Recent Submissions

  • Green operators of networks with a new vertex 

    Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gago Álvarez, Silvia; Mitjana Riera, Margarida (Elsevier, 2016-02)
    Article
    Open Access
    Any elliptic operator defines an automorphism on the orthogonal subspace to the eigenfunctions associated with the lowest eigenvalue, whose inverse is the orthogonal Green operator. In this study, we show that elliptic ...
  • Disturbance decoupling problem for switched linear systems. A geometric approach 

    García Planas, María Isabel (WSEAS Press, 2015)
    Article
    Open Access
    In this paper disturbance decoupling problem for switched linear systems is formulated under a geometrical point of view. Necessary and sufficient conditions for the problem with standardizable condition to be solvable are given
  • Overdetermined partial resolvent kernels for finite networks 

    Arauz Lombardia, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2016-03-01)
    Article
    Open Access
    In [2], a study of the existence and uniqueness of solution of partial overdetermined boundary value problems for finite networks was performed. These problems involve Schrodinger operators and the novel feature is that ...
  • Problem A-20: A rational sum 

    Díaz Barrero, José Luis; Gibergans Baguena, José (2015-06)
    Article
    Restricted access - publisher's policy
  • The relation type of affine algebras and algebraic varieties 

    Planas Vilanova, Francesc d'Assís (2015-11-01)
    Article
    Restricted access - publisher's policy
    We introduce the notion of relation type of an affine algebra and prove that it is well defined by using the Jacobi-Zariski exact sequence of Andre-Quillen homology. In particular, the relation type,is an invariant of an ...
  • Absolute order-of-magnitude reasoning applied to a social multi-criteria evaluation framework 

    Afsordegan, Arayeh; Sánchez Soler, Monica; Agell Jané, Núria; Aguado Chao, Juan Carlos; Gamboa Jimenez, Gonzalo (2015-04-27)
    Article
    Restricted access - publisher's policy
    A social multi-criteria evaluation framework for solving a real-case problem of selecting a wind farm location in the regions of Urgell and Conca de Barberá in Catalonia (northeast of Spain) is studied. This paper applies ...
  • Completion and decomposition of hypergraphs into dominating sets of graphs 

    Martí Farré, Jaume; Mora Giné, Mercè; Ruiz Muñoz, José Luis (2015-11)
    Article
    Restricted access - publisher's policy
    The collection of the vertex dominating sets of a graph defines a hypergraph on the set of vertices of the graph. However, there are hypergraphs H that are not the collection of the vertex dominating sets of any graph. ...
  • Precompensated Second Order Repetitive Control of an Active Filter Under Varying Network Frequency 

    Ramos Fuentes, German A.; Costa Castelló, Ramon; Olm Miras, Josep Maria (2015-07-01)
    Article
    Restricted access - publisher's policy
    Network frequency variations cause a dramatic performance decay in repetitive controller-based shunt active power filters. This problem may be solved by adapting the sampling period in order to keep the ratio between the ...
  • A new multisymplectic unified formalism for second order classical field theories 

    Prieto Martínez, Pedro Daniel; Román Roy, Narciso (American Institute of Mathematical Sciences, 2015-06-01)
    Article
    Restricted access - publisher's policy
    We present a new multisymplectic framework for second-order classical field theories which is based on an extension of the unified LagrangianHamiltonian formalism to these kinds of systems. This model provides a straightforward ...
  • Connectivity and other invariants of generalized products of graphs 

    López Masip, Susana Clara; Muntaner Batle, Francesc Antoni (2015-02-24)
    Article
    Restricted access - publisher's policy
    Figueroa-Centeno et al. [4] introduced the following product of digraphs let D be a digraph and let G be a family of digraphs such that V (F) = V for every F¿G. Consider any function h:E(D)¿G. Then the product D¿hG is the ...

View more