Results 11 to 20 of about 1,281,981 (325)

Group gradings on finitary simple Lie algebras [PDF]

open access: yesInternational Journal of Algebra and Computation, 2012
We classify, up to isomorphism, all gradings by an arbitrary abelian group on simple finitary Lie algebras of linear transformations (special linear, orthogonal and symplectic) on infinite-dimensional vector spaces over an algebraically closed field of ...
Bahturin Y.   +7 more
core   +2 more sources

Character estimates of adjoint simple Lie groups [PDF]

open access: bronzeJournal of Group Theory, 2014
Abstract Call a compact, connected, simple Lie group G adjoint simple if it has trivial center. Let C ⊂ G be a nontrivial conjugacy class, e ∈ G the identity element of G. We prove the existence of a bound N ∈ ℕ, depending on G but not C, such that e lies in the interior of Cn for all n ≥ N.
Corey Manack
openalex   +4 more sources

Expansion in finite simple groups of Lie type [PDF]

open access: greenJournal of the European Mathematical Society, 2013
We show that random Cayley graphs of finite simple (or semisimple) groups of Lie type of fixed rank are expanders. The proofs are based on the Bourgain-Gamburd method and on the main result of our companion paper [BGGT].
Emmanuel Breuillard   +3 more
openalex   +5 more sources

On Reidemeister torsion of flag manifolds of compact semisimple Lie groups

open access: yesAIMS Mathematics, 2020
In this paper we calculate Reidemeister torsion of flag manifold $K/T$ of compact semi-simple Lie group $K=SU_{n+1}$ using Reidemeister torsion formula and Schubert calculus, where $T$ is maximal torus of $K$. We find that this number is 1.
Cenap Özel   +5 more
doaj   +1 more source

The maximal size of a minimal generating set

open access: yesForum of Mathematics, Sigma, 2023
A generating set for a finite group G is minimal if no proper subset generates G, and $m(G)$ denotes the maximal size of a minimal generating set for G. We prove a conjecture of Lucchini, Moscatiello and Spiga by showing that there exist $a,b>
Scott Harper
doaj   +1 more source

The index of compact simple Lie groups [PDF]

open access: yes, 2017
Fil: Olmos, Carlos Enrique. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Estudios de Matemática. Universidad Nacional de Córdoba.
Berndt, Jurgen, Olmos, Carlos
openaire   +5 more sources

Decomposition numbers for perverse sheaves [PDF]

open access: yes, 2008
The purpose of this article is to set foundations for decomposition numbers of perverse sheaves, to give some methods to calculate them in simple cases, and to compute them concretely in two situations: for a simple (Kleinian) surface singularity, and ...
Juteau, Daniel
core   +3 more sources

On the Fundamental Group of a Simple Lie Group [PDF]

open access: yesNagoya Mathematical Journal, 1970
Let G be a simply connected simple Lie group and C the center of G, which is isomorphic with the fundamental group of the adjoint group of G. For an element c of C, an element x of the Lie algebra g of G is called a representative of c in g if exp x = c.
openaire   +3 more sources

Primitive ideals, twisting functors and star actions for classical Lie superalgebras [PDF]

open access: yes, 2016
We study three related topics in representation theory of classical Lie superalgebras. The first one is classification of primitive ideals, i.e. annihilator ideals of simple modules, and inclusions between them.
Coulembier, Kevin, Mazorchuk, Volodymyr
core   +1 more source

New Beauville surfaces and finite simple groups [PDF]

open access: yes, 2011
In this paper we construct new Beauville surfaces with group either $\PSL(2,p^e)$, or belonging to some other families of finite simple groups of Lie type of low Lie rank, or an alternating group, or a symmetric group, proving a conjecture of Bauer ...
Garion, Shelly, Penegini, Matteo
core   +5 more sources

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