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The concept of quasi-integrability for modified non-linear Schrodinger models
(SPRINGERNEW YORK, 2012)
We consider modifications of the nonlinear Schrodinger model (NLS) to look at the recently introduced concept of quasi-integrability. We show that such models possess an in finite number of quasi-conserved charges which ...
N=1 super sinh-Gordon model with defects revisited
(Springer, 2015)
Exact vortex solutions in an extended Skyrme-Faddeev model
(INT SCHOOL ADVANCED STUDIES, 2009)
We construct exact vortex solutions in 3+1 dimensions to a theory which is an extension, due to Gies, of the Skyrme-Faddeev model, and that is believed to describe some aspects of the low energy limit of the pure SU(2) ...
The O(N) S-matrix monolith
(2020-04-01)
We consider the scattering matrices of massive quantum field theories with no bound states and a global O(N) symmetry in two spacetime dimensions. In particular we explore the space of two-to-two S-matrices of particles ...
Some properties of (3+1) dimensional vortex solutions in the extended CPN Skyrme-Faddeev model
(Societa Italiana di Fisica - SIFBologna, 2011-12)
We look at properties of vortex solutions of the extended CPN Skyrme-Faddeev model. We show that only holomorphic solutions of the CPN model are also solutions of the Skyrme-Faddeev model. As the total energy of these ...
Type-II defects in integrable classical field theories
(Universidade Estadual Paulista (Unesp), 2012-09-27)
Nesta tese discutimos as propriedades de integrabilidade das teorias de campo clássicas em duas dimensões na presença de descontinuidades ou defeitos tipo-II, principalmente usando a linguagem do formalismo do espalhamento ...
Type-II defects in integrable classical field theories
(Universidade Estadual Paulista (Unesp), 2012-09-27)
Nesta tese discutimos as propriedades de integrabilidade das teorias de campo clássicas em duas dimensões na presença de descontinuidades ou defeitos tipo-II, principalmente usando a linguagem do formalismo do espalhamento ...
Dynamical and algebraic analysis of planar polynomial vector fields linked to orthogonal polynomials
(Southwest Jiaotong University, 2020-08)
In the present work, our goal is to establish a study of some families of quadratic polynomial vector fields connected to orthogonal polynomials that relate, via two different points of view, the qualitative and the algebraic ...