Exploració per autor "Román Roy, Narciso"
Ara es mostren els items 62-81 de 109
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Lagrangian-Hamiltonian unified formalism for autonomous higher order dynamical systems
Prieto Martínez, Pedro Daniel; Román Roy, Narciso (2011-09-23)
Article
Accés restringit per acord de confidencialitatThe Lagrangian-Hamiltonian unified formalism of R. Skinner and R. Rusk was originally stated for autonomous dynamical systems in classical mechanics. It has been generalized for non-autonomous first-order mechanical ... -
Lagrangian-Hamiltonian unified formalism for autonomous higher-order dynamical systems
Prieto Martínez, Pedro Daniel; Román Roy, Narciso (2011-07-18)
Report de recerca
Accés restringit per acord de confidencialitatResearch paper -
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'editorialThe 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 ... -
MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2012-03-30)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2015-04-16)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2012-06-08)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2014-06-02)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2013-06-14)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2015-07-01)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2015-05-29)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2014-04-03)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA
Román Roy, Narciso (Universitat Politècnica de Catalunya, 2014-07-02)
Examen
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MODELS MATEMÀTICS DE LA FÍSICA | Parcial 2Q
Batlle Arnau, Carles; Román Roy, Narciso (Universitat Politècnica de Catalunya, 2024-03-21)
Examen
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More insights into symmetries in multisymplectic field theories
Guerra IV, Arnoldo; Román Roy, Narciso (2023-02-01)
Article
Accés obertThis work provides a general overview for the treatment of symmetries in classical field theories and (pre)multisymplectic geometry. The geometric characteristics of the relation between how symmetries are interpreted in ... -
Multicontact formulation for non-conservative field theories
de León Rodríguez, Manuel; Gaset Rifà, Jordi; Muñoz Lecanda, Miguel Carlos; Rivas Guijarro, Xavier; Román Roy, Narciso (Institute of Physics (IOP), 2023-01-13)
Article
Accés obertA new geometric structure inspired by multisymplectic and contact geometries, which we call multicontact structure, is developed to describe non-conservative classical field theories. Using the differential forms that ... -
Multisymplectic constraint analysis of scalar field theories, Chern-Simons gravity, and bosonic string theory
Gomis Torné, Joaquim; Guerra IV, Arnoldo; Román Roy, Narciso (Elsevier, 2023-02)
Article
Accés obertThe (pre)multisymplectic geometry of the De Donder–Weyl formalism for field theories is further developed for a variety of field theories including a scalar field theory from the canonical Klein-Gordon action, the electric ... -
Multisymplectic Lagrangian and Hamiltonian formalisms of classical field theories
Román Roy, Narciso (2009)
Article
Accés obertThis review paper is devoted to presenting the standard multisymplectic formulation for describing geometrically classical field theories, both the regular and singular cases. First, the main features of the Lagrangian ... -
Multisymplectic Lagrangian and Hamiltonian formalisms of First-order Classical Field theories
Román Roy, Narciso (2006-03-03)
Article
Accés obertThis review paper is devoted to presenting the standard multisymplectic formulation for describing geometrically first-order classical field theories, both the regular and singular cases. First, the main features of the ... -
Multisymplectic unified formalism for Einstein-Hilbert gravity
Gaset Rifà, Jordi; Román Roy, Narciso (2018-03-01)
Article
Accés obertWe present a covariant multisymplectic formulation for the Einstein-Hilbert model of General Relativity. As it is described by a second-order singular Lagrangian, this is a gauge field theory with constraints. The use of ... -
New contributions to the Hamiltonian and Lagrangian contact formalisms for dissipative mechanical systems and their symmetries
Gaset Rifà, Jordi; Gràcia Sabaté, Francesc Xavier; Muñoz Lecanda, Miguel Carlos; Rivas Guijarro, Xavier; Román Roy, Narciso (2020-06-01)
Article
Accés obertWe provide new insights into the contact Hamiltonian and Lagrangian formulations of dissipative mechanical systems. In particular, we state a new form of the contact dynamical equations, and we review two recently presented ...