Resumo:
In this work we propose the development of new models of two and three fields coupled
scalar real supporting BPS solutions (Bogomolnyi-Prasad-Sommerfield). For this purpose,
we will use the recently proposed method, known as the extension method. In particular,
we will explicitly construct new models of two and three coupled scalar fields, and also
we will study the linear stability of their respective BPS solutions.
