Ara es mostren els items 49-68 de 187

    • Generalized linear polyominoes, Green functions and Green matrices 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2012)
      Comunicació de congrés
      Accés obert
      In this work we derive the Creen function of a generalized linear Polyomino as a suitable perturbation of the Creen function of a Hamiltonian path on it. So, our study encompasses previous work:; on polyomino-like chains.
    • Generalizing the bottleneck matrix 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida; Monsó Burgués, Enrique P.J. (2019)
      Text en actes de congrés
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      Given the Laplacian matrix associated to a weighted graph and given x a single vertex of it, the bottleneck matrix (related to x) is the inverse matrix of the sub matrix of the Laplacian obtained by eliminating the row ...
    • Green function on product networks 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2012)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Our objective is to determine the Green function of product networks in terms of the Green function of one of the factor networks and the eigenvalues and eigenfunctions of the Schr odinger operator of the other factor ...
    • Green functions for boundary value problems on product networks 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2019)
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    • Green functions on product networks 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2018-01-01)
      Article
      Accés obert
      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
      Accés obert
      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
      Accés obert
      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 of a weighted $n$-cycle 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gago Álvarez, Silvia; Jiménez Jiménez, María José; Mitjana Riera, Margarida (2016)
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    • Group Inverse and equilibrium measure on Random Walks 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Martin Llopis, Álvar (2023)
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    • Inversa de grupo y medida de equilibrio en caminos aleatorios 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Martin Llopis, Álvar (2023)
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    • 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)
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    • 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)
      Text en actes de congrés
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      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 ...
    • Jacobi matrices and boundary value problems in distance-regular graphs 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gago Álvarez, Silvia (2012-01-25)
      Report de recerca
      Accés obert
      In this work we analyze regular boundary value problems on a distance-regular graph associated with SchrÄodinger operators. These problems include the cases in which the boundary has two or one vertices. Moreover, we obtain ...
    • Kirchhoff index of periodic linear chains 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2015-02)
      Article
      Accés obert
      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
      Accés restringit per política de l'editorial
      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 ...
    • La función de Green y el índice de Kirchhoff de redes cluster 

      Arauz Lombardía, Cristina; Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2010)
      Comunicació de congrés
      Accés obert
      En este trabajo determinamos las Funciones de Green, respecto de un peso fijado sobre los vértices, en una amplia clase de redes compuestas que se engloban bajo la denominación de redes cluster. También aplicamos las ...
    • La inversa de grupo del Laplaciano combinatorio en grafos distancia biregulares 

      Abiad, Aida; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (2023)
      Text en actes de congrés
      Accés obert
      En este trabajo presentamos nuestra contribución al problema inverso para M –matrices en el caso de grafos distancia-biregulares. Dicho problema consiste en determinar cuándo la inversa de grupo del laplaciano combinatorio ...
    • M-Matrix Inverse problem for distance-regular graphs 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2010)
      Comunicació de congrés
      Accés obert
    • 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)
      Text en actes de congrés
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      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 ...
    • Matrix tree theorem for Schrödinger operators on networks 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2017)
      Text en actes de congrés
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