Exploració per tema "Classificació AMS::39 Difference and functional equations::39B Functional equations and inequalities"

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    • 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 ...

    • 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 ...