Recent Submissions

  • A new approach to the vakonomic mechanics 

    Llibre Saló, Jaume; Ramírez Ros, Rafael; Sadovskaia Nurimanova, Natalia Guennadievna (2014-11-01)
    Article
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    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
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    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
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    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
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    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 ...
  • 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
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    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. ...
  • Linear and nonlinear analyses of EEG dynamics during non-painful somatosensory processing in chronic pain patients 

    Sitges, Carolina; Bornas, Xavier; Llabrés, Jordi; Noguera Batlle, Miquel; Montoya, Pedro (2010-08)
    Article
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    The aim of our study was to characterize brain dynamics of affective modulation of somatosensory processing in chronic pain. We hypothesized that chronic pain patients will show abnormal EEG activity under negative mood ...
  • On the stability of the Earth's fluctuations spectral peaks at their lowest amplitude level 

    Vila Codina, Josep; Macià Jové, Ramon; Sleeman, Reinold; Correig Blanchar, Antoni Maria (2008)
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  • Moment tensor inversion for the 5 july 1930 Montilla earthquake (southern Spain) 

    Batlló Ortiz, Josep; Stich, Daniel; Macià Jové, Ramon; Morales Soto, Jose (2010-09)
    Article
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  • On the dinamics of nonholonomic systems 

    Ramírez Inostroza, Rafael Orlando; Sadovskaia Nurimanova, Natalia Guennadievna (2007)
    Article
    Restricted access - publisher's policy
    In the development of nonholonomic mechanics one can observe recurring confusion over the very equations of motion as well as the deeper questions associated with the geometry and analysis of these equations. First of ...

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