Now showing items 1-20 of 34

    • Alan Turing: màquines i enigmes 

      Padró Laimon, Carles (2015-09-30)
      Audiovisual
      Open Access
      La lliçó inaugural, impartida per Carles Padró, professor titular de la UPC al Departament de Matemàtica Aplicada IV, portarà per títol: Alan Turing, màquines i enigmes. En el decurs de la conferència s'explicarà les dues ...
    • Bipartite secret sharing and staircases 

      Csirmaz, Laszlo; Matús, Frantisek; Padró Laimon, Carles (Elsevier, 2024-05-01)
      Article
      Open Access
      Bipartite secret sharing schemes have a bipartite access structure in which the set of participants is divided into two parts and all participants in the same part play an equivalent role. Such a bipartite scheme can be ...
    • CÀLCUL EN UNA VARIABLE 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2016-01-14)
      Exam
      Restricted access to the UPC academic community
    • CÀLCUL EN UNA VARIABLE 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2017-01-12)
      Exam
      Restricted access to the UPC academic community
    • CÀLCUL EN UNA VARIABLE 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2018-01-08)
      Exam
      Restricted access to the UPC academic community
    • CÀLCUL EN UNA VARIABLE 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2016-06-30)
      Exam
      Restricted access to the UPC academic community
    • CÀLCUL EN UNA VARIABLE 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2017-07-06)
      Exam
      Restricted access to the UPC academic community
    • Common information, matroid representation, and secret sharing for matroid ports 

      Michael, Bamiloshin; Ben-Efraim, Aner; Farràs Ventura, Oriol; Padró Laimon, Carles (2020-09-28)
      Article
      Open Access
      Linear information and rank inequalities as, for instance, Ingleton inequality, are useful tools in information theory and matroid theory. Even though many such inequalities have been found, it seems that most of them ...
    • CRIPTOLOGIA-FINAL 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2023-01-11)
      Exam
      Restricted access to the UPC academic community
    • CRYPTOLOGY 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2021-01)
      Exam
      Restricted access to the UPC academic community
    • CRYPTOLOGY 

      Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2018-01-08)
      Exam
      Restricted access to the UPC academic community
    • Extending Brickell-Davenport theorem to non-perfect secret sharing schemes 

      Farràs Ventura, Oriol; Padró Laimon, Carles (2015-02)
      Article
      Open Access
      One important result in secret sharing is the Brickell-Davenport Theorem: every ideal perfect secret sharing scheme de nes a matroid that is uniquely determined by the access structure. Even though a few attempts have been ...
    • Finding lower bounds on the complexity of secret sharing schemes by linear programming 

      Padró Laimon, Carles; Vázquez González, Leonor; Yang, An (2013-05-01)
      Article
      Open Access
      Optimizing the maximum, or average, length of the shares in relation to the length of the secret for every given access structure is a difficult and long-standing open problem in cryptology. Most of the known lower bounds ...
    • GEOMETRIA DIFERENCIAL 

      Amorós Torrent, Jaume; Gálvez Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2018-05-01)
      Exam
      Restricted access to the UPC academic community
    • GEOMETRIA DIFERENCIAL 

      Amorós Torrent, Jaume; Gálvez Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2019-05-21)
      Exam
      Restricted access to the UPC academic community
    • GEOMETRIA DIFERENCIAL | EXTRAORDINARI 

      Amorós Torrent, Jaume; Gález Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2019-07-07)
      Exam
      Restricted access to the UPC academic community
    • GEOMETRIA DIFERENCIAL | EXTRAORDINARI 

      Amorós Torrent, Jaume; Gálvez Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2020-07-15)
      Exam
      Restricted access to the UPC academic community
    • GEOMETRIA DIFERENCIAL | EXTRAORDINARI 

      Amorós Torrent, Jaume; Gálvez Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2021-07-07)
      Exam
      Restricted access to the UPC academic community
    • GEOMETRIA DIFERENCIAL | FINAL 

      Amorós Torrent, Jaume; Gálvez Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2019-06-04)
      Exam
      Restricted access to the UPC academic community
    • GEOMETRiA DIFERENCIAL | FINAL 

      Amorós Torrent, Jaume; Gálvez Carrillo, Imma; Padró Laimon, Carles (Universitat Politècnica de Catalunya, 2020-06-15)
      Exam
      Restricted access to the UPC academic community