| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2016 |
| Язык | русский |
|
Игнатьев Юрий Геннадиевич, автор
|
| Библиографическое описание на языке оригинала |
Yurii Ignat'ev. Qualitative Analysis and Numerical Simulation of Equations of the Standard Cosmological Model: Λ≠0 // arXiv:1609.08851 [gr-qc]. |
| Аннотация |
On the basis of qualitative analysis of the system of differential equations of thestandard cosmological model it is shown that in the case of zero cosmological constant this system has a stable center corresponding to zero values of potential and its derivative at infinity. Thus, the cosmological model based on single massive classical
scalar field in infinite future would give a flat Universe. The carried out numerical simulation of the dynamic system corresponding to the system of Einstein - Klein - Gordon equations showed that at great times of the evolution the invariant cosmological acceleration has an oscillating character and changes from −2 (braking), to +1 (acceleration). Average value of the cosmological acceleration is negative and is equal to −1/2. Oscillations of the cosmological acceleration happen on the background
of rapidly falling Hubble constant. In the case of nonzero value of the cosmological constant depending on its value there are possible three various qu |
| Ключевые слова |
standard cosmological model, instability, quality analysis, numerical simula-
tion, zero - center flat universe, cosmological term, numerical gravitation |
| Название журнала |
arXiv: General Relativity and Quantum Cosmology
|
| URL |
http://arxiv.org/abs/1609.08851 |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=139310 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Игнатьев Юрий Геннадиевич |
ru_RU |
| dc.date.accessioned |
2016-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2016-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2016 |
ru_RU |
| dc.identifier.citation |
Yurii Ignat'ev. Qualitative Analysis and Numerical Simulation of Equations of the Standard Cosmological Model: Λ≠0 // arXiv:1609.08851 [gr-qc]. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=139310 |
ru_RU |
| dc.description.abstract |
arXiv: General Relativity and Quantum Cosmology |
ru_RU |
| dc.description.abstract |
On the basis of qualitative analysis of the system of differential equations of thestandard cosmological model it is shown that in the case of zero cosmological constant this system has a stable center corresponding to zero values of potential and its derivative at infinity. Thus, the cosmological model based on single massive classical
scalar field in infinite future would give a flat Universe. The carried out numerical simulation of the dynamic system corresponding to the system of Einstein - Klein - Gordon equations showed that at great times of the evolution the invariant cosmological acceleration has an oscillating character and changes from −2 (braking), to +1 (acceleration). Average value of the cosmological acceleration is negative and is equal to −1/2. Oscillations of the cosmological acceleration happen on the background
of rapidly falling Hubble constant. In the case of nonzero value of the cosmological constant depending on its value there are possible three various qu |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
standard cosmological model |
ru_RU |
| dc.subject |
instability |
ru_RU |
| dc.subject |
quality analysis |
ru_RU |
| dc.subject |
numerical simula-
tion |
ru_RU |
| dc.subject |
zero - center flat universe |
ru_RU |
| dc.subject |
cosmological term |
ru_RU |
| dc.subject |
numerical gravitation |
ru_RU |
| dc.title |
Qualitative Analysis and Numerical Simulation of Equations of the Standard Cosmological Model: Λ≠0 |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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