Now showing items 21-40 of 55

  • Group inverse matrix of the normalized Laplacian on subdivision networks 

    Carmona Mejías, Ángeles; Mitjana Riera, Margarida; Monsó Burgués, Enrique P.J. (Universidad de Cádiz, 2017)
    Conference report
    Open Access
  • Inversa de matrices circulantes con tres parámetros 

    Mitjana Riera, Margarida (2015)
    Conference report
    Open Access
    Utilizando técnicas relacionadas con la resolución de problemas de contorno para ecuaciones en diferencias de segundo orden, se dan condiciones necesarias y suficientes cientes para la invertibilidad de matrices circulantes ...
  • Kirchhoff indexes of a network 

    Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel; Mitjana Riera, Margarida (Elsevier, 2010-04-15)
    Article
    Restricted access - publisher's policy
    In this work we define the effective resistance between any pair of vertices with respect to a value λ ≥ 0 and a weight ω on the vertex set. This allows us to consider a generalization of the Kirchhoff Index of a finite ...
  • Kirchhoff index of periodic linear chains 

    Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2015-02)
    Article
    Open Access
    A periodic linear chain consists of a weighted 2n -path where new edges have been added following a certain periodicity. In this paper, we obtain the effective resistance and the Kirchhoff index of a periodic linear chain ...
  • Matrix tree theorem for Schrödinger operators on networks 

    Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2017)
    Conference report
    Open Access
  • MÈTODES MATEMÀTICS 2 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2012-01-10)
    Exam
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  • MÈTODES MATEMÀTICS 2 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2011-10-25)
    Exam
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  • MÈTODES MATEMÀTICS 2 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2011-12-21)
    Exam
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  • MÈTODES MATEMÀTICS 2 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2013-01-10)
    Exam
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  • MÈTODES MATEMÀTICS 2 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2013-07-03)
    Exam
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  • MÈTODES MATEMÀTICS 2 (Examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2007-07-06)
    Exam
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  • MÈTODES MATEMÀTICS 2 (Examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2009-09-13)
    Exam
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  • MÈTODES MATEMÀTICS 2 (Examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2005-01-11)
    Exam
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  • MÈTODES MATEMÀTICS 2 (Examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2007-01-16)
    Exam
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  • MÈTODES MATEMÀTICS 2 (Examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2005-01-11)
    Exam
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  • MÈTODES MATEMÀTICS II (examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2008-10-28)
    Exam
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  • MÈTODES MATEMÀTICS II (Examen 1r quadrim) 

    Mitjana Riera, Margarida (Universitat Politècnica de Catalunya, 2008-01-15)
    Exam
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  • Minimal contention-free matrices with application to multicasting 

    Cohen, Johanne; Fraigniaud, Pierre; Mitjana Riera, Margarida (2000)
    Article
    Open Access
    In this paper, we show that the multicast problem in trees can be expressed in term of arranging rows and columns of boolean matrices. Given a $p \times q$ matrix $M$ with 0-1 entries, the {\em shadow} of $M$ is ...
  • M-Matrix Inverse problem for distance-regular graphs 

    Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (Iniciativa Digital Politècnica, 2011)
    Conference report
    Open Access
    We analyze when the Moore–Penrose inverse of the combinatorial Laplacian of a distance–regular graph is a M–matrix;that is, it has non–positive off–diagonal elements or, equivalently when the Moore-Penrose inverse of the ...
  • M-Matrix Inverse problem for distance-regular graphs 

    Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2010)
    Conference lecture
    Open Access