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Browsing by Author "Flores Díaz, Ramón Jesús"
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Article
Cellular covers of local groups
Flores Díaz, Ramón Jesús; Scherer, Jérôme (Springer, 201812)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
Cellular properties of nilpotent spaces
Chachólski, Wojciech; Farjoun, Emmanuel Dror; Flores Díaz, Ramón Jesús; Scherer, Jérôme (Mathematical Sciences Publishers, 201510)We show that cellular approximations of nilpotent Postnikov stages are always nilpotent Postnikov stages, in particular ...

Article
Cryptography with rightangled Artin groups
Flores Díaz, Ramón Jesús; Kahrobaei, Delaram (Polish Academy of Sciences, 2016)In this paper we propose rightangled Artin groups as a platform for secret sharingschemes based on the efficiency (linear ...

Final Degree Project
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 ...

Article
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 wellknown depth ...

Article
Homotopy idempotent functors on classifying spaces
Castellana Vila, Natàlia; Flores Díaz, Ramón Jesús (American Mathematical Society, 201502)Fix a prime p. Since their definition in the context of Localization Theory, the homotopy functors PBZ/p and CWBZ/p have ...

Article
Khomology and Ktheory for the lamplighter groups of finite groups
Flores Díaz, Ramón Jesús; Pooya, Sanaz; Valette, Alain (London Mathematical Society, 201708)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
Nullification and cellularization of classifying spaces of finite groups
Flores Díaz, Ramón Jesús (American Mathematical Society, 200704)In this note we discuss the effect of the BZ/pnullification PBZ/p and the BZ/pcellularization CWBZ/p over classifying ...

Article
Nullification functors and the homotopy type of the classifying space for proper bundles
Flores Díaz, Ramón Jesús (Mathematical Sciences Publishers, 200509)Let G be a discrete group for which the classifying space for proper Gactions is finitedimensional. We find a space W ...

Article
On the classifying space for proper actions of groups with cyclic torsion
Antolín Pichel, Yago; Flores Díaz, Ramón Jesús (De Gruyter, 201401)In this paper we introduce a common framework for describing the topological part of the BaumConnes conjecture for a ...

Article
On the idempotency of some composite functors
Flores Díaz, Ramón Jesús (Springer, 201201)We present examples of localization functors whose composition with certain cellularization functors is not idempotent, and vice versa.

Article
Polynomial braid combing
Flores Díaz, Ramón Jesús; GonzálezMeneses 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
El problema de la palabra en los grupos de trenzas
Aguilar Martín, Javier (20180618)The word problem, the conjugacy problem and the isomorphism problem were three fundamental problems of group theory proposed ...

Article
Pyramidal values
Flores Díaz, Ramón Jesús; Molina Ferragut, Elisenda; Tejada Cazorla, Juan Antonio (Springer, 201406)We propose and analyze a new type of values for cooperative TUgames, which we call pyramidal values. Assuming that the ...

Article
The cellular structure of the classifying spaces of finite groups
Flores Díaz, Ramón Jesús; Foote, Richard M. (Springer, 201108)In this paper we obtain a description of the BZ/pcellularization (in the sense of DrorFarjoun) of the classifying spaces of all finite groups, for all primes p.

Article
Torsion homology and cellular approximation
Flores Díaz, Ramón Jesús; Muro Jiménez, Fernando (Mathematical Sciences Publishers, 20190206)We describe the role of the Schur multiplier in the structure of the ptorsion of discrete groups. More concretely, we ...