Now showing items 1-12 of 157

    • Influence decision models: from cooperative game theory to social network analysis 

      Molinero Albareda, Xavier; Riquelme Csori, Fabián (Elsevier, 2021-02)
      Article
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      Cooperative game theory considers simple games and influence games as essential classes of games. A simple game can be viewed as a model of voting systems in which a single alternative, such as a bill or an amendment, is ...
    • Decay of quasi-static porous-thermo-elastic waves 

      Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2021-06)
      Article
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      We study the behavior in time of the solutions to several systems of equations for porous-thermo-elastic problems when one of the variables is considered to be quasi-static or, in other words, whose second time derivative ...
    • On the enumeration of bipartite simple games 

      Freixas Bosch, Josep; Samaniego Vidal, Daniel (2021-07-15)
      Article
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      This paper provides a classification of all monotonic bipartite simple games. The problem we deal with is very versatile since simple games are inequivalent monotonic Boolean functions, functions that are used in many ...
    • An extension and an alternative characterization of May’s theorem 

      Freixas Bosch, Josep; Pons Vallès, Montserrat (Springer, 2021-03-14)
      Article
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      The context of this work is a voting scenario in which each voter expresses his/her level of affinity about a proposal, by choosing a value in the set J={-j,…,-1,0,1,…,j}, and these individual votes produce a collective ...
    • An appropriate way to extend the Banzhaf index for multiple levels of approval 

      Freixas Bosch, Josep; Pons Vallès, Montserrat (Springer Nature, 2021-01-03)
      Article
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      The Banzhaf power index for games admits several extensions if the players have more than two ordered voting options. In this paper we prove that the most intu-itive and recognized extension ...
    • On the enumeration of Boolean functions with distinguished variables 

      Freixas Bosch, Josep (Springer Nature, 2020-11-18)
      Article
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      Boolean functions have a fundamental role in neural networks and machine learning. Enumerating these functions and significant subclasses is a highly complex problem. Therefore, it is of interest to study subclasses that ...
    • A characterization of weighted simple games based on pseudoweightings 

      Freixas Bosch, Josep (2020-09-14)
      Article
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      The paper provides a new characterization of weighted games within the class of simple games. It is based on a stronger form of the point-set-additive pseudoweighting property of simple games. The characterization obtained ...
    • Exponential decay of solutions in type II porous-thermo-elasticity with quasi-static microvoids 

      Magaña Nieto, Antonio; Miranville, Alain; Quintanilla de Latorre, Ramón (2020-12-15)
      Article
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      In this note we study the problem proposed by the one-dimensional thermo-porous-elasticity of type II with quasi-static microvoids or, in mathematical terms, when the second time derivative of the volume fraction is so ...
    • A poro-thermoelastic problem with dissipative heat conduction 

      Bazarra, Noelia; Fernández, Jose R.; Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2020-07-18)
      Article
      Open Access
      In this work, we study from the mathematical and numerical points of view a poro-thermoelastic problem. A long-term memory is assumed on the heat equation. Under some assumptions on the constitutive tensors, the resulting ...
    • Exponential decay in one-dimensional Type II/III thermoelasticity with two porosities 

      Magaña Nieto, Antonio; Quintanilla de Latorre, Ramón (2020-07-30)
      Article
      Open Access
      In this paper we consider the theory of thermoelasticity with a double porosity structure in the context of the Green-Naghdi types II and III heat conduction models. For the type II, the problem is given by four hyperbolic ...
    • Some properties for bisemivalues on bicooperative games 

      Domènech Blázquez, Margarita; Giménez Pradales, José Miguel; Puente del Campo, María Albina (2020-02-29)
      Article
      Open Access
      In this work, we focus on bicooperative games, a variation of the classic cooperative games, and investigate the conditions for the coefficients of the bisemivalues—a generalization of semivalues for cooperative games—necessary ...
    • A mathematical perspective on how test-type exams are evaluated 

      Freixas Bosch, Josep; Pons Vallès, Montserrat (2020)
      Conference report
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      Typically, the test type exams with binary answers (true / false) are corrected by adding a +1 to the correct answers, a -1 to the incorrect ones and 0 to non-answered questions. This mainly obeys to a purely statistic ...