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      A genetic algorithm for cocyclic hadamard matrices 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro (2006)
      A genetic algorithm for finding cocyclic Hadamard matrices is described. Though we focus on the case of dihedral groups, ...
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      A Mathematica Notebook for Computing the Homology of Iterated Products of Groups 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro (2006)
      Let G be a group which admits the structure of an iterated product of central extensions and semidirect products of abelian ...
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      Algebraic topological analysis of time-sequence of digital images 

      González Díaz, Rocío; Medrano Garfia, Belén; Real Jurado, Pedro; Sáchez Peláez, Javier (2005)
      This paper introduces an algebraic framework for a topological analysis of time-varying 2D digital binary–valued images, ...
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      Calculating cocyclic hadamard matrices in Mathematica: exhaustive and heuristic searches 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro (2006)
      We describe a notebook in Mathematica which, taking as input data a homological model for a finite group G of order |G| = ...
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      Comparison maps for relatively free resolutions 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro (2006)
      Let Λ be a commutative ring, A an augmented differential graded algebra over Λ (briefly, DGA-algebra) and X be a relatively ...
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      Simplicial perturbation techniques and effective homology 

      González Díaz, Rocío; Medrano Garfia, Belén; Sánchez Peláez, Javier; Real Jurado, Pedro (2006)
      In this paper, we deal with the problem of the computation of the homology of a finite simplicial complex after an “elementary ...