Exploració per autor "Encinas Bachiller, Andrés Marcos"
Ara es mostren els items 66-85 de 187
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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
Accés obertWe 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
Accés obert -
Mean first passage time for distance-biregular graphs
Jiménez Jiménez, María José; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2022)
Text en actes de congrés
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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)
Text en actes de congrés
Accés obertEn 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
Accés obertA 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 obertIn 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 obertIn [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)
Text en actes de congrés
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Perturbations of discrete elliptic operators
Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (Elsevier, 2015)
Article
Accés obert -
Perturbing networks
Mitjana Riera, Margarida; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2012)
Comunicació de congrés
Accés obertSemi-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 obertWe 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 ... -
Problema 168
Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (Real Sociedad Matemática Española, 2010)
Article
Accés obert -
Problemas de contorno discretos
Encinas Bachiller, Andrés Marcos (Universitat Politècnica de Catalunya, 2001-10-01)
Tesi
Accés obertEn este trabajo se ha desarrollado un cálculo vectorial sobre estructuras discretas, análogo al de los modelos continuos. Para ello se ha considerado como espacio subyacente un multigrafo finito o variedad discreta y se ... -
Random walks associated with symmetric M-matrices
Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Martin Llopis, Álvar (Elsevier, 2023-10)
Article
Accés obertIn this paper we generalize the transition probability matrix for a random walk on a finite network by defining the transition probabilities througha symmetric M-matrix. Usually, the walker jumps from a vertex to a ... -
Recovering piecewise constant conductances on networks with boundary
Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, María José; Samperio Valdivieso, Álvaro (2023)
Text en actes de congrés
Accés obertThe problem of recovering the conductances of a well-connected spider net-work with boundary from its Dirichlet-to-Robin map is ill-posed for large networks, so despite there is an exact algorithm to solve it [1], the ... -
Recovering the conductances on grids
Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos (2014)
Article
Accés restringit per política de l'editorialIn this work, we present an algorithm to the recovery of the conductance of a 2– dimensional grid. The algorithm is based in the solution of some overdetermined partial boundary value problems defined on the grid. -
Recovering the conductances on grids: A theoretical justification
Arauz Lombardía, Cristina; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Mitjana Riera, Margarida (2016)
Article
Accés obertIn this work, we present an overview of the work developed by the authors in the context of inverse problems on nite networks. This study performs an extension of the pioneer studies by E.B. Curtis and J.A. Morrow, ... -
Redes estrella con la M-propiedad
Encinas Bachiller, Andrés Marcos (Editorial Universidad de Almería, 2015)
Text en actes de congrés
Accés obertEn este trabajo hacemos una aportación al problema inverso de M –matrices irreducibles, simétricas y singulares, que consiste en determinar c uándo su inversa de grupo es también una M –matriz. Mostramos primero que las ... -
Regular boundary value problems on a path throughout Chebyshev Polynomials
Bendito Pérez, Enrique; Carmona Mejías, Ángeles; Encinas Bachiller, Andrés Marcos; Gesto Beiroa, José Manuel (2006-08)
Article
Accés obertIn this work we study the different types of regular boundary value problems on a path associated with the Schrödinger operator. In particular, we obtain the Green function for each problem and we emphasize the case of ...