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Listar por autor "Quintero, Niurka R."
Mostrando ítems 21-40 de 70
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Trabajo Fin de Grado
Estudio del efecto de la fricción en el movimiento de proyectiles y osciladores
García Luna, Manuel Jesús (2021)El rozamiento es un fenómeno que si bien en la vida diaria pasa desapercibido, en la ingeniería es crucial. Desde elevar ...
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Artículo
Exact stationary solutions of the parametrically driven and damped nonlinear Dirac equation
Quintero, Niurka R.; Sánchez-Rey, Bernardo (AIP Publishing, 2019)Two exact stationary soliton solutions are found in the parametrically driven and damped nonlinear Dirac equation. The ...
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Artículo
Existence of internal modes of sine-Gordon kinks [Rapid Communications]
Quintero, Niurka R.; Sánchez Sánchez, Ángel; Mertens, Franz G. (2000)We study whether or not sine-Gordon kinks exhibit internal modes or ‘‘quasimodes.’’ By considering the response of the ...
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Artículo
Forced nonlinear Schrödinger equation with arbitrary nonlinearity
Cooper, Fred; Khare, Avinash; Quintero, Niurka R.; Mertens, Franz G.; Saxena, Avadh (2012)We consider the nonlinear Schrödinger equation (NLSE) in 1+1 dimension with scalar-scalar self-interaction g2κ+1(ψ☆ψ)κ+1 ...
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Ponencia
Functionals of harmonics functions
Quintero, Niurka R.; Cuesta Ruiz, José Antonio; Álvarez Nodarse, Renato (Multidisciplinary Digital Publishing Institute, 2018-01)Let CsT, with T > 0, be the set of continuous, T-periodic functions f : R → Rs, and let Γ : CsT → R be a real functional on CsT.
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Artículo
General approach for dealing with dynamical systems with spatiotemporal periodicities
Casado Pascual, Jesús; Cuesta, José A.; Quintero, Niurka R.; Álvarez Nodarse, Renato (American Physical Society, 2015)Dynamical systems often contain oscillatory forces or depend on periodic potentials. Time or space periodicity is reflected ...
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Artículo
Generalized traveling-wave method, variational approach, and modified conserved quantities for the perturbed nonlinear Schrödinger equation.
Quintero, Niurka R.; Mertens, Franz G.; Bishop, Alan R. (2010)The generalized traveling wave method (GTWM) is developed for the nonlinear Schrödinger equation (NLSE) with general ...
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Artículo
Internal Mode Mechanism for Collective Energy Transport in Extended Systems
Sánchez Sánchez, Ángel; Quintero, Niurka R.; Mertens, Franz G.; Morales-Molina, Luis (2003)We study directed energy transport in homogeneous nonlinear extended systems in the presence of homogeneous ac forces and ...
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Artículo
Kink ratchet induced by a time-dependent symmetric field potential
Sánchez-Rey, Bernardo; Casado Pascual, Jesús; Quintero, Niurka R. (American Physical Society, 2016)The ratchet effect of a sine-Gordon kink is investigated in the absence of any external force while the symmetry of the ...
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Artículo
Kink topology control by high-frequency external forces in nonlinear Klein-Gordon models
Álvarez Nodarse, Renato; Quintero, Niurka R.; Mertens, Franz G. (American Physical Society, 2014)A method of averaging is applied to study the dynamics of a kink in the damped double sine-Gordon equation driven by both ...
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Proyecto Fin de Carrera
La Paradoja de Parrondo y su relación con el efecto ratchet
Fernández Sánchez, Eduardo (2014) -
Artículo
Lagrangian Formalism in Perturbed Nonlinear Klein-Gordon Equations
Quintero, Niurka R.; Zamora-Sillero, Elías (Elsevier, 2004)We develop an alternative approach to study the effect of the generic perturbation (in addition to explicitly considering ...
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Artículo
Nonequivalence of phonon modes in the sine-Gordon equation
Quintero, Niurka R.; Kevrekidis, Panayotis G. (2001)We study the resonances in the sine-Gordon equation driven by an ac force using a linear perturbation theory. We show that ...
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Artículo
Nonlinear Dirac equation solitary waves in external fields
Mertens, Franz G.; Quintero, Niurka R.; Cooper, Fred; Khare, Avinash; Saxena, Avadh (2012)We consider nonlinear Dirac equations (NLDE's) in the 1+1 dimension with scalar-scalar self-interaction g2κ+1(Ψ¯¯¯Ψ)κ+1 ...
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Artículo
Nonlinear Dirac equation solitary waves under a spinor force with different components
Mertens, Franz G.; Cooper, Fred; Sihong, Shao; Quintero, Niurka R.; Saxena, Avadh; Bishop, Alan R. (IOP, 2017)We consider the nonlinear Dirac (NLD) equation in 1+1 dimension with scalar-scalar selfinteraction in the presence of ...
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Artículo
Nonlinear Schrödinger equation with spatiotemporal perturbations
Mertens, Franz G.; Quintero, Niurka R.; Bishop, Alan R. (2010)We investigate the dynamics of solitons of the cubic nonlinear Schrödinger equation (NLSE) with the following perturbations: ...
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Artículo
Nonlinear Schrödinger solitons oscillate under a constant external force
Mertens, Franz G.; Quintero, Niurka R.; Bishop, Alan R. (2013)We investigate the dynamics of solitons of the cubic nonlinear Schrödinger equation with an external time-independent force ...
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Artículo
Nonsinusoidal current and current reversals in a gating ratchet
Dinis, Luis; Quintero, Niurka R. (American Physical Society, 2015)In this work, the ratchet dynamics of Brownian particles driven by an external sinusoidal (harmonic) force is investigated. ...
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Artículo
On recurrence relations for radial wave functions for the N-th dimensional oscillators and hydrogenlike atoms: analytical and numerical study
Álvarez Nodarse, Renato; Cardoso, José Luis; Quintero, Niurka R. (2006)Using a general procedure for finding recurrence relations for hypergeometric functions and polynomials introduced by ...
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Artículo
On some tridiagonal k-Toeplitz matrices: algebraic and analytical aspects. Applications
Álvarez Nodarse, Renato; Soares Petronilho, José Carlos; Quintero, Niurka R. (Elsevier, 2005-12-15)In this paper we use the analytic theory for 2 and 3-Toeplitz matrices to obtain the explicit expressions for the eigenvalues, ...