Ara es mostren els items 58-77 de 187

    • 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)
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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
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      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
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      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)
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      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)
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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)
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    • Mean first passage time for distance-biregular graphs 

      Jiménez Jiménez, María José; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2022)
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    • Mejorando las técnicas de Tomografía de Impedancia Eléctrica 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Samperio Valdivieso, Álvaro (2023)
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      En aplicaciones médicas, la Tomografía de Impedancia Eléctrica (TIE) representa una técnica de imagen no invasiva y libre de radiación para recuperar la distribución de conductividades dentro del cuerpo bajo observación, ...
    • On spectra of symmetric Jacobi matrices 

      Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José (2021)
      Comunicació de congrés
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      A square symmetric matrix A is said bisymmetric if AS=SA, whereS is the matrix with ones along the secondary diagonal and zeroselsewhere. We denote by J(a,b) the real symmetric Jacobi matrixwith main ...
    • Overdetermined partial boundary value problems on finite networks 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2015-03-01)
      Article
      Accés obert
      In this study, we define a class of non-self-adjoint boundary value problems on finite networks associated with Schrodinger operators. The novel feature of this study is that no data are prescribed on part of the boundary, ...
    • Overdetermined partial resolvent kernels for finite networks 

      Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2016-03-01)
      Article
      Accés obert
      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 ...
    • PageRank: A different point of view 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Mitjana Riera, Margarida (2022)
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    • Perturbations of discrete elliptic operators 

      Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (Elsevier, 2015)
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      Accés obert
    • Perturbing networks 

      Mitjana Riera, Margarida; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2012)
      Comunicació de congrés
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      Semi-definite positive Schrödinger operators on finite connected networks are particular examples of a general class of self-adjoint operators called elliptic operators. Any elliptic operator defines an automorphism on the ...
    • Potential Theory for boundary value problems on finite networks 

      Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2006-07)
      Article
      Accés obert
      We aim here at analyzing self-adjoint boundary value problems on finite networks associated with positive semi-definite Schrödinger operators. In addition, we study the existence and uniqueness of solutions and its ...