Cosmological dynamics in sixth-order gravity

We consider the cosmological dynamics in a generalized modified theory of gravity with an R□R term added to the action of the form R + RN. The influence of the R□R term on the known solutions of modified gravity is described. We show that in the particular case of N = 3 the two non-Einsteinian terms are equally important in power-law solutions. These solutions and their stability have been studied using the dynamical system approach. Some results for the case of N ≠ 3 (including stability of the de Sitter solution in the theory under investigation) have been obtained using other methods. © 2011 Pleiades Publishing, Ltd.

Авторы
Skugoreva M. 1 , Toporensky A. 1 , Tretyakov P.2
Редакторы
-
Издательство
-
Номер выпуска
2
Язык
Английский
Страницы
110-118
Статус
Опубликовано
Подразделение
-
Номер
-
Том
17
Год
2011
Организации
  • 1 People's Friendship University of Russia, Mikluho-Maklaya str., 6, Moscow 117198, Russian Federation
  • 2 Joint Institute for Nuclear Research, Dubna, Moscow Region, Russian Federation
Ключевые слова
-
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/2577/