SILVA, I. A.; http://lattes.cnpq.br/7102315332585337; SILVA, Ione Almeida.
Resumo:
Analytic solutions associated with nonlinear differential equations are present in the
context of classical field theory. In this dissertation, we made a review covering the main
concepts on one dimensional defect like solutions known as Kink, and Lump. During our
investigation, we determine the equations of motion related with such defects, and we also
used the so-called first-order to find analytic defect-like solutions. We then applied these
solutions in standard cosmology and we discovered scenarios which are compatible with
the different phases of evolution our Universe passed through. In this work, we carried out
a study on cosmological scenarios, in order to describe the current phase of expansion of
the Universe, based on hybrid models, built with asymmetric inflatons.