Forthcoming seminars
Seminar calendar
List of seminars
Archive by years
Register a seminar

Forthcoming seminars

You may need the following programs to see the files

Steklov Mathematical Institute Seminar
December 17, 2020 16:00, Moscow, online

Cosmological solutions of nonlocal gravity theory

B. Dragovichab

a University of Belgrade, Institute of Physics
b Serbian Academy of Sciences and Arts, Mathematical Institute
Video records:
MP4 347.9 Mb

Number of views:
This page:334
Video files:130

B. Dragovich

Видео не загружается в Ваш браузер:
  1. Установите Adobe Flash Player    

  2. Проверьте с Вашим администратором, что из Вашей сети разрешены исходящие соединения на порт 8080
  3. Сообщите администратору портала о данной ошибке

Abstract: Despite remarkable theoretical properties and numerous phenomenological predictions with confirmations, General Relativity (GR) is not a final theory of gravity. Problems mainly come from quantum gravity, astrophysics and cosmology. Therefore, there are many attempts to appropriately extend GR. In this talk, I consider a nonlocal gravity theory and its cosmological solutions. In particular, I investigate nonlocal models, where nonlocality is presented by an analytic function of the d’Alembert operator. Some exact vacuum cosmological solutions of the corresponding equations of motion will be presented. We pay special attention to the cosmological solution which mimics dark matter and dark energy. Computed cosmological parameters are in good agreement with cosmological observations. Details can be found in our recent papers [1,2] and references therein.


  1. I. Dimitrijevic, B. Dragovich, A. S. Koshelev, Z. Rakic and J. Stankovic, “Cosmological solutions of a nonlocal square root gravity”, Phys. Lett. B, 797 (2019), 134848, arXiv: 1906.07560 [gr-qc]
  2. I. Dimitrijevic, B. Dragovich, A. S. Koshelev, Z. Rakic and J. Stankovic, “Some cosmological solutions of a new nonlocal gravity model”, Symmetry, 12 (2020), 917, arXiv: 2006.16041 [gr-qc]

* Meeting ID: 614 254 2078 Password: 758608

SHARE: FaceBook Twitter Livejournal
Contact us:
 Terms of Use  Registration  Logotypes © Steklov Mathematical Institute RAS, 2021