© 2019, Pleiades Publishing, Ltd. A detailed comparative qualitative analysis is carried out for of the evolution of cosmological models based on a doublet of classical and phantom scalar fields with self-action. Just as ...

© 2019, Springer Science+Business Media, LLC, part of Springer Nature. On the basis of a qualitative and numerical analysis of a cosmological model based on an asymmetric scalar doublet of nonlinear, minimally interacting ...

© 2018, Springer Science+Business Media, LLC, part of Springer Nature. A qualitative analysis of a cosmological model based on the asymmetric scalar doublet classical + phantom scalar field with minimal interaction is ...

© Medwell Journals, 2016.The formation of effective insurance portfolio affects the company's financial sustainability. The study gives variants of portfolio formation algorithm which possess factors characterizing tendencies ...