Browsing by Author "Mitjana Riera, Margarida"Més informacióMés informació

Now showing items 21-40 of 161

    • Green functions for boundary value problems on product networks 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2019)
      Conference report
      Open Access

    • Green functions on product networks 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2018-01-01)
      Article
      Open Access
      We aim here at determining the Green function for general Schrödinger operators on product networks. The first step consists in expressing Schrödinger operators on a product network as sum of appropriate Schrödinger operators ...

    • Green matrices associated with generalized linear polyominoes 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (Elsevier, 2015)
      Article
      Open Access
      A polyomino is an edge-connected union of cells in the planar square lattice. Here we consider generalized linear polyominoes; that is, the polyominoes supported by an n × 2 lattice. In this paper, we obtain the ...

    • 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 ...

    • Green's function in partial subdivision networks 

      Carmona Mejías, Ángeles; Mitjana Riera, Margarida; Monsó Burgués, Enrique P.J. (Taylor & Francis, 2018-07-24)
      Article
      Open Access
      In the present work, we define a partial subdivision network of a given network G, by inserting a new vertex in some selected edges of G, so that each of these edges is replaced by two new edges with conductances that ...

    • Green's function of a weighted $n$-cycle 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gago Álvarez, Silvia; Jiménez Jiménez, María José; Mitjana Riera, Margarida (2016)
      Conference report
      Open Access

    • Green’s kernel for subdivision networks 

      Carmona Mejías, Ángeles; Mitjana Riera, Margarida; Monsó Burgués, Enrique P.J. (2016)
      Conference report
      Open Access

    • Green’s kernel of Schrödinger operators on generalized subdivision networks 

      Carmona Mejías, Ángeles; Mitjana Riera, Margarida; Monsó Burgués, Enrique P.J. (2017)
      Conference report
      Open Access

    • Group inverse matrix of the normalized Laplacian on subdivision networks 

      Carmona Mejías, Ángeles; Mitjana Riera, Margarida; Monsó Burgués, Enrique P.J. (2020)
      Article
      Open Access
      In this paper we consider a subdivision of a given network and we show how the group inverse matrix of the normalized laplacian of the subdivision network is related to the group inverse matrix of the normalized laplacian ...

    • 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

    • Introducció al llenguatge C 

      Mitjana Riera, Margarida; Ferrer Biosca, Alberto (Universitat Politècnica de Catalunya, 2009)
      Lecture notes
      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 ...

    • It's your day! Take action and click on the video zone: understanding, imagining, doing and reviewing 

      Carmona Mejías, Ángeles; Claverol Aguas, Mercè; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Martin Llopis, Álvar; Mas Blesa, Albert; Mitjana Riera, Margarida; Ruiz Ordóñez, Magda (2022)
      Conference report
      Open Access

    • It's your day! Take action and click on the video zone: understanding, imagining, doing and reviewing 

      Carmona Mejías, Ángeles; Claverol Aguas, Mercè; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Martin Llopis, Álvar; Mas Blesa, Albert; Mitjana Riera, Margarida; Ruiz Ordóñez, Magda (Universitat Politècnica de Catalunya, 2022-09)
      Conference report
      Open Access
      This paper summarizes the results obtained in a project conceived to improve remote and face-to-face teaching of Calculus in the fields of industrial and biomedical engineering. The project consists of developing teaching ...

    • 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 ...

    • 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 ...

    • 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

    • 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, 2011-10-25)
      Exam
      Restricted access to the UPC academic community