Results 11 to 20 of about 310,777 (176)

Parabolic subgroups and algebraic monoids [PDF]

open access: yesJournal of Algebra, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huang, Wenxue, Wenxue Huang
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Parabolic Subgroups of Artin Groups [PDF]

open access: yesJournal of Algebra, 1997
Let \((A,\Sigma)\) be an Artin system. For \(X\subseteq\Sigma\) by \(A_X\) is denoted the subgroup of \(A\) generated by \(X\). Such a group is called a parabolic subgroup of \(A\). Van der Lek's theorem is reproved: ``A parabolic subgroup of an Artin group is an Artin group''.
Paris, Luis
openaire   +2 more sources

Quasi-permutation Representations of Borel and Parabolic Subgroups of Steinberg's triality groups [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2009
If G is a finite linear group of degree n, that is, a finite group of automor-phisms of an n-dimensional complex vector space, or equivalently, a finite group of non-singular matrices of order n with complex coefficients, we shall say that G is a quasi ...
M. Ghorbany
doaj   +1 more source

Evaluation of the Floor Acceleration Amplification Demand of Instrumented Buildings

open access: yesAdvances in Civil Engineering, 2021
The floor acceleration amplification (FAA) factor is one of the most critical parameters in computing the equivalent seismic force of nonstructural component (NC). To evaluate the heightwise FAA distribution profile, the recorded acceleration response of
Baofeng Huang, Wensheng Lu
doaj   +1 more source

Parabolic subgroups of large-type Artin groups

open access: yes, 2022
We show that the geometric realisation of the poset of proper parabolic subgroups of a large-type Artin group has a systolic geometry. We use this geometry to show that the set of parabolic subgroups of a large-type Artin group is stable under arbitrary ...
Vaskou, Nicolas   +3 more
core   +1 more source

Maximum norm a posteriori error estimation for parabolic problems using elliptic reconstructions [PDF]

open access: yes, 2013
A semilinear second-order parabolic equation is considered in a regular and a singularly perturbed regime. For this equation, we give computable a posteriori error estimates in the maximum norm.
Linss, Torsten, Kopteva, Natalia
core   +4 more sources

The maximal subgroups of the classical groups in dimension 13, 14 and 15 [PDF]

open access: yes, 2015
One might easily argue that the Classification of Finite Simple Groups is one of the most important theorems of group theory. Given that any finite group can be deconstructed into its simple composition factors, it is of great importance to have a ...
Anna Katharina Schröder   +1 more
core   +2 more sources

Reduction of structure to parabolic subgroups

open access: yesDocumenta Mathematica, 2022
Let G be an affine group over a field of characteristic not two. A G -torsor is called isotropic if it admits reduction of ...
openaire   +2 more sources

Conjugacy in relatively extra-large Artin groups [PDF]

open access: yesInternational Journal of Group Theory, 2015
Let A be an Artin group with standard generators X={x 1 ,…,x n } , n≥1 and defining graph Γ A . A \emph{standard parabolic subgroup} of A is a subgroup generated by a subset of X .
Arye Juhasz
doaj  

KOSTANT'S PROBLEM AND PARABOLIC SUBGROUPS [PDF]

open access: yesGlasgow Mathematical Journal, 2009
AbstractLet be a finite dimensional complex semi-simple Lie algebra with Weyl group W and simple reflections S. For I ⊆ S let I be the corresponding semi-simple subalgebra of . Denote by WI the Weyl group of I and let w○ and wI○ be the longest elements of W and WI, respectively. In this paper we show that the answer to Kostant's problem, i.e.
openaire   +2 more sources

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