Results 121 to 130 of about 519,562 (333)

SEMIPRIME AND NILPOTENT FUZZY LIE ALGEBRAS

open access: yesJournal of New Theory, 2016
– In this paper, we have introduced the concept of semiprime fuzzy Lie algebra and proved that every fuzzy Lie algebra of semiprime (nilpotent) Lie algebra is a semiprime (nilpotent)
Nour Alhouda Alhayek, Samer Sukkary
doaj  

Lie triple system central extensions of Lie algebras [PDF]

open access: yesarXiv, 2010
Three kinds of universal central extension are considered for a perfect Lie algebra. More precisely, one can consider such a Lie algebra as a Lie triple system, or a Leibniz algebra and construct appropriate central extensions. We show that Lie triple system universal central extension is isomorphic either to Lie or Leibniz algebra universal central ...
arxiv  

Full‐order observer design for quadratic port‐controlled Hamiltonian systems

open access: yesAsian Journal of Control, EarlyView.
Abstract The full‐order observer design problem for a particular class of port‐controlled Hamiltonian systems is approached in this paper. The proposed full‐order observer scheme belongs to the structure preserving class of dynamic estimators as it preserves the natural stability properties of the approached class of systems that are useful for the ...
Michael Rojas   +2 more
wiley   +1 more source

Note on algebraic Lie algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
It is shown that, over an algebraically closed field of characteristic 0, the isomorphism classes of algebraic Lie algebras are in bijective correspondence with the isomorphism classes of affine algebraic groups with unipotent centers. A Lie algebra is said to be algebraic if it is isomorphic with the Lie algebra of an affine algebraic group.
openaire   +2 more sources

Stereodynamism in chiral polyaromatic phosphepines

open access: yesChemistry – A European Journal, Accepted Article.
In the present experimental‐computational study, we demonstrate that the stereodynamism of phosphahelicenoid can be used to afford diastereoisomers of polyaromatics fused with a chiral phosphepine (7‐membered P‐ring). In particular, we highlight a complex interplay between the inversion at the P centre and helicenoid epimerization as well as a ...
Mengling Lyu   +7 more
wiley   +1 more source

Two‐phase model for the excavation analysis in partially saturated soft soils using the particle finite element method

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 47, Issue 2, Page 145-186, 10 February 2023., 2023
Abstract A two‐phase velocity‐pressure stabilized formulation is proposed for the numerical analysis of mechanized excavations in partially saturated soft soils using the Particle Finite Element Method (PFEM). The fully coupled formulation is based on the theory of porous media in association with the Soil Water Characteristic Curve and the porosity ...
Abdiel Ramon Leon Bal, Günther Meschke
wiley   +1 more source

Commutative post-Lie algebra structures on Lie algebras [PDF]

open access: yesarXiv, 2015
We show that any CPA-structure (commutative post-Lie algebra structure) on a perfect Lie algebra is trivial. Furthermore we give a general decomposition of inner CPA-structures, and classify all CPA-structures on parabolic subalgebras of simple Lie algebras.
arxiv  

Corn cob pyrolysis: A systematic literature review of methods and applications

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Mapping the research landscape of corn cob pyrolysis. Abstractas The agricultural sector is experiencing a surge in waste generation due to population growth, creating an urgent need to convert byproducts into value‐added products. Maize (Zea mays L.), a leading global crop, produces significant byproducts, such as corn cob, which are often undervalued.
Vilmar Steffen   +5 more
wiley   +1 more source

Optimal deployment of indoor wireless local area networks

open access: yesNetworks, Volume 81, Issue 1, Page 23-50, January 2023., 2023
Abstract We present a two‐phase methodology to address the problem of optimally deploying indoor wireless local area networks. In the first phase, we use Helmholtz's equation to simulate electromagnetic fields in a typical environment such as an office floor.
Antoine Oustry   +4 more
wiley   +1 more source

Prolongations of Lie Algebra Representations [PDF]

open access: yesAdvances and applications in mathematical sciences, vol:10, issue 5, 533-542, 2011, 2013
In this paper, we present a study on the prolongations of representations of Lie algebras. We show that a tangent bundle of a given Lie algebra attains a Lie algebra structure. Then, we prove that this tangent bundle is algebraically isomorphic to the Lie algebra of a tangent bundle of a Lie group.
arxiv  

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