Results 111 to 120 of about 886,706 (230)

Co-rotational 3D shell element using quaternion algebra to account for large rotations: Static and dynamic applications

Forces in Mechanics
This paper presents a new co-rotational shell element based on quaternion algebra as a means of parameterizing large rotations. The co-rotational framework is suitable for beam or shell elements and has been extensively studied in the literature.
Stéphane Grange, David Bertrand
doaj   +1 more source

Generalized Lie derivations on triangular algebras

Linear Algebra and its Applications, 2011
A linear map \(f\) from an algebra \(A\) into an \(A\)-bimodule \(M\) is called a generalized Lie derivation is there exists a map \(d\colon A\to M\) such that \(f(xy-yx)=f(x)y-f(y)x+xd(y)-yd(x)\) for all \(x,y\in A\). The main theorem describes the structure of such maps on algebras satisfying certain technical conditions.
openaire   +2 more sources

Computing abelian subalgebras for linear algebras of upper-triangular matrices from an algorithmic perspective

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this paper, the maximal abelian dimension is algorithmically and computationally studied for the Lie algebra hn, of n×n upper-triangular matrices. More concretely, we define an algorithm to compute abelian subalgebras of hn besides programming its ...
Ceballos Manuel, Núñez Juan, Tenorio Ángel F.   +2 more
doaj   +1 more source

$M$-ideals and quasi-triangular algebras

Illinois Journal of Mathematics, 1987
If \({\mathcal P}\) is a linearly ordered set of projections on a Hilbert space and \({\mathcal K}\) is the ideal of compact operators, then \(\text{Alg}\, {\mathcal P}+{\mathcal K}\) is the quasi-triangular algebra associated with \({\mathcal P}.\) We show that \((\text{Alg}\,{\mathcal P}+{\mathcal K})/\text{Alg}\,{\mathcal P}\) is an M-ideal in ...
openaire   +3 more sources

Triangular braidings and pointed Hopf algebras

Journal of Pure and Applied Algebra, 2007
20 ...
openaire   +2 more sources

Identities with involution for 2 × 2 upper triangular matrices algebra over a finite field

, 2018
Ronald Ismael Quispe Urure, D. Gonçalves   +1 more
semanticscholar   +1 more source

Group gradings on the Lie algebra of upper triangular matrices

, 2017
P. Koshlukov, Felipe Yukihide
semanticscholar   +1 more source

The group of braided autoequivalences of the category of comodules over a coquasi-triangular Hopf algebra

, 2017
Hai-xing Zhu
semanticscholar   +1 more source

On Weak Generalized Amenability of Triangular Banach Algebras

Journal of Mathematical Extension, 2014
Let A1, A2 be unital Banach algebras and X be an A1 − A2− module. Applying the concept of module maps, (inner) module generalized derivations and generalized first cohomology groups, we present several results concerning the relations between module ...
M. Mosadeq
doaj  

Interpretability and Representability of Commutative Algebra, Algebraic Topology, and Topological Spectral Theory for Real-World Data. [PDF]

Adv Intell Discov
Ren Y, Wei GW.
europepmc   +1 more source