Listar AGT - Conferencias Científicas por título
Mostrando ítems 1-20 de 44
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Álgebras de Lie con nilradical de tipo 2
(2013-12-18)Se estudia una descripción de la estructura de un álgebra de Lie compleja con nilradical igual a un álgebra de Lie nilpotente de tipo 2 usando la teoría de representaciones de sl_2(C). -
An approach to absolute valued algebras by reflections
(2013-12-11)This talk deals with the problem of the classification of the finite-dimensional absolute-valued algebras, with an special emphasis in the case of the dimension eight. -
Butterfly, Möbius, and Double Burnside algebras of noncyclic finite groups
(2018-03-09)The double Burnside ring B(G,G) of a finite group G is the Grothendieck ring of finite (G,G)-bisets with respect to the tensor product of bisets over G. Many invariants of the group G, such as the (single) Burnside ring ... -
C*-algebras associated to Boolean dynamical systems
(2016-03-15)The goal of this talk is to present the C*-algebra $C^*(\mathcal{B}, \mathcal{L}, \theta)$ of a Boolean dynamical system $(\mathcal{B}, \mathcal{L}, \theta)$, that generalizes the $C^*$-algebra associated to a labelled ... -
Complejidad topológica abstracta en categorías de modelos sobre espacios topológicos
(2015-10-19)En esta charla vamos a estudiar el comportamiento de la complejidad topológica abstracta en diferenties estructuras de modelos sobre los espacios topológicos. En particular, vamos a estudiar bajo que hipótesis el valor de ... -
Connectivity by geodesics on a class of globally hyperbolic spacetimes
(2016-04-14)During the past years there has been a considerable amount of research related to the problem of geodesic connectedness of Lorentzian manifolds. This topic has wide applications in Physics, but for mathematicians its ... -
Derivaciones y derivaciones generales de las álgebras no asociativas
(2018-01-15)El resultado clásico de Jacobson es seguinte: una álgebra de Lie de dimención finita con una derivación inversible sobre un cuerpo del caracteristica cero es una álgebra nilpotente. Nosotros vamos a hablar sobre posibles ... -
Determinación algorítmica de estructuras Hopf Galois
(2018-10-15)La teoría Hopf-Galois es una generalización de la teoría de Galois. La clave es sustituir los grupos de Galois por álgebras de Hopf y la acción de Galois por una cierta “acción de Hopf” que actúa por endomorfismos. Este ... -
Endoregular Modules
(2014-04-02)We will discuss modules whose endomorphism rings are von Neumann regular, which we call endoregular modules. Characterizations and properties of endoregular modules will be presented. For example, it is shown that a direct ... -
Engaños ópticos y artificios perspectivos
(2014-03-27)Título de la conferencia: "Engaños ópticos y artificios perspectivos" La conferencia incide en las relaciones que las disciplinas del Arte y la Ciencia han mantenido históricamente a través de la Geometría, tomando como ... -
Estructura de anillo de la cohomología de Hoschild de álgebras de Sridharan
(2016-10-07)Sridharan probó en [Sri61] que toda álgebra filtrada cuyo graduado asociado es S(V) para algún espacio vectorial V, está determinada salvo isomorfismo por una estructura de Lie sobre V y la clase de cohomología de un ... -
Extensión global de campos vectoriales locales en espacios Pseudo-Finsler I, II.
(2016-02-24)El problema de extensión global de campos locales (Killing, conformes, etc.) en variedades Pseudo-Riemannianas aparece naturalmente en múltiples contextos. Por ejemplo, es un ingrediente esencial en la prueba de que el ... -
Extremal elements in Lie Algebras
(2014-12-10)The main result discussed in this lecture is an elementary proof of the following theorem: If L is a simple Lie algebra over F of characteristic distinct from 2 and 3 having an extremal element that is not a sandwich, ... -
Factorization of Ideals in Leavitt Path algebras
(2017-04-04)After pointing out how ideals in a Leavitt path algebra L of a graph E behave like ideals in a commutative ring, we shall consider the question of factorizing an arbitrary ideal I as a product of finitely many special type ... -
G2 and the rolling ball
(2017-05-09)Understanding the exceptional Lie groups as the symmetry groups of simpler objects is a long-standing program in mathematics. Here, we explore one famous realization of the smallest exceptional Lie group, G2: Its Lie ... -
Geometric assumptions and variational tools in Lorentzian geometry
(2014-10-02)During the past years there has been a considerable amount of research related to the problem of geodesic connectedness of Lorentzian manifolds. In particular, some geometric sufficient conditions have been introduced so ... -
Groupoids and Steinberg Algebras
(2016-03-15)A groupoid is a generalisation of group in which composition is only partially defined. In first half of this talk, I will give an overview of groupoid theory and show how groupoids provide a unifying model for a number ... -
Grupos p-locales finitos y grupos de cohomología
(2013-12-10)Definimos ciertos espacios topológicos llamados grupos p-locales finitos e introducimos una sucesión espectral que calcula su cohomología en ciertos casos, incluyendo algunos grupos p-locales finitos "exóticos". Presentaremos ... -
Homeomorphism groups of the cube and other n-manifolds
(2016-04-25)In this talk, the structure of the homeomorphism group of the cube is presented. Applications to the homeomorphism groups of other n-manifolds are also treated. -
Incidence algebras. Overview
(2015-05-13)In his celebrated paper of 1964, "On the foundations of combinatorial theory I: Theory of Möbius Functions" Gian-Carlo Rota defined an incidence algebra as a tool for solving combinatorial problems. Incidence algebra is a ...