As an extension of the class of nonlinear PT-symmetric models, we propose a system of sine-Gordon equations, with the PT ...

Following the highly restrictive measures adopted by many countries for combating the current pandemic, the number of ...

We study four diferent approximations for finding the profile of discrete solitons in the one-dimensional Discrete Nonlinear ...

It is widely accepted that the number of reported cases during the first stages of the COVID-19 pandemic severely ...

In this paper, we examine a nonlinear model with an impurity emulating a bend. We justify the geometric interpretation of ...

We study localized waves in chains of oscillators coupled by Hertzian interactions and trapped in local potentials. This ...

We prove nonexistence of breathers (spatially localized and time-periodic oscillations) for a class of Fermi-Pasta-Ulam ...

We study the coupling between backward- and forward-propagating wave modes, with the same group velocity, in a composite ...

the present work, we numerically explore the existence and stability properties of different types of configurations of ...

In this work, we present a mechanical example of an experimental realization of a stability reversal between on-site and ...