Mostrando ítems 27-46 de 54

• #### Jordan-lie inner ideals of finite dimensional associative algebras ﻿

(2017-06-15)
Any associative ring A becomes a Lie ring A(−) under [x, y] = xy−yx. Let A(1) = [A, A] be the derived subalgebra of A(−) and let Z be its center. In the early 1950s Herstein initiated a study of Lie ideals of A in case ...
• #### KV. Cohomology and some applications ﻿

(2020-02-24)
Two versions of the KV-cohomology are presented and some algebraic and geometrical applications are given. We will see some applications to stochastic manifold. As a consequence, we can apply these ideas in Lorentzian ...
• #### L-InfinityAlgebras, Cohomology and M-Theory ﻿

(2017-05-12)
In this introduction for topologists, we explain the role that extensions of L-infinity algebras by taking homotopy fibers plays in physics. This first appeared with the work of physicists D'Auria and Fre in 1982, ...
• #### Leavitt path algebras and the IBN property ﻿

(2016-12-21)
A ring has invariant basis number property (IBN) if any two bases of a finitely generated free module have the same number of elements. In 1960's Leavitt constructed examples of rings R without IBN, more precisely for any ...
• #### Leavitt Path algebras via partial skew ring theory ﻿

(2018-04-17)
We will introduce the theory or partial actions of groups and their associated algebras. As an example we will realize the Leavitt path algebra associated with a graph as a partial skew group ring. To finish, we will ...
• #### Maximal surfaces and graphs in a Lorentzian product -RxM ﻿

(2015-02-26)
We will present several results for maximal surfaces in a Lorentzian product manifold -R×M. The main purpose is to characterize the slices as complete maximal surfaces satisfying a comparison between the growth of lenght ...
• #### Modelos no asociativos en genética de poblaciones ﻿

(2017-05-04)
El objetivo de esta charla es, en primer lugar, dar una visi on general de algunos de los modelos no asociativos m as com unmente utilizados en gen etica de poblaciones para, a continuaci on, describir las llamadas co ...

(2014-12-10)
Dado un módulo irreducible de dimensión finita para un álgebra de Lie semisimple graduada sobre un cuerpo algebraicamente cerrado de característica cero, se estudiarán las obstrucciones que existen para la existencia de ...
• #### On intersections of ideals of Leavitt path algebras ﻿

(2017-04-04)
During the 2015 CIMPA Research School in Turkey on “Leavitt path algebras and graph C*-algebras”, Astrid an Huef raised the question whether the statement: For a given graph E, every (closed) ideal I of C*(E) is ...
• #### Ondas Gravitacionales: el amanecer de una nueva era ﻿

(2016-09-13)
Después de una larga espera de decenas de años estamos de enhorabuena: el 14 de Septiembre de 2015 una colaboración científica internacional (LIGO/VIRGO) logró detectar, en sus interferómetros más avanzados en funcionamiento, ...
• #### Ordenes Locales en Álgebras de Jordan ﻿

(2017-02-16)
La noción de orden local procede de los trabajos de Fountain y Gould en el caso de álgebras asociativas, y ha sido adaptada a álgebras y otros sistemas de Jordan por varios autores. En esta charla, la fuente original ...
• #### Películas de jabón y matemáticas ﻿

(2019-05-13)
Las superficies mínimas aparecen de forma recurrente en la naturaleza y tienen múltiples aplicaciones a distintas ciencias. En matemáticas, son objetos muy estudiados desde diferentes puntos de vista, destacando entre ...
• #### Perspectiva. Espacios construidos y espacios representados. ﻿

(2015-04-24)
La conferencia presentará los fundamentos científicos de la perspectiva, conocida tradicionalmente como “la ciencia del arte”, con la mención de los que han sido considerados sus principales referentes en el contexto ...
• #### Primitive graph algebras ﻿

(2014-06-18)
Let $E = (E^0, E^1, s,r)$ be an arbitrary directed graph (i.e., no restriction is placed on the cardinality of $E^0$, or of $E^1$, or of $s^{-1}(v)$ for $v\in E^0$). Let $L_K(E)$ denote the Leavitt path algebra of ...
• #### Recent results on (p,q)-Laplacian type equations ﻿

(2017-05-09)
Start ing from a new sum decomposit ion of W1,p(RN ) ∩W1,q(RN ) and using a variat ional approach, we invest igate the existence of mult ipleweak solut ions of a (p, q)–Laplacian equat ion on RN , for 1 < q < p < N , ...

(2016-05-19)
We show how to reconstruct a graded ample Hausdorff groupoid with topologically principal neutrally-graded component from the ring structure of its graded Steinberg algebra over any commutative integral domain with 1, ...
• #### Rigid singularity theorems in Lorentzian Geometry ﻿

(2014-10-02)
The importance of the singularity theorems in Lorentzian Geometry, which give su cient conditions on a spacetime entailing the incompleteness of its null or timelike geodesics, is well known. But equally important is to ...
• #### Sigma-maps on triangular algebras ﻿

(2018-01-30)
Triangular algebras were introduced by Chase in the early 1960s. He ended up with these structures in the course of his study of the asymmetric behavior of semi-hereditary rings. Since their introduction, triangular ...
• #### Simple locally finite Lie algebras ﻿

(2013-12-12)
A Lie algebra is called locally finite if all its finitely generated subalgebras are finite dimensional. We will discuss some approaches towards classification of simple locally finite Lie algebras and give various ...