Аннотация
Gravitational instability in classical Jeans theory, General Relativity, and modified gravity is considered. It is shown that density perturbations in the background with an increasing density rise faster than in the case of time independent background. Evolution of density and metric perturbations in the background of high frequency oscillations of curvature in F (R) gravity is studied. In addition to the usual Jeans-like instability new effects of amplification of perturbations, associated with parametric resonance and antifriction phenomena, are found.
Язык оригинала | английский |
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Название основной публикации | PARTICLE PHYSICS at the Year of Light |
Издатель | World Scientific Publishing Co. Pte Ltd |
Страницы | 316-319 |
Число страниц | 4 |
Издание | 211889 |
ISBN (печатное издание) | 9789813224551 |
DOI | |
Состояние | Опубликовано - 1 янв 2017 |
Событие | 17th Lomonosov Conference on Elementary Particle Physics, 2015 - Moscow, Российская Федерация Продолжительность: 19 авг 2015 → 25 авг 2015 |
Конференция
Конференция | 17th Lomonosov Conference on Elementary Particle Physics, 2015 |
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Страна | Российская Федерация |
Город | Moscow |
Период | 19.08.2015 → 25.08.2015 |