60 citations · 167 across the 5 of their papers we have counts for
8 papers · 1 filter
Self-Dual Skyrmions on the Spheres
Y. Amari, L. A. Ferreira
We construct self-dual sectors for scalar field theories on a -dimensional Minkowski space-time with target space being the -dimensional sphere . The constr…
Quasi-integrability of deformations of the KdV equation
F. ter Braak, L. A. Ferreira, W. J. Zakrzewski
We investigate the quasi-integrability properties of various deformations of the Korteweg-de Vries (KdV) equation, depending on two parameters and ,…
A mild source for the Wu-Yang magnetic monopole
C. P. Constantinidis, L. A. Ferreira, G. Luchini
We establish that the Wu-Yang monopole needs the introduction of a magnetic point source at the origin in order for it to be a solution of the differential and integral equations f…
Quasi-integrable deformations of the Affine Toda Theory
Luiz A. Ferreira, Pawel Klimas, Wojtek J. Zakrzewski
We consider deformations of the Affine Toda theory (AT) and investigate the integrability properties of the deformed theories. We find that for some special deformations al…
The concept of quasi-integrability: a concrete example
L. A. Ferreira, Wojtek J. Zakrzewski
We use the deformed sine-Gordon models recently presented by Bazeia et al to discuss possible definitions of quasi-integrability. We present one such definition and use it to calcu…
Integrable theories and loop spaces: fundamentals, applications and new developments
Orlando Alvarez, L. A. Ferreira, J. Sanchez-Guillen
We review our proposal to generalize the standard two-dimensional flatness construction of Lax-Zakharov-Shabat to relativistic field theories in d+1 dimensions. The fundamentals fr…