• Álgebras de Lie con nilradical de tipo 2 

      Benito Clavijo, Pilar (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 

      Alsaody, Seidon (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 

      Park, Sejong (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 

      Pardo Espino, Enrique (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 

      Moraschini, Marco (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 

      Bartolo, Rosella (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 

      Kaygorodov, Ivan (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 

      Salguero García, Marta (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 

      Rizvi, Tariq (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 

      López Vílchez, Inmaculada (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 

      D'Alesio, Sofía (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. 

      Herrera Fernández, Jónatan (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 

      Cohen, Arjeh M. (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 

      Rangaswamy, Kulumani (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 

      Huerta, John (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 

      Candela, Anna Maria (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 

      Clark, Lisa Orloff (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 

      Garaialde Ocaña, Oihana (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 

      Rolfsen, Dale; Calegari, Danny (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 

      Muge, Kanuni (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 ...