Now showing items 1-20 of 58

• #### Acte de reconeixement al professor Sebastià Xambó a l'FME ﻿

(2015-09-15)
Audiovisual
Open Access
La Facultat de Matemàtiques i Estadística de la UPC organitza un acte de reconeixement a la trajectòria acadèmica del professor Sebastià Xambó, que fou degà de l'FME des de l'any 2003 fins l'any 2009. L'acte tindrà lloc ...
• #### Computing the Green function for a Dirichlet problem on spider networks ﻿

(2018)
Conference report
Open Access
• #### Curs de matemàtiques : àlgebra lineal i càlcul infinitesimal : quadern de pràctiques amb ordinador ﻿

(Universitat Politècnica de Catalunya, 1996)
Lecture notes
Open Access
• #### Cycles in the cycle prefix digraph ﻿

(2000)
Article
Open Access
Cycle prefix digraphs are a class of Cayley coset graphs with many remarkable properties such as symmetry, large number of nodes for a given degree and diameter, simple shortest path routing, Hamiltonicity, optimal ...
• #### Discrete trace function and Poincaré inequality for the study of some linear systems ﻿

(2019)
Conference report
Open Access
• #### Effective resistances and Kirchhoff index in subdivision networks ﻿

(Taylor & Francis, 2016-11-12)
Article
Open Access
We define a subdivision network ¿S of a given network ¿; by inserting a new vertex in every edge, so that each edge is replaced by two new edges with conductances that fulfill electrical conditions on the new network. In ...
• #### Effective resistances and Kirchhoff index in subdivision networks ﻿

(2016)
Conference report
Restricted access - publisher's policy
In this work we compute the effective resistances and the Kirchhoff Index of subdivision networks in terms of the corresponding parameters of the original network. Our techniques are based on the study of discrete operators ...
• #### Eigenvalues with respect to a weight for discrete elliptic boundary value problems ﻿

(2019)
Conference report
Open Access
• #### El espectro del digrafo mariposa ﻿

(A. Márquez, 2002-09)
Conference report
Open Access
La determinación del espectro de un grafo es de interés por la conexión que los autovalores y sus multiplicidades tienen con invariantes y propiedades topológicas del grafo, como el diámetro, conectividad, expansión, ...
• #### Fonaments d'estadística aplicada : pràctiques amb Minitab ﻿

(Universitat Politècnica de Catalunya, 1997)
Practice
Open Access
• #### Funciones de green en redes producto ﻿

(Universidad de Cádiz, 2017)
Conference report
Restricted access - publisher's policy
En esta comunicación presentaremos la versión discreta del método de separación de variables para determinar la función de Green de redes producto en términos de la función de Green de uno de las redes factores y los ...
• #### Generalized linear polyominoes, Green functions and Green matrices ﻿

(2012)
Conference lecture
Open Access
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 ﻿

(2019)
Conference report
Open Access
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 ...
• #### Gossiping in chordal rings under the line model ﻿

(2000)
Article
Open Access
The line model assumes long distance calls between non neighboring processors. In this sense, the line model is strongly related to circuit-switched networks, wormhole routing, optical networks supporting wavelength ...
• #### Green functions for boundary value problems on product networks ﻿

(2019)
Conference report
Open Access
• #### Green functions on product networks ﻿

(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 ﻿

(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 Ã— 2 lattice. In this paper, we obtain the ...
• #### Green operators of networks with a new vertex ﻿

(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 ﻿

(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 ﻿

(2016)
Conference report
Open Access