• Higher-order Cartan symmetries in k-symplectic field theory 

    Román Roy, Narciso; Salgado, Modesto; Vilariño, Silvia (2008-04-30)
    Article
    Accés obert
    For k-symplectic Hamiltonian field theories, we study infinitesimal transformations generated by certain kinds of vector fields which are not Noether symmetries, but which allow us to obtain conservation laws by means ...
  • k-cosymplectic formalism in classical field theory: the Skinner–Rusk approach 

    Rey, Angel M.; Román Roy, Narciso; Salgado, Modesto (2006-02-14)
    Article
    Accés obert
    The k-cosymplectic Lagrangian and Hamiltonian formalisms of first-order field theories are reviewed and completed. In particular they are stated for singular almost-regular systems. After that, both formalisms are unified ...
  • Lie-algebroid formulation of k-cosymplectic classical field theories 

    Román Roy, Narciso; Salgado, Modesto; Vilariño, Silvia (2009)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The k-cosymplectic formalism is the generalization to field theories of the cosymplectic formalism, which is the geometric framework for describing non-autonomous dynamical systems. In [5], A. Weinstein introduced a new ...
  • On a kind of Noether symmetries and conservation laws in k-cosymplectic field theory 

    Marrero González, Juan Carlos; Román Roy, Narciso; Salgado, Modesto; Vilariño, Silvia (2011-02)
    Article
    Accés obert
    This paper is devoted to studying symmetries of certain kinds of k-cosymplectic Hamiltonian systems in first-order classical field theories. Thus, we introduce a particular class of symmetries and study the problem of ...
  • On a kind of Noether symmetries and conservation laws in k-cosymplectic field theory 

    Marrero González, Juan Carlos; Román Roy, Narciso; Salgado, Modesto; Vilariño, Silvia (2010-09-15)
    Report de recerca
    Accés obert
    This paper is devoted to studying symmetries of certain kinds of k-cosymplectic Hamiltonian systems in first-order classical field theories. Thus, we introduce a particular class of symmetries and study the problem of ...
  • On the k-symplectic, k-cosymplectic and multisymplectic formalisms of classical field theories 

    Román Roy, Narciso; Rey, Angel M.; Salgado, Modesto; Vilariño, Silvia (2007-05-31)
    Article
    Accés obert
    The objective of this work is twofold: First, we analyze the relation between the kcosymplectic and the k-symplectic Hamiltonian and Lagrangian formalisms in classical field theories. In particular, we prove the equivalence ...
  • On the k-symplectic, k-cosymplectic and multisymplectic formalisms of classical field theories 

    Román Roy, Narciso; Rey, Angel M.; Salgado, Modesto; Vilariño, Silvia (American Institute of Mathematical Sciences, 2011-03)
    Article
    Accés restringit per política de l'editorial
    The objective of this work is twofold: First, we analyze the relation between the k-cosymplectic and the k-symplectic Hamiltonian and Lagrangian formalisms in classical eld theories. In particular, we prove the equivalence ...
  • Symmetries and conservation laws in the Gunther k-symplectic formalism of field theory 

    Román Roy, Narciso; Salgado, Modesto; Vilariño, Silvia (2007-03-12)
    Article
    Accés obert
    This paper is devoted to studying symmetries of k-symplectic Hamiltonian and Lagrangian first-order classical field theories. In particular, we define symmetries and Cartan symmetries and study the problem of ...