Results 21 to 30 of about 299,212 (282)

Lie subalgebras of so(3,1) up to conjugacy [PDF]

open access: yesArab Journal of Mathematical Sciences, 2022
Purpose – This study aims to find all subalgebras up to conjugacy in the real simple Lie algebra so(3,1). Design/methodology/approach – The authors use Lie Algebra techniques to find all inequivalent subalgebras of so(3,1) in all dimensions.
Ryad Ghanam   +2 more
doaj   +1 more source

COASSOCIATIVE LIE ALGEBRAS [PDF]

open access: yesGlasgow Mathematical Journal, 2013
AbstractA coassociative Lie algebra is a Lie algebra equipped with a coassociative coalgebra structure satisfying a compatibility condition. The enveloping algebra of a coassociative Lie algebra can be viewed as a coalgebraic deformation of the usual universal enveloping algebra of a Lie algebra.
Wang, Ding-Guo   +2 more
openaire   +3 more sources

LIE ALGEBRA PREDERIVATIONS AND STRONGLY NILPOTENT LIE ALGEBRAS [PDF]

open access: yesCommunications in Algebra, 2002
We study Lie algebra prederivations. A Lie algebra admitting a non-singular prederivation is nilpotent. We classify filiform Lie algebras admitting a non-singular prederivation but no non-singular derivation. We prove that any 4-step nilpotent Lie algebra admits a non-singular prederivation.
openaire   +3 more sources

From Lie algebras to Lie groups within synthetic differential geometry: Weil sprouts of Lie's third fundamental theorem [PDF]

open access: yes, 2013
Weil prolongations of a Lie group are naturally Lie groups. It is not known in the theory of in nite-dimensional Lie groups how to construct a Lie group with a given Lie algebra as its Lie algebra or whether there exists such a Lie group at all.
Nishimura, Hirokazu
core   +2 more sources

Elementary Lie Algebras [PDF]

open access: yesJournal of the London Mathematical Society, 1973
Let \(L\) be a finite dimensional Lie algebra over a field. The Frattini subalgebra, \(F(L)\), of \(L\) is the intersection of the maximal subalgebras of \(L\); the Frattini ideal, \(\varphi(L)\), of \(L\) is then the largest ideal of \(L\) contained in \(F(L)\).
openaire   +2 more sources

Post-Lie Algebra Structures on the Lie Algebra gl(2,C)

open access: yesAbstract and Applied Analysis, 2013
The post-Lie algebra is an enriched structure of the Lie algebra. We give a complete classification of post-Lie algebra structures on the Lie algebra gl(2,C) up to isomorphism.
Yuqiu Sheng, Xiaomin Tang
doaj   +1 more source

Quasiclassical Lie Algebras

open access: yesJournal of Algebra, 2001
The authors consider associative algebras with involution. Denote by \(*\) the fixed involution of an associative algebra \(A\) over an algebraically closed field \(\mathbb{F}\) of characteristic zero and denote by \({\mathfrak u}^*(A)\) the vector space of skew-symmetric elements of \(A\) (i.e. \({\mathfrak u}^*(A)=\{a\in A\mid a^*=-a\}\)).
Baranov, AA, Zalesskii, AE
openaire   +2 more sources

Lie Algebra Multiplicities [PDF]

open access: yesProceedings of the American Mathematical Society, 1979
Exact formulas for root space multiplicities in Cartan matrix Lie algebras and their universal enveloping algebras are computed. We go on to determine the number of free generators of each degree of the radicals defining these algebras.
Berman, Stephen, Moody, Robert V.
openaire   +1 more source

Nilpotent Lie algebras of derivations with the center of small corank

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
Let $\mathbb K$ be a field of characteristic zero, $A$ be an integral domain over $\mathbb K$ with the field of fractions $R=Frac(A),$ and $Der_{\mathbb K}A$ be the Lie algebra of all $\mathbb K$-derivations on $A$. Let $W(A):=RDer_{\mathbb K} A$ and $L$
Y.Y. Chapovskyi   +2 more
doaj   +1 more source

Lie Bialgebras on the Rank Two Heisenberg–Virasoro Algebra

open access: yesMathematics, 2023
The rank two Heisenberg–Virasoro algebra can be viewed as a generalization of the twisted Heisenberg–Virasoro algebra. Lie bialgebras play an important role in searching for solutions of quantum Yang–Baxter equations.
Yihong Su, Xue Chen
doaj   +1 more source

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