Now showing items 1-20 of 116

    • A boundary control technique to the string-tip-mass system based on a non-symmetric peak-detector model 

      Acho Zuppa, Leonardo; Pujol Vázquez, Gisela (2017)
      Conference report
      Restricted access - publisher's policy
      This paper presents a vibration control design to the string-tip-mass system by using a non-symmetric peakdetector mechanism. Previously, this peak-detector system was used as an easy algorithm to mitigate vibration on ...
    • A comparison of refinement indicators for h-adaptive discontinuous Galerkin methods for the Euler and Navier-Stokes equations 

      Matas Salvá, Antonio (Universitat Politècnica de Catalunya, 2018-09-17)
      Master thesis
      Restricted access - confidentiality agreement
    • A discontinuous galerkin formulation for solid dynamics 

      Peraire Guitart, Jaume; Bonet Carbonell, Javier; Huerta, Antonio; Persson, Per Olof; Vidal Seguí, Yolanda (Omnipress, 2006)
      Lecture
      Open Access
    • A finite point method for three-dimensional compressible flow 

      Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo (2007-09)
      External research report
      Open Access
    • A generalization of the Allen–Cahn equation 

      Miranville, Alain; Quintanilla de Latorre, Ramón (2015-04-01)
      Article
      Open Access
      Our aim in this paper is to study generalizations of the Allen–Cahn equation based on a modification of the Ginzburg–Landau free energy proposed in S. Torabi et al. (2009, A new phase-field model for strongly anisotropic ...
    • A gradient estimate for nonlocal minimal graphs 

      Cabré Vilagut, Xavier; Cozzi, Matteo (2019-04-01)
      Article
      Open Access
      We consider the class of measurable functions defined in all of Rn that give rise to a nonlocal minimal graph over a ball of Rn. We establish that the gradient of any such function is bounded in the interior of the ball ...
    • A hybridizable discontinuous Galerkin phase-field model for brittle fracture 

      Muixí Ballonga, Alba; Fernández Méndez, Sonia; Rodríguez Ferran, Antonio (2019-05-01)
      Article
      Open Access
      Phase-field models for brittle fracture consider smeared representations of cracks, which are described by a continuous field that varies abruptly in the transition zone between unbroken and broken states. Computationally, ...
    • A Liouville type result for fractional Schrödinger operators in 1D 

      Felipe Navarro, Juan Carlos (Universitat Politècnica de Catalunya, 2017-01)
      Master thesis
      Open Access
      The aim of this master's thesis is to obtain an alternative and original proof of a Liouville type result for fractional Schrödinger operators in 1D without using a local extension problem, in the spirit of the recent work ...
    • A Note on the Dynamics of Piecewise-Autonomous Bistable Parabolic Equations 

      Fiedler, Bernold; Rocha, Carlos; Salazar, Domingo; Solà-Morales Rubió, Joan de (2000)
      Article
      Open Access
    • A Parameterized multi-step Newton method for solving systems of nonlinear equations 

      Ahmad, Fayyaz; Tohidi, Emran; Carrasco, Juan A. (2016-03-01)
      Article
      Open Access
      We construct a novel multi-step iterative method for solving systems of nonlinear equations by introducing a parameter. to generalize the multi-step Newton method while keeping its order of convergence and computational ...
    • A PDE approach of inflammatory phase dynamics in diabetic wounds. 

      Consul Porras, M. Nieves; Oliva, Sergio M.; Pellicer, Marta (2014)
      Article
      Open Access
      The objective of the present paper is the modeling and analysis of the dynamics of macrophages and certain growth factors in the in ammatory phase, the rst one of the wound healing process. It is the phase where there ...
    • A Perturbation argument for a Monge–Ampère type equation arising in optimal transportation 

      Caffarelli, Luis; González Nogueras, María del Mar; Nguyen, Truyen (2014-05-01)
      Article
      Restricted access - publisher's policy
      We prove some interior regularity results for potential functions of optimal transportation problems with power costs. The main point is that our problem is equivalent to a new optimal transportation problem whose cost ...
    • A result on class-C1 linearization of contractions in infinite dimensions 

      Munhoz Rodrigues, Hildebrando; Solà-Morales Rubió, Joan de (2002)
      Article
      Open Access
    • Adjoint-based PDE-constrained optimization using HPC techniques 

      Peredo Andrade, Oscar Francisco (Universitat Politècnica de Catalunya, 2013-10-02)
      Master thesis
      Open Access
      This work focuses in the utilization of current HPC technologies to explore mathematical optimization algorithms in which a PDE acts as main constraint. A development framework is proposed, together with a novel application ...
    • An example on Lyapunov stability and linearization 

      Munhoz Rodrigues, Hildebrando; Solà-Morales Rubió, Joan de (2020-01-01)
      Article
      Restricted access - publisher's policy
      The purpose of this paper is to present an example of a (in the Fréchet sense) discrete dynamical system in a infinite-dimensional separable Hilbert space for which the origin is an exponentially asymptotically stable ...
    • An improved harmonic load flow formulation 

      Rashid, Asim; Mesas García, Juan José; Sainz Sapera, Luis (Taylor & Francis, 2019-10-21)
      Article
      Restricted access - publisher's policy
      The paper contributes an improved harmonic load flow formulation with fewer convergence problems but the same accurate results as traditional formulations. The proposed formulation approaches the harmonic load flow problem ...
    • Analysis for the strain gradient theory of porous thermoelasticity 

      Fernández, José Ramón; Magaña Nieto, Antonio; Masid, Maria; Quintanilla de Latorre, Ramón (2019-01-01)
      Article
      Open Access
      In this paper, we analyse a model involving a strain gradient thermoelastic rod with voids. Existence and uniqueness, as well as an energy decay property, are proved by means of the semigroup arguments. The variational ...
    • Analytical solution of the electromagnetic field of a current carrying conductor in multi-layer media 

      Esteban De La Iglesia, Pablo (Universitat Politècnica de Catalunya, 2018-05)
      Bachelor thesis
      Open Access
      Se trata de hallar el campo magnético producido por un hilo infinitesimal de corriente cuando hay placas, paralelas entre ellas, de distintos materiales. Para ello con las ecuaciones de Maxwell se obtiene una EDP que se ...
    • Analyticity in porous-thermoelasticity with microtemperatures 

      Pamplona, Paulo Xavier; Muñoz Rivera, Jaime E.; Quintanilla de Latorre, Ramón (2012-10-15)
      Article
      Restricted access - publisher's policy
      In this note we study the analyticity of the solutions to the one-dimensional porouselasticity problem with temperatures and microtemperatures when viscoelasticity and porous viscosity effects are also present. We show ...
    • Antisymmetry of solutions for some weighted elliptic problems 

      Cabré Vilagut, Xavier; Lucia, Marcello; Sanchón, Manel; Villegas, Salvador (2018-03-17)
      Article
      Open Access
      This article concerns the antisymmetry, uniqueness, and monotonicity properties of solutions to some elliptic functionals involving weights and a double well potential. In the one-dimensional case, we introduce the continuous ...