Browsing by Author 

Browsing by Author "Flores Díaz, Ramón Jesús"                

Now showing items 1-19 of 19

    • Final Degree Project
      Icon

      Aplicaciones geométricas del Principio del Máximo para EDPs elípticas 

      Cerezo Cid, Alberto (2021-07-01)
      The aim of this work is to give a detailed proof of two results from the theory of constant mean curvature surfaces: ...
    • Article
      Icon

      Cellular covers of local groups 

      Flores Díaz, Ramón Jesús; Scherer, Jérôme (Springer, 2018-12)
      We prove that, in the category of groups, the composition of a cellularization and a localization functor need not be idempotent. This provides a negative answer to a question of Emmanuel Dror Farjoun.
    • Article
      Icon

      Cellular properties of nilpotent spaces 

      Chachólski, Wojciech; Farjoun, Emmanuel Dror; Flores Díaz, Ramón Jesús; Scherer, Jérôme (Mathematical Sciences Publishers, 2015-10)
      We show that cellular approximations of nilpotent Postnikov stages are always nilpotent Postnikov stages, in particular ...
    • Article
      Icon

      Cryptography with right-angled Artin groups 

      Flores Díaz, Ramón Jesús; Kahrobaei, Delaram (Polish Academy of Sciences, 2016)
      In this paper we propose right-angled Artin groups as a platform for secret sharingschemes based on the efficiency (linear ...
    • Final Degree Project
      Icon

      Esferas de homología 

      Delgado Tejada, Juan Antonio (2020)
      In this Final Undergraduate Project we will deal with Homology Spheres, spaces with the same integer homology groups of ...
    • Final Degree Project
      Icon

      Estructura de los grupos de Artin de ángulo recto 

      Pallares Palencia, Rodrigo (2022-06-22)
      En este Trabajo de Fin de Grado estudiamos la estructura de los grupos de Artin de ángulo recto (RAAGs). La primera parte ...
    • Article
      Icon

      Expanders and right-angled Artin groups 

      Flores Díaz, Ramón Jesús; Kahrobaei, Delaram; Koberda, Thomas (World Scientific Publishing Company, 2021)
      The purpose of this paper is to give a characterization of families of expander graphs via right-angled Artin groups. We ...
    • Article
      Icon

      Homogeneity test for functional data 

      Flores Díaz, Ramón Jesús; Lillo Rodríguez, Rosa Elvira; Romo Urroz, Juan (Taylor & Francis, 2017)
      In the context of functional data analysis, we propose new two sample tests for homogeneity. Based on some well-known depth ...
    • Article
      Icon

      Homotopy idempotent functors on classifying spaces 

      Castellana Vila, Natàlia; Flores Díaz, Ramón Jesús (American Mathematical Society, 2015-02)
      Fix a prime p. Since their definition in the context of Localization Theory, the homotopy functors PBZ/p and CWBZ/p have ...
    • Article
      Icon

      K-homology and K-theory for the lamplighter groups of finite groups 

      Flores Díaz, Ramón Jesús; Pooya, Sanaz; Valette, Alain (London Mathematical Society, 2017-08)
      Let F be a finite group. We consider the lamplighter group L = F ≀ Z over F. We prove that L has a classifying space for ...
    • Article
      Icon

      Nullification and cellularization of classifying spaces of finite groups 

      Flores Díaz, Ramón Jesús (American Mathematical Society, 2007-04)
      In this note we discuss the effect of the BZ/p-nullification PBZ/p and the BZ/p-cellularization CWBZ/p over classifying ...
    • Article
      Icon

      Nullification functors and the homotopy type of the classifying space for proper bundles 

      Flores Díaz, Ramón Jesús (Mathematical Sciences Publishers, 2005-09)
      Let G be a discrete group for which the classifying space for proper G-actions is finite-dimensional. We find a space W ...
    • Article
      Icon

      On the classifying space for proper actions of groups with cyclic torsion 

      Antolín Pichel, Yago; Flores Díaz, Ramón Jesús (De Gruyter, 2014-01)
      In this paper we introduce a common framework for describing the topological part of the Baum-Connes conjecture for a ...
    • Article
      Icon

      On the idempotency of some composite functors 

      Flores Díaz, Ramón Jesús (Springer, 2012-01)
      We present examples of localization functors whose composition with certain cellularization functors is not idempotent, and vice versa.
    • Article
      Icon

      Polynomial braid combing 

      Flores Díaz, Ramón Jesús; González-Meneses López, Juan (Oxford University Press, 2018)
      We prove that, for n ≥ 3, the minimal dimension of a model of the classifying space of the braid group Bn, and of the pure braid group Pn, with respect to the family of virtually cyclic groups is n.
    • Final Degree Project
      Icon

      El problema de la palabra en los grupos de trenzas 

      Aguilar Martín, Javier (2018-06-18)
      The word problem, the conjugacy problem and the isomorphism problem were three fundamental problems of group theory proposed ...
    • Article
      Icon

      Pyramidal values 

      Flores Díaz, Ramón Jesús; Molina Ferragut, Elisenda; Tejada Cazorla, Juan Antonio (Springer, 2014-06)
      We propose and analyze a new type of values for cooperative TU-games, which we call pyramidal values. Assuming that the ...
    • Article
      Icon

      The cellular structure of the classifying spaces of finite groups 

      Flores Díaz, Ramón Jesús; Foote, Richard M. (Springer, 2011-08)
      In this paper we obtain a description of the BZ/p-cellularization (in the sense of Dror-Farjoun) of the classifying spaces of all finite groups, for all primes p.
    • Article
      Icon

      Torsion homology and cellular approximation 

      Flores Díaz, Ramón Jesús; Muro Jiménez, Fernando (Mathematical Sciences Publishers, 2019-02-06)
      We describe the role of the Schur multiplier in the structure of the p-torsion of discrete groups. More concretely, we ...