Results 91 to 100 of about 29,270 (226)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Geometrically nonlinear static analysis of materially imperfect composite doubly curved shells is investigated via the generalised differential quadrature method. The effects of both shear and thickness deformation are considered through a thickness‐ and shear‐deformable third‐order theory formulated in curvilinear coordinates, while the ...
Behrouz Karami +3 more
wiley +1 more source
Noncommutative Root Space Witt, Ricci Flow, and Poisson Bracket Continual Lie Algebras
Symmetry, Integrability and Geometry: Methods and Applications, 2009 We introduce new examples of mappings defining noncommutative root space generalizations for the Witt, Ricci flow, and Poisson bracket continual Lie algebras.
Alexander Zuevsky
doaj +1 more source
Extended Symmetries and Poisson Algebras Associated to Twisted Dirac Structures [PDF]
, 2012 In this paper we study the relationship between the extended symmetries of exact Courant algebroids over a manifold $M$, defined by Bursztyn, Cavalcanti and Gualtieri, and the Poisson algebras of admissible functions associated to twisted Dirac ...
Cardona, Alexander
core
Polymer Composites, EarlyView.Schematic representation of hemp‐, glass‐, and carbon‐based laminated composite curved beams, including different stacking sequences and their vibration response. ABSTRACT In recent years, increasing environmental awareness has stimulated growing interest in natural fiber‐reinforced composites (NFRCs) due to their eco‐friendly composition ...
Aykut Çetin, Hasan Kurtaran
wiley +1 more source
Star-products for Lie-algebraic noncommutative Minkowski space-times
Journal of High Energy PhysicsPoisson structures of the Poincaré group can be linked to deformations of the Minkowski space-time, classified some time ago by Zakrewski. Based on this classification, various quantum Minkowski space-times with coordinates Lie algebras and specific ...
Valentine Maris +2 more
doaj +1 more source
Poisson–Lie identities and dualities of Bianchi cosmologies
European Physical Journal C: Particles and Fields, 2019 We investigate a special class of Poisson–Lie T-plurality transformations of Bianchi cosmologies invariant with respect to non-semisimple Bianchi groups. For six-dimensional semi-Abelian Manin triples $$\mathfrak {b}\bowtie \mathfrak {a}$$ b⋈a containing
Ladislav Hlavatý, Ivo Petr
doaj +1 more source
The κ-Newtonian and κ-Carrollian algebras and their noncommutative spacetimes
Physics Letters B, 2020 We derive the non-relativistic c→∞ and ultra-relativistic c→0 limits of the κ-deformed symmetries and corresponding spacetime in (3+1) dimensions, with and without a cosmological constant.
Angel Ballesteros +3 more
doaj +1 more source
ORE EXTENSIONS AND POISSON ALGEBRAS [PDF]
Glasgow Mathematical Journal, 2013 AbstractFor a derivation δ of a commutative Noetherian ${\mathbb C}$-algebra A, a homeomorphism is established between the prime spectrum of the Ore extension A[z;δ] and the Poisson prime spectrum of the polynomial algebra A[z] endowed with the Poisson bracket such that {A,A}=0 and {z,a}=δ(a) for all a ∈ A.
openaire +2 more sources
High Voltage, EarlyView.ABSTRACT Structural mechanics field simulation plays a critical role in the vibration characteristic analysis of electrical equipment. Existing structural field analysis of equipment based on numerical simulation faces challenges such as convergence difficulties and prolonged computational time, failing to meet the demand for real‐time prediction of ...
Wanqing Wang +6 more
wiley +1 more source
, 2018 The focus of this thesis is to introduce the concept of Kähler-Poisson algebras as analogues of algebras of smooth functions on Kähler manifolds. We first give here a review of the geometry of Kähler manifolds and Lie-Rinehart algebras. After that we give the definition and basic properties of Kähler-Poisson algebras.
openaire +6 more sources