Exploració per tema "Functional equations"

Ara es mostren els items 1-6 de 6

    • A new positive time-frequency distribution 

      Rodríguez Fonollosa, Javier; Nikias, C L (1994)
      Text en actes de congrés
      Accés obert
      This article studies the formulation of new members of the Cohen-Posch (1985) class of positive time-frequency energy distributions. Members of this class are always positive functionals and satisfy the marginal constraints. ...

    • Asymptotic behaviour of the domain of analyticity of invariant curves of the standard map 

      Martínez-Seara Alonso, M. Teresa; Villanueva Castelltort, Jordi (1999)
      Article
      Accés obert
      In this paper we consider the standard map, and we study the invariant curve obtained by analytical continuation, with respect to the perturbative parameter E, of the invariant circle of rotation number the golden mean ...

    • Gramáticas discriminantes y funciones discriminantes lineales generalizadas 

      García Fornes, Ana; Ruiz Calomarde, Antonio; Vidal Ruiz, Enrique; Cascuberta Nolla, Francisco (Universitat Politècnica de Catalunya. Centre de Càlcul, 1989)
      Article
      Accés obert
      Las Gramáticas Discriminantes constituyen una aproximación para la clasificación de frases generadas por Gramáticas cuando la presencia de ruidos y distorsiones hace difícil la aplicación de las Técnicas usuales de Análisis ...

    • On inner product spaces-II 

      Kannappan, Palaniappan (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1995)
      Article
      Accés obert
      Among normal linear spaces, the inner product spaces (i.p.s.) are particularly interesting. Many characterizations of i.p.s. among linear spaces are known using various functional equations. Three functional equations ...

    • On two conditional entropies without probability 

      Vivona, D.; Divari, M. (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2007)
      Article
      Accés obert
      We generalize the conditional entropy without probability given by Benvenuti in [1] and we recognize that this form is the most general compatible with the given properties. Then we compare our form of conditional entropy ...

    • Three-dimensional quasiperiodic torsional flows in rotating spherical fluids at very low Prandtl numbers 

      Sánchez Umbría, Juan; Net Marcé, Marta (2021-11-04)
      Article
      Accés obert
      The aim of this study is to determine through numerical simulations the extent and robustness of the three-dimensional torsional dynamics of the thermal convection in rotating spherical fluids at very low Prandtl numbers. ...