Zobrazeno 1 - 10
of 261
pro vyhledávání: '"Shubina, Maria"'
Autor:
Shubina, Maria V.
In this paper we present a general vacuum solution of the modified Gauss-Bonnet gravity equations for the Friedmann-Lema\^itre-Robertson-Walker metric. We use an ansatz to reduce the gravitational equations to an ordinary differential equations for f
Externí odkaz:
http://arxiv.org/abs/2403.13919
Autor:
Shubina, Maria
In this paper we present a number of examples of exact solutions for the Friedmann cosmological equation for metric $ F(R) $ gravity model. Emphasis was placed on the possibility of obtaining exact time dependences of the main cosmological physical q
Externí odkaz:
http://arxiv.org/abs/2312.16670
Autor:
Shubina, Maria
In this paper we consider the metric power-law $f(R)\sim R^n $-gravity model for the four-dimensional metric tensor depending on two coordinates. We obtain exact analytical vacuum solutions for different values of $ n $. These solutions contain both
Externí odkaz:
http://arxiv.org/abs/2212.11648
Dissertation/ Thesis
Autor:
Shubina, Maria
Influenza A viruses (IAV) are negative sense RNA viruses that naturally infect a wide variety of animals. Different subtypes of the virus infect waterfowl, poultry, pigs, horses, ferrets, bats, dogs, cats and humans, causing zoonotic outbreaks and pa
Externí odkaz:
http://hdl.handle.net/20.500.12613/3565
Autor:
Shubina, Maria
In this paper we consider the two-dimensional metric $f(R)$-gravity model for the metric tensor depending on two variable: time and one spacelike coordinate. We obtain exact analytical vacuum solutions for different forms of function $ f(R) $ which a
Externí odkaz:
http://arxiv.org/abs/2105.07994
Autor:
Shubina, Maria
Publikováno v:
In Annals of Physics March 2024 462
Autor:
Shubina, Maria
Publikováno v:
In Annals of Physics April 2023 451
Autor:
Shubina, Maria
In this paper we consider continuous mathematical models of tumour growth and invasion based on the model introduced by Chaplain and Lolas \cite{Chaplain&Lolas2006}, for the case of one space dimension. The models consist of a system of three coupled
Externí odkaz:
http://arxiv.org/abs/1806.10627
Autor:
Shubina, Maria
In this paper we present a system of two nonlinear partial differential equations of the second order, depending on the time and one spatial coordinate. It can be written as a system of two Burgers equations, which allows one to immediately conclude
Externí odkaz:
http://arxiv.org/abs/1707.09852
Autor:
Shubina, Maria
In this paper we consider three different 1D parabolic-parabolic systems of chemotaxis. For these systems we obtain the exact analytical solutions in terms of traveling wave variables.
Comment: 14 pages, 15 figures
Comment: 14 pages, 15 figures
Externí odkaz:
http://arxiv.org/abs/1704.07465