Skrypnyk
doaj   +1 more source

Non-finitary Generalizations of Nil-triangular Subalgebras of Chevalley Algebras

Известия Иркутского государственного университета: Серия "Математика", 2019
Let $N\Phi(K)$ be a niltriangular subalgebra of Chevalley algebra over a field or ring $K$ associated with root system $\Phi$ of classical type. For type $A_{n-1}$ it is associated to algebra $NT(n,K)$ of (lower) nil-triangular $n \times n$- matrices ...
J. V. Bekker, V. M. Levchuk, E. A. Sotnikova   +2 more
doaj   +1 more source