Results 81 to 90 of about 80,402 (184)

Certain combinatorial topics in group theory [PDF]

International Journal of Group Theory, 2013
This article is intended to be a survey on some combinatorial topics in group theory. The bibliography at the end is neither claimed to be exhaustive, nor is it necessarily connected with a reference in the text.
C K Gupta
doaj  

Directions of automorphisms of Lie groups over local fields compared to the directions of Lie algebra automorphisms

, 2006
To each totally disconnected, locally compact topological group G and each group A of automorphisms of G, a pseudo-metric space of ``directions'' has been associated by U. Baumgartner and the second author. Given a Lie group G over a local field, it is a
Glockner, Helge, Willis, George A.
core  

Power graphs of Brandt semigroups

AKCE International Journal of Graphs and Combinatorics
In this paper, we give some classes of Brandt semigroups which can be uniquely determined by their power graphs. Additionally, it is proved that the completely 0-simple semigroup whose automorphism group is same as that of its power graph is precisely ...
Boxing Yang, Yanliang Cheng, Lingli Zeng, Yong Shao   +3 more
doaj   +1 more source

Time Automorphisms on C*-Algebras

Mathematics, 2015
Applications of fractional time derivatives in physics and engineering require the existence of nontranslational time automorphisms on the appropriate algebra of observables.
R. Hilfer
doaj   +1 more source

Bounding the order of automorphisms of certain curves

, 1995
We study upper bounds on the order of automorphisms of non-singular curves $X$ satisfying at least one of the following hypothesis: 1) $X$ is an $m$-sheeted covering of exactly one non-singular curve of genus $\gamma$, where $m$ is prime; 2) the center ...
Torres, Fernando
core   +1 more source

The classification of modular Lie superalgebras of type M

Open Mathematics, 2015
The natural filtration of the infinite-dimensional simple modular Lie superalgebra M over a field of characteristic p > 2 is proved to be invariant under automorphisms by discussing ad-nilpotent elements.
Ma Lili, Chen Liangyun
doaj   +1 more source

On nilpotent filiform Lie algebras of dimension eight

International Journal of Mathematics and Mathematical Sciences, 2003
The aim of this paper is to determine both the Zariski constructible set of characteristically nilpotent filiform Lie algebras g of dimension 8 and that of the set of nilpotent filiform Lie algebras whose group of automorphisms consists of unipotent ...
P. Barbari, A. Kobotis
doaj   +1 more source

Natural Filtrations of Infinite-Dimensional Modular Contact Superalgebras

Journal of Applied Mathematics, 2014
The natural filtration of the infinite-dimensional contact superalgebra over an algebraic closed field of positive characteristic is proved to be invariant under automorphisms by characterizing ad-nilpotent elements and the subalgebras generated by ...
Qiang Mu
doaj   +1 more source

Classical R-Operators and Integrable Generalizations of Thirring Equations

Symmetry, Integrability and Geometry: Methods and Applications, 2008
We construct different integrable generalizations of the massive Thirring equations corresponding loop algebras g^σ in different gradings and associated ''triangular'' R-operators.
Taras V. Skrypnyk
doaj   +1 more source

On Tensor Squares of Reducible Representations of Almost Simple Groups. II

Моделирование и анализ информационных систем, 2011
Almost simple {SM}_m -groups are considered. A group G is called {SM}_m -group if the tensor square of any irreducible representation is decomposed into the sum of all characters with multiplicities not greater than m.
S. V. Polyakov
doaj