• Ponencia
      Icon

      Rooted Trees Searching for Cocyclic Hadamard Matrices over D4t 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Gudiel Rodríguez, Félix; Osuna Lucena, Amparo (Springer, 2009)
      A new reduction on the size of the search space for cocyclic Hadamard matrices over dihedral groups D4t is described, in ...
    • Artículo
      Icon

      Rotational elliptic Weingarten surfaces in S2 × R and the Hopf problem 

      Fernández Delgado, Isabel (ScienceDirect, 2023-10-15)
      We prove that, up to congruence, there exists only one immersed sphere satisfying a given uniformly elliptic Weingarten ...
    • Artículo
      Icon

      Santilli autotopisms of partial groups 

      Falcón Ganfornina, Raúl Manuel; Núñez Valdés, Juan (Science Publishing Group, 2015-10)
      This paper deals with those partial groups that contain a given Santilli isotopism in their autotopism group. A classification of these autotopisms is explicitly determined for partial groups of order n ≤ 4.
    • Ponencia
      Icon

      Santilli's autotopism of associative partial quasigroups 

      Falcón Ganfornina, Raúl Manuel; Núñez Valdés, Juan (International Academic Press, 2007)
      In this paper, given an isotopism Θ ∈ In, we study some properties of the set SAPLS(Θ) of those partial Latin squares being the multiplication table of an associative partial quasigroup having Θ as a Santilli’s autotopism.
    • Artículo
      Icon

      Schedule and Cost Control in Dwelling Construction Using Control Charts 

      Marrero Meléndez, Madelyn; Fonseca, Antonio; Falcón Ganfornina, Raúl Manuel; Ramírez de Arellano Agudo, Antonio (Bentham Open, 2014)
      Methods to monitor the schedule and to control cost in dwelling construction projects are numerous and varied but commonly ...
    • Artículo
      IconIcon

      Scutoids are a geometrical solution to three-dimensional packing of epithelia 

      Gómez Gálvez, Pedro; Vicente Munuera, Pablo; Tagua Jáñez, Antonio; Forja Barbosa, Cristina; Castro Rodríguez, Ana María; Letrán, Marta; Grima Ruiz, Clara Isabel; Bermúdez Gallardo, Marina; Serrano Pérez-Higueras, Óscar; Márquez Pérez, Alberto; Escudero Cuadrado, Luis María (Nature Publishing Group, 2018)
      As animals develop, tissue bending contributes to shape the organs into complex three-dimensional structures. However, the ...
    • Artículo
      Icon

      Searching combinatorial optimality using graph-based homology information 

      Real Jurado, Pedro; Molina Abril, Helena; González Lorenzo, Aldo; Bac, Alexandra; Mari, Jean-Luc (2015)
      This paper analyses the topological information of a digital object O under a combined combinatorial-algebraic point of ...
    • Ponencia
      Icon

      Searching for partial Hadamard matrices 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Gudiel Rodríguez, Félix; Güemes Alzaga, María Belén; Martín García, Elena; Osuna Lucena, Amparo (Universidade de Santiago de Compostela, Servicio de Publicaciones, 2010)
      Three algorithms looking for pretty large partial Hadamard ma- trices are described. Here “large” means that hopefully ...
    • Artículo
      Icon

      Searching high order invariants in computer imagery 

      Berciano Alcaraz, Ainhoa; Molina Abril, Helena; Real Jurado, Pedro (2012)
      In this paper, we present a direct computational application of Homological Perturbation Theory (HPT, for short) to computer ...
    • Artículo
      Icon

      Sediment transport models in Shallow Water equations and numerical approach by high order finite volume methods. 

      Castro Díaz, Manuel Jesús; Fernández Nieto, Enrique Domingo; Ferreiro Ferreiro, Ana María (Elsevier, 2008)
      This paper is concerned with the numerical approximation of bedload sediment transport due to water evolution. For the ...
    • Capítulo de Libro
      Icon

      Segmentation in 2D and 3D image using Tissue-Like P System 

      Christinal, Hepzibah A.; Díaz Pernil, Daniel; Real Jurado, Pedro (2009)
      Membrane Computing is a biologically inspired computational model. Its devices are called P systems and they perform ...
    • Artículo
      Icon

      Segmenting images with gradient-based edge detection using Membrane Computing 

      Díaz Pernil, Daniel; Berciano, Ainhoa; Peña Cantillana, Francisco; Gutiérrez Naranjo, Miguel Ángel (Elsevier, 2013)
      In this paper, we present a parallel implementation of a new algorithm for segmenting images with gradient-based edge ...
    • Ponencia
      Icon

      Self-constructing Recognizer P Systems 

      Díaz Pernil, Daniel; Peña Cantillana, Francisco; Gutiérrez Naranjo, Miguel Ángel (Fénix Editora, 2014)
      Usually, the changes produced in the membrane structure of a P system are considered side effects. The output of the ...
    • Artículo
      Icon

      Self-Dual codes from (−1,1)-matrices of skew symmetric type 

      Armario Sampalo, José Andrés; Frau García, María Dolores (Cornell University, 2013)
      Previously, self-dual codes have been constructed from weighing matrices, and in particular from conference matrices (skew ...
    • Ponencia
      Icon

      Semantics of Deductive Databases in a Membrane Computing Connectionist Model 

      Díaz Pernil, Daniel; Gutiérrez Naranjo, Miguel Ángel (Fénix, 2016)
      The integration of symbolic reasoning systems based on logic and connectionist systems based on the functioning of living ...
    • Artículo
      Icon

      Semantics of deductive databases with spiking neural P systems 

      Díaz Pernil, Daniel; Gutiérrez Naranjo, Miguel Ángel (Elsevier, 2018)
      The integration of symbolic reasoning systems based on logic and connectionist systems based on thefunctioning of living ...
    • Artículo
      Icon

      Separability of Point Sets by k-Level Linear Classification Trees 

      Arkin, Esther M.; Garijo Royo, Delia; Márquez Pérez, Alberto; Mitchell, Joseph S. B.; Seara Ojea, Carlos (2012)
      Let R and B be sets of red and blue points in the plane in general position. We study the problem of computing a k-level ...
    • Ponencia
      Icon

      Separación y clasificación de puntos rojos y azules 

      Garijo Royo, Delia; Márquez Pérez, Alberto; Mitchell, Joseph S. B.; Seara, Carlos (Universidad de Valladolid, 2007)
      En este trabajo estudiamos el problema de determinar si dos conjuntos disjuntos de n puntos en el plano son separables ...
    • Ponencia
      Icon

      Separating Topological Noise from Features Using Persistent Entropy 

      Atienza Martínez, María Nieves; González Díaz, Rocío; Rucco, Matteo (Springer, 2016)
      Topology is the branch of mathematics that studies shapes and maps among them. From the algebraic definition of topology ...
    • Artículo
      Icon

      Sequential density techniques for an approximate Radon-Nikodym theorem 

      Campo Acosta, Ricardo del; Amo, Enrique de (Springer, 2007)
      We deal with the problem of approximate representation of linear functionals and show how the sequential density techniques may be used for solution.