Now showing items 1-20 of 33

    • A novel collision model for inextensible textiles and its experimental validation 

      Coltraro, Franco; Amorós Torrent, Jaume; Alberich Carramiñana, Maria; Torras, Carme (Elsevier, 2024-04)
      Article
      Open Access
      In this work, we introduce a collision model specifically tailored for the simulation of inextensible textiles. The model considers friction, contacts, and inextensibility constraints all at the same time without any ...
    • A representation of cloth states based on a derivative of the Gauss linking integral 

      Coltraro, Franco; Fontana, Josep; Amorós Torrent, Jaume; Alberich Carramiñana, Maria; Borràs Sol, Júlia; Torras, Carme (Elsevier, 2023-11-15)
      Article
      Open Access
      Robotic manipulation of cloth is a complex task because of the infinite-dimensional shape-state space of textiles, which makes their state estimation very difficult. In this paper we introduce the dGLI Cloth Coordinates, ...
    • An inextensible model for the robotic manipulation of textiles 

      Coltraro, Franco; Amorós Torrent, Jaume; Alberich Carramiñana, Maria; Torras, Carme (2022-01-01)
      Article
      Open Access
      We introduce a new isometric strain model for the study of the dynamics of cloth garments in a moderate stress environment, such as robotic manipulation in the neighborhood of humans. This model treats textiles as surfaces ...
    • Computing jumping numbers and multiplier ideals in two-dimensional regular local rings 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran (Universitat de Barcelona. Edicions i Publicacions, 2014)
      Conference report
      Restricted access - publisher's policy
      We give a new algorithm that computes the jumping numbers with their multiplicities and multiplier ideals of any ideal in a regular two-dimensional local ring.
    • Constancy regions of mixed multiplier ideals in two-dimensional local rings with rational singularities 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)
      Article
      Open Access
      The aim of this paper is to study mixed multiplier ideals associated with a tuple of ideals in a two-dimensional local ring with a rational singularity. We are interested in the partition of the real positive orthant given ...
    • Depth from the visual motion of a planar target induced by zooming 

      Alenyà Ribas, Guillem; Alberich Carramiñana, Maria; Torras, Carme (IEEE, 2007)
      Conference report
      Open Access
      Robot egomotion can be estimated from an acquired video stream up to the scale of the scene. To remove this uncertainty (and obtain true egomotion), a distance within the scene needs to be known. If no a priori knowledge ...
    • Determining plane curve singularities from its polars 

      González Alonso, Víctor; Alberich Carramiñana, Maria (2016-01-10)
      Article
      Open Access
      This paper addresses a very classical topic that goes back at least to Plücker: how to understand a plane curve singularity using its polar curves. Here, we explicitly construct the singular points of a plane curve singularity ...
    • Developable surfaces with prescribed boundary 

      Alberich Carramiñana, Maria; Amorós Torrent, Jaume; Coltraro, Franco (Springer-Birkhäuser, 2021)
      Part of book or chapter of book
      Open Access
      It is proved that a generic simple, closed, piecewise regular curve in space can be the boundary of only infinitely many developable surfaces with nonvanishing mean curvature. The relevance of this result in the context ...
    • Effective computation of base points of ideals in two-dimensional local rings 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Blanco Fernández, Guillem (2018-01-04)
      Article
      Open Access
      © 2018 Elsevier Ltd. We provide an algorithm that allows to describe the minimal log-resolution of an ideal in a smooth complex surface from the minimal log-resolution of its generators. In order to make this algorithm ...
    • Experiència pràctica de comunicació de Matemàtiques a la ciutadania i a secundària 

      Alberich Carramiñana, Maria (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2012-02-07)
      Conference lecture / Conference report
      Open Access
    • Experiència pràctica de comunicació de Matemàtiques a la ciutadania i a secundària – 2a fase 

      Alberich Carramiñana, Maria; Barja Yáñez, Miguel Ángel; Borràs Sol, Júlia; Plans Berenguer, Bernat; Quer Bosor, Jordi; Thomas, Federico; Torras, Carme; Xambó Descamps, Sebastián (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
      Conference report / Conference lecture
      Restricted access - author's decision
      El projecte implementa experiències pràctiques dels estudis universitaris de matemàtiques (grau, llicenciatura i màsters) en l'àmbit de la docència i la divulgació científica. La finalitat divulgativa pretén fomentar ...
    • Flagged parallel manipulators 

      Alberich Carramiñana, Maria; Thomas, Federico; Torras, Carme (IEEE, 2007)
      Article
      Open Access
      The conditions for a parallel manipulator to be flagged can be simply expressed in terms of linear dependencies between the coordinates of its leg attachments, both on the base and on the platform. These dependencies permit ...
    • ImaginaryBCN: cuaderno de seguimiento 

      Alberich Carramiñana, Maria; Buendia Bordera, Jordi; Dachs Cadefau, Ferran; Sabater Montaner, Anna; Sánchez Díaz, Emilio José (2012)
      Other
      Open Access
      Guia didàctica de l'exposició Imaginary/BCN. La mirada matemàtica, les arts i el patrimoni. Barcelona, del 17 de març al 6 de maig de 2012
    • Monomial generators of complete planar ideals 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Blanco Fernández, Guillem (2020-01-01)
      Article
      Open Access
      We provide an algorithm that computes a set of generators for any complete ideal in a smooth complex surface. More interestingly, these generators admit a presentation as monomials in a set of maximal contact elements ...
    • Morse cell decomposition and parametrization of surfaces from point clouds 

      Alberich Carramiñana, Maria; Amorós Torrent, Jaume; Coltraro, Franco; Torras, Carme; Verdaguer López, Miquel (Publicacions de la Universitat Jaume I, 2022)
      Conference report
      Open Access
      An algorithm for the reconstruction of a surface from a point sample is presented. It proceeds directly from the point-cloud to obtain a cellular decomposition of the surface derived from a Morse function. No intermediate ...
    • Multiplicities of jumping points for mixed multiplier ideals 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran; González Alonso, Víctor (Springer, 2019-01-01)
      Article
      Open Access
      In this paper we make a systematic study of the multiplicity of the jumping points associated to the mixed multiplier ideals of a family of ideals in a complex surface with rational singularities. In particular we study ...
    • Multiplicity and Poincaré series for mixed multiplier ideals 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran; González Alonso, Víctor (2018)
      Conference report
      Restricted access - publisher's policy
    • Multiplicity and Poincaré series for mixed multiplier ideals 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran; González Alonso, Víctor (2018-09)
      Article
      Open Access
    • Multiplier ideals in two-dimensional local rings with rational singularities 

      Alberich Carramiñana, Maria; Álvarez Montaner, Josep; Dachs Cadefau, Ferran (2016)
      Article
      Restricted access - publisher's policy
      The aim of this paper is to study jumping numbers and multiplier ideals of any ideal in a two-dimensional local ring with a rational singularity. In particular we reveal which information encoded in a multiplier ideal ...
    • New algebraic conditions for the identification of the relative position of two coplanar ellipses 

      Alberich Carramiñana, Maria; Elizalde, Borja; Thomas, Federico (2017-05-01)
      Article
      Open Access
      The identification of the relative position of two real coplanar ellipses can be reduced to the identification of the nature of the singular conics in the pencil they define and, in general, their location with respect to ...