Recent Submissions

  • A new approach to the vakonomic mechanics 

    Llibre Saló, Jaume; Ramírez Ros, Rafael; Sadovskaia Nurimanova, Natalia Guennadievna (2014-11-01)
    Article
    Restricted access - publisher's policy
    The aim of this paper was to show that the Lagrange-d'Alembert and its equivalent the Gauss and Appel principle are not the only way to deduce the equations of motion of the nonholonomic systems. Instead of them we consider ...
  • Emotional inertia: a key to understanding psychotherapy process and outcome 

    Bornas Agustí, F. Xavier; Noguera Batlle, Miquel; Pincus, David; Buela Casal, Gualberto (2014-09-01)
    Article
    Restricted access - publisher's policy
    The processes underlying psychotherapeutic change have increasingly been emphasized in both research and clinical practice. Nonlinear dynamical systems theory (NDS) offers a transdisciplinary scientific approach to the ...
  • An improvement of Ostrowski root-finding method 

    Grau Sánchez, Miguel; Díaz Barrero, José Luis (2006-02)
    Article
    Restricted access - publisher's policy
    An improvement to the iterative method based on the Ostrowski one to compute nonlinear equation solutions, which increases the local order of convergence is suggested. The adaptation of a strategy presented here gives a ...
  • Theoretical dark matter halo kinematics and triaxial shape 

    Salvador-Solé, Eduard; Serra, Sinué; Manrique, Alberto; González Casado, Guillermo (2012-08-21)
    Article
    Open Access
    In a recent paper, Salvador-Solé et al. have derived the typical inner structure of dark matter haloes from that of peaks in the initial random Gaussian density field, determined by the power spectrum of density perturbations ...
  • Dynamical behavior of asteroids near resonance: the 4:1 gap and the 7:2 group 

    Grau Sánchez, Miguel; González Casado, Guillermo (1999-08)
    Article
    Restricted access - publisher's policy
    A comparative study of the evolution of the Sun–Jupiter–Asteroid system near the 4:1 and 7:2 resonances is performed by means of two techniques that proceed differently from the Hamiltonian corresponding to the planar ...
  • Origin and modelling of cold dark matter halo properties: IV. Triaxial ellipticity 

    Salvador-Solé, Eduard; Serra, Sinué; Manrique, Alberto; González Casado, Guillermo (2011-04-15)
    External research report
    Open Access
    In the three preceding papers in the series, we presented a model dealing with the global and small-scale structure and kinematics of hierarchically assembled, virialised, collisionless systems, which correctly accounted ...
  • A technique to composite a modified Newton's method for solving nonlinear equations 

    Grau Sánchez, Miguel; Díaz Barrero, José Luis (2011-05-02)
    External research report
    Open Access
    A zero-finding technique for solving nonlinear equations more efficiently than they usually are with traditional iterative methods in which the order of convergence is improved is presented. The key idea in deriving this ...
  • On computational order of convergence of some multi-precision solvers of nonlinear systems of equations 

    Grau Sánchez, Miguel; Grau Gotés, Mª Ángela; Díaz Barrero, José Luis (2011-05-02)
    External research report
    Open Access
    In this paper the local order of convergence used in iterative methods to solve nonlinear systems of equations is revisited, where shorter alternative analytic proofs of the order based on developments of multilineal ...
  • Uso de sismogramas antiguos para el estudio de paràmetros focales de terremotos ibèricos. 

    Batlló Ortiz, Josep; Teves-Costa, Paula; Stich, Daniel; Macià Jové, Ramon; Morales Soto, Jose (2009)
    Conference lecture
    Open Access
  • On the 16th Hilbert problem for limit cycles on nonsingular algebraic curves 

    Llibre Saló, Jaume; Ramírez Inostroza, Rafael Orlando; Sadovskaia Nurimanova, Natalia Guennadievna (2011-01-15)
    Article
    Restricted access - publisher's policy
    We give an upper bound for the maximum number N of algebraic limit cycles that a planar polynomial vector field of degree n can exhibit if the vector field has exactly k nonsingular irreducible invariant algebraic curves. ...

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