Results 51 to 60 of about 823,346 (364)

Some Results about Triangular Representations of Lie Algebras [PDF]

open access: yes, 2014
We introduce the concept of a triangular representation of a Lie algebra, give a counterpart of Ado's theorem, and discuss $2$-irreducible triangular modules over a nonreductive Lie ...
Liu, Keqin
core  

Non-standard quantum so(3,2) and its contractions

open access: yes, 1997
A full (triangular) quantum deformation of so(3,2) is presented by considering this algebra as the conformal algebra of the 2+1 dimensional Minkowskian spacetime.
Bacry H   +10 more
core   +2 more sources

Preventing and Recovering Food Waste in Manufacturing Firms: A Contingency Perspective on Circular Economy Practices

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Food waste is a sustainability concern in the food industry, which can be mitigated through a circular economy. Circularity can be limited by contextual constraints, such as the characteristics of the waste to be recovered. However, their study in the context of food waste is scarce.
Stella Viscardi   +2 more
wiley   +1 more source

Unitary Irreducible Representations of a Lie Algebra for Matrix Chain Models

open access: yes, 2001
There is a decomposition of a Lie algebra for open matrix chains akin to the triangular decomposition. We use this decomposition to construct unitary irreducible representations. All multiple meson states can be retrieved this way. Moreover, they are the
Jakobsen, H. P., Lee, C. -W. H.
core   +1 more source

Algebraic and Triangular n-Hyponormal Operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1995
In this paper we shall prove that if an operator T ∈ L ( ⊕ 1 n H ) T \in \mathcal {L}( \oplus _1^n{\mathbf {H}}) is a finite triangular operator matrix with hyponormal operators on main diagonal, then T ...
openaire   +1 more source

Coordinates for triangular operator algebras. II [PDF]

open access: yesPacific Journal of Mathematics, 1989
Write \({\mathcal M}\) for the full algebra of complex \(n\times n\) matrices, \({\mathcal A}\) for its subalgebra of diagonal matrices, and \({\mathcal P}\) for the intermediate algebra of upper-triangular matrices. Fix \(\delta\) in \({\mathcal A}\) with strictly decreasing real diagonal entries and define a group of automorphisms of \({\mathcal M}\)
Muhly, Paul S.   +2 more
openaire   +2 more sources

Local realities, global discourses and decolonising the curriculum in a post‐92 UK context: Academic voices on enacting decolonial curriculum change

open access: yesThe Curriculum Journal, EarlyView.
Abstract This study explored how lecturers in a post‐92 UK university conceptualise and enact decolonial curriculum principles within their teaching and programme design. Drawing on semi‐structured interviews with academic staff across multiple disciplines, the research adopts a qualitative, phenomenologically informed approach to examine the interplay
Reece Sohdi
wiley   +1 more source

No-go theorems for r-matrices in symplectic geometry

open access: yesCommunications in Analysis and Mechanics
If a triangular Lie algebra acts on a smooth manifold, it induces a Poisson bracket on it. In case this Poisson structure is actually symplectic, we show that this already implies the existence of a flat connection on any vector bundle over the manifold ...
Jonas Schnitzer
doaj   +1 more source

On Jordan triple (σ,τ)-higher derivation of triangular algebra

open access: yesSpecial Matrices, 2018
Let R be a commutative ring with unity, A = Tri(A,M,B) be a triangular algebra consisting of unital algebras A,B and (A,B)-bimodule M which is faithful as a left A-module and also as a right B-module.
Ashraf Mohammad   +2 more
doaj   +1 more source

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

open access: yesИзвестия 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   +2 more
doaj   +1 more source

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